◐
x402 Trust Prober
Verification PAYMENT-READYpayment-ready until 2026-10-06
Deterministic trust scoring and monitoring for the x402 ecosystem. 88k+ endpoints tracked 24/7 on Base + Solana: probe reliability, latency, spec compliance, price history, and real on-chain USDC settlement per endpoint. Paid API: per-endpoint trust score with live re-probe, bulk scoring tiers (10-500), endpoint history, similar-endpoint discovery, payment tracing, and 30-day watch subscriptions with webhook/Slack alerts. Free: trust preview, leaderboard, ecosystem report, embeddable badges. Scoring is a deterministic formula - no LLM in the loop, fully explainable.
Pay from $0.005 to $0.50 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
measured since 2026-05-15 (start of our harvest window) · $8.92 all-time · settled via coinbase
VERDICT
ranking generation 3solid 80/100 #76 of 113 in Verification by measured score
What the score read on this service: status degraded, 99% uptime 30d, 828ms response p95, x402 compliance 14 of 14, $0.005 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
It is a score inside Verification, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 113 listings, this one among them. That set is wider than the 113 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
ALTERNATIVES IN VERIFICATION
Other Verification services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).
| SERVICE | BAND | SCORE | UPTIME 30D | VOL 30D |
|---|---|---|---|---|
| scvd.store — evidence observatory for the x402 economy | strong | 94 | 100% | $918.33 |
| Rubric Protocol — Post-Quantum AI Attestation | solid | 93 | 99.8% | $33.21 |
| Enclave402 | solid | 89 | 100% | $3.98 |
| LION — Verified Company & Compliance Data | solid | 89 | 100% | $5.80 |
| 767-2676.com - POPCORN | solid | 89 | 100% | $0.11 |
5 of 112 other ranked services in Verification
ASSESSMENT
updated 58m agoThe parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.
reliability 99%
- uptime · latest daily rollup
- 100%
- uptime 7d
- 99.5%
- uptime 30d
- 99%
- uptime 90d
- 99%
- response p95
- 828ms
- avg response
- 386ms
- total checks
- 2,651
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.005 to $0.50 (p26 in Verification)
- price (min)
- $0.005
- price (max)
- $0.50
- category percentile (min)
- p26 in Verification
- category percentile (max)
- p75 in Verification
- endpoints / prices
- 10 / 8
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 135d
- registrar
- CloudFlare, Inc.
- hosting
- custom
- domain created
- 2026-05-15
Identity facts, not a risk score.
traction $1.747 30d · 14 buyers
- volume 30d
- $1.747
- buyers 30d
- 14
- settlements 30d
- 40
- measured since
- 2026-05-15 (start of our harvest window)
- last settlement
- 2026-09-28
- top buyer share
- 86% of 30d volume (address, not entity)
- trend 7d vs 30d
- 0.10x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $8.92
- settlements all-time
- 231
- median settlement 30d
- $0.005
- max settlement 30d
- $0.50
- settled via
- coinbase ($1.75, 40 tx)
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /v1/similar | $0.005 | Base | USDC | header | |
| GET | /v1/watch-endpoint-30d | $0.20 | Base | USDC | header | |
| GET | /v1/x402-history | $0.02 | Base | USDC | header | |
| GET | /v1/x402-payment-trace | $0.011673 | Base | USDC | header | |
| GET | /v1/x402-trust | $0.005 | Base | USDC | header | |
| GET | /v1/x402-trust-bulk-10 | $0.045 | Base | USDC | header | |
| GET | /v1/x402-trust-bulk-100 | $0.325 | Base | USDC | header | |
| GET | /v1/x402-trust-bulk-200 | $0.40 | Base | USDC | header | |
| GET | /v1/x402-trust-bulk-50 | $0.20 | Base | USDC | header | |
| GET | /v1/x402-trust-bulk-500 | $0.50 | Base | USDC | header |
10 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/similar returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://x402.fuchss.app/v1/similar'
// 402 response (captured by monitor) · 10 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"resource": {
"type": "string",
"required": true,
"description": "Full x402 resource URL exactly as listed in discovery (e.g. https://api.example.com/v1/thing)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"flags": "array",
"grade": "string",
"score": "number",
"stats": "object",
"resource": "string",
"breakdown": "object",
"confidence": "number"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-trust",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Trust score (0-100, grade A-F) for any publicly listed x402 endpoint. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address — is anyone actually paying it, or is it just live? Computed deterministically from continuous monitoring: 30d probe uptime, 402-envelope spec compliance, latency, observed age, on-chain settlement activity, and advertised-price stability. Includes a full component breakdown, machine-readable flags, and an honest observedDays (we report only the history we actually have, with dataCompleteSince marking our gap-free on-chain coverage). Know before you pay.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"resource": "https://api.example.com/v1/thing"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"flags": [],
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0xabc…123",
"delisted": false,
"probes30d": 1440,
"probeOk30d": 1427,
"avgLatencyMs": 312,
"observedDays": 5,
"settlements30d": 18234,
"distinctPayers30d": 96,
"settledVolumeUnits30d": "364680000"
},
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"uptime": 0.99,
"latency": 0.91,
"observedAge": 0.6,
"priceStability": 1,
"envelopeCompliance": 1,
"settlementActivity": 0.74
},
"confidence": 0.82,
"description": "Provider-advertised description of the endpoint (unverified claim).",
"serviceName": "Example Thing API",
"dataCompleteSince": 1748736000000
}
}
},
"tags": [
"x402",
"trust",
"score",
"monitoring",
"reliability"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resource"
],
"properties": {
"resource": {
"type": "string"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"resource",
"serviceName",
"description",
"score",
"grade",
"confidence",
"breakdown",
"flags",
"dataCompleteSince",
"stats"
],
"properties": {
"flags": {
"type": "array"
},
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"stats": {
"type": "object",
"required": [
"observedDays",
"probes30d",
"probeOk30d",
"avgLatencyMs",
"payTo",
"settlements30d",
"distinctPayers30d",
"settledVolumeUnits30d",
"delisted"
],
"properties": {
"payTo": {
"type": "string"
},
"delisted": {
"type": "boolean"
},
"probes30d": {
"type": "integer"
},
"probeOk30d": {
"type": "integer"
},
"avgLatencyMs": {
"type": "integer"
},
"observedDays": {
"type": "integer"
},
"settlements30d": {
"type": "integer"
},
"distinctPayers30d": {
"type": "integer"
},
"settledVolumeUnits30d": {
"type": "string"
}
}
},
"resource": {
"type": "string"
},
"breakdown": {
"type": "object",
"required": [
"uptime",
"envelopeCompliance",
"latency",
"observedAge",
"settlementActivity",
"priceStability"
],
"properties": {
"uptime": {
"type": "number"
},
"latency": {
"type": "number"
},
"observedAge": {
"type": "number"
},
"priceStability": {
"type": "integer"
},
"envelopeCompliance": {
"type": "integer"
},
"settlementActivity": {
"type": "number"
}
}
},
"confidence": {
"type": "number"
},
"description": {
"type": "string"
},
"serviceName": {
"type": "string"
},
"dataCompleteSince": {
"type": "integer"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "45000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"resources": {
"type": "array",
"required": true,
"description": "List of full x402 resource URLs (https://...) to score. Max = tier size; fewer is allowed; duplicates are ignored."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"flags": "array | undefined",
"found": "boolean",
"grade": "string | undefined",
"score": "number | undefined",
"stats": "object | undefined",
"pending": "boolean | undefined",
"resource": "string",
"breakdown": "object | undefined",
"freshness": "object | undefined",
"probed_at": "number | undefined",
"subscores": "object | undefined",
"templated": "boolean | undefined",
"advertised": "object | null | undefined",
"confidence": "number | undefined",
"probes_30d": "number | undefined",
"recomputed": "boolean | undefined",
"scoreRange": "object | undefined",
"computed_at": "number | undefined",
"description": "string | null | undefined",
"endpoint_id": "number | undefined",
"serviceName": "string | null | undefined",
"explanations": "array | undefined",
"flagsDetailed": "array | undefined",
"recommendation": "string | undefined",
"gradeThresholds": "object | undefined",
"confidenceDetail": "object | undefined",
"dataCompleteSince": "number | null | undefined"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-trust-bulk-10",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Score up to 10 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"resources": [
"https://api.example.com/v1/thing"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"tier": 10,
"results": [
{
"flags": [],
"found": true,
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0x1111111111111111111111111111111111111111",
"delisted": false,
"probes30d": 144,
"payToStale": false,
"probeOk30d": 143,
"firstSeenTs": 1748707200000,
"avgLatencyMs": 210,
"observedDays": 30,
"latencyVantage": "measured from a single EU vantage point; includes network round-trip distance to the endpoint",
"settlements30d": 52,
"payToLastSeenTs": 1751299100000,
"payToSharedWith": 0,
"priceChanges30d": 0,
"settlementAsset": "USDC",
"envelopeValid30d": 144,
"distinctPayers30d": 14,
"settlementDecimals": 6,
"settledVolumeUsd30d": 5.2,
"settledVolumeUnits30d": "5200000"
},
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"age": 0.7,
"uptime": 0.99,
"latency": 0.85,
"activity": 0.6,
"stability": 1,
"compliance": 1
},
"freshness": {
"live": false,
"ageSeconds": 100,
"probedAtTs": 1751299100000
},
"probed_at": 1751299100000,
"subscores": {
"economicConfidence": 0.6,
"specComplianceScore": 100,
"economicReputationScore": 71,
"technicalReliabilityScore": 92
},
"templated": false,
"advertised": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"network": "eip155:8453",
"decimals": 6,
"amountUsd": 0.01,
"observedAtTs": 1751299100000
},
"confidence": 0.82,
"probes_30d": 144,
"recomputed": true,
"scoreRange": {
"low": 82.1,
"high": 90,
"point": 87.4
},
"computed_at": 1751299200000,
"description": "Returns a thing.",
"endpoint_id": 123,
"serviceName": "Example Thing API",
"explanations": [
"High uptime over 144 probes.",
"Consistent 402 envelope compliance."
],
"flagsDetailed": [],
"recommendation": "proceed",
"gradeThresholds": {
"A": 80,
"B": 65,
"C": 50,
"D": 35,
"F": 0
},
"confidenceDetail": {
"overall": 0.82,
"economic": 0.6,
"observation": 0.9
},
"dataCompleteSince": 1748707200000
},
{
"found": false,
"grade": null,
"score": null,
"resource": "https://api.unknown.example/v1/missing",
"probed_at": null,
"confidence": null,
"probes_30d": null,
"recomputed": false,
"computed_at": null,
"endpoint_id": null,
"recommendation": null
}
],
"requested": 2,
"generated_at": 1751299200000,
"recomputed_ms": 420,
"recomputed_count": 1,
"recompute_limit_hit": false
}
}
},
"tags": [
"x402",
"trust",
"bulk",
"score",
"routing"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resources"
],
"properties": {
"resources": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"generated_at",
"tier",
"requested",
"recomputed_count",
"recomputed_ms",
"recompute_limit_hit",
"results"
],
"properties": {
"tier": {
"type": "integer"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"found",
"endpoint_id",
"score",
"grade",
"recommendation",
"confidence",
"probes_30d",
"probed_at",
"computed_at",
"recomputed"
],
"properties": {
"flags": {
"type": "array"
},
"found": {
"type": "boolean"
},
"grade": {
"type": [
"null",
"string"
]
},
"score": {
"type": [
"null",
"number"
]
},
"stats": {
"type": "object",
"required": [
"firstSeenTs",
"observedDays",
"probes30d",
"probeOk30d",
"envelopeValid30d",
"avgLatencyMs",
"latencyVantage",
"priceChanges30d",
"payTo",
"payToLastSeenTs",
"payToStale",
"payToSharedWith",
"settlements30d",
"distinctPayers30d",
"settledVolumeUnits30d",
"settledVolumeUsd30d",
"settlementAsset",
"settlementDecimals",
"delisted"
],
"properties": {
"payTo": {
"type": "string"
},
"delisted": {
"type": "boolean"
},
"probes30d": {
"type": "integer"
},
"payToStale": {
"type": "boolean"
},
"probeOk30d": {
"type": "integer"
},
"firstSeenTs": {
"type": "integer"
},
"avgLatencyMs": {
"type": "integer"
},
"observedDays": {
"type": "integer"
},
"latencyVantage": {
"type": "string"
},
"settlements30d": {
"type": "integer"
},
"payToLastSeenTs": {
"type": "integer"
},
"payToSharedWith": {
"type": "integer"
},
"priceChanges30d": {
"type": "integer"
},
"settlementAsset": {
"type": "string"
},
"envelopeValid30d": {
"type": "integer"
},
"distinctPayers30d": {
"type": "integer"
},
"settlementDecimals": {
"type": "integer"
},
"settledVolumeUsd30d": {
"type": "number"
},
"settledVolumeUnits30d": {
"type": "string"
}
}
},
"resource": {
"type": "string"
},
"breakdown": {
"type": "object",
"required": [
"uptime",
"compliance",
"latency",
"age",
"activity",
"stability"
],
"properties": {
"age": {
"type": "number"
},
"uptime": {
"type": "number"
},
"latency": {
"type": "number"
},
"activity": {
"type": "number"
},
"stability": {
"type": "integer"
},
"compliance": {
"type": "integer"
}
}
},
"freshness": {
"type": "object",
"required": [
"live",
"probedAtTs",
"ageSeconds"
],
"properties": {
"live": {
"type": "boolean"
},
"ageSeconds": {
"type": "integer"
},
"probedAtTs": {
"type": "integer"
}
}
},
"probed_at": {
"type": [
"integer",
"null"
]
},
"subscores": {
"type": "object",
"required": [
"technicalReliabilityScore",
"specComplianceScore",
"economicReputationScore",
"economicConfidence"
],
"properties": {
"economicConfidence": {
"type": "number"
},
"specComplianceScore": {
"type": "integer"
},
"economicReputationScore": {
"type": "integer"
},
"technicalReliabilityScore": {
"type": "integer"
}
}
},
"templated": {
"type": "boolean"
},
"advertised": {
"type": "object",
"required": [
"amount",
"amountUsd",
"asset",
"network",
"decimals",
"observedAtTs"
],
"properties": {
"asset": {
"type": "string"
},
"amount": {
"type": "string"
},
"network": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"amountUsd": {
"type": "number"
},
"observedAtTs": {
"type": "integer"
}
}
},
"confidence": {
"type": [
"null",
"number"
]
},
"probes_30d": {
"type": [
"integer",
"null"
]
},
"recomputed": {
"type": "boolean"
},
"scoreRange": {
"type": "object",
"required": [
"low",
"point",
"high"
],
"properties": {
"low": {
"type": "number"
},
"high": {
"type": "integer"
},
"point": {
"type": "number"
}
}
},
"computed_at": {
"type": [
"integer",
"null"
]
},
"description": {
"type": "string"
},
"endpoint_id": {
"type": [
"integer",
"null"
]
},
"serviceName": {
"type": "string"
},
"explanations": {
"type": "array",
"items": {
"type": "string"
}
},
"flagsDetailed": {
"type": "array"
},
"recommendation": {
"type": [
"null",
"string"
]
},
"gradeThresholds": {
"type": "object",
"required": [
"A",
"B",
"C",
"D",
"F"
],
"properties": {
"A": {
"type": "integer"
},
"B": {
"type": "integer"
},
"C": {
"type": "integer"
},
"D": {
"type": "integer"
},
"F": {
"type": "integer"
}
}
},
"confidenceDetail": {
"type": "object",
"required": [
"overall",
"observation",
"economic"
],
"properties": {
"overall": {
"type": "number"
},
"economic": {
"type": "number"
},
"observation": {
"type": "number"
}
}
},
"dataCompleteSince": {
"type": "integer"
}
}
}
},
"requested": {
"type": "integer"
},
"generated_at": {
"type": "integer"
},
"recomputed_ms": {
"type": "integer"
},
"recomputed_count": {
"type": "integer"
},
"recompute_limit_hit": {
"type": "boolean"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"resources": {
"type": "array",
"required": true,
"description": "List of full x402 resource URLs (https://...) to score. Max = tier size; fewer is allowed; duplicates are ignored."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"flags": "array | undefined",
"found": "boolean",
"grade": "string | undefined",
"score": "number | undefined",
"stats": "object | undefined",
"pending": "boolean | undefined",
"resource": "string",
"breakdown": "object | undefined",
"freshness": "object | undefined",
"probed_at": "number | undefined",
"subscores": "object | undefined",
"templated": "boolean | undefined",
"advertised": "object | null | undefined",
"confidence": "number | undefined",
"probes_30d": "number | undefined",
"recomputed": "boolean | undefined",
"scoreRange": "object | undefined",
"computed_at": "number | undefined",
"description": "string | null | undefined",
"endpoint_id": "number | undefined",
"serviceName": "string | null | undefined",
"explanations": "array | undefined",
"flagsDetailed": "array | undefined",
"recommendation": "string | undefined",
"gradeThresholds": "object | undefined",
"confidenceDetail": "object | undefined",
"dataCompleteSince": "number | null | undefined"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-trust-bulk-50",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Score up to 50 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"resources": [
"https://api.example.com/v1/thing"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"tier": 10,
"results": [
{
"flags": [],
"found": true,
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0x1111111111111111111111111111111111111111",
"delisted": false,
"probes30d": 144,
"payToStale": false,
"probeOk30d": 143,
"firstSeenTs": 1748707200000,
"avgLatencyMs": 210,
"observedDays": 30,
"latencyVantage": "measured from a single EU vantage point; includes network round-trip distance to the endpoint",
"settlements30d": 52,
"payToLastSeenTs": 1751299100000,
"payToSharedWith": 0,
"priceChanges30d": 0,
"settlementAsset": "USDC",
"envelopeValid30d": 144,
"distinctPayers30d": 14,
"settlementDecimals": 6,
"settledVolumeUsd30d": 5.2,
"settledVolumeUnits30d": "5200000"
},
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"age": 0.7,
"uptime": 0.99,
"latency": 0.85,
"activity": 0.6,
"stability": 1,
"compliance": 1
},
"freshness": {
"live": false,
"ageSeconds": 100,
"probedAtTs": 1751299100000
},
"probed_at": 1751299100000,
"subscores": {
"economicConfidence": 0.6,
"specComplianceScore": 100,
"economicReputationScore": 71,
"technicalReliabilityScore": 92
},
"templated": false,
"advertised": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"network": "eip155:8453",
"decimals": 6,
"amountUsd": 0.01,
"observedAtTs": 1751299100000
},
"confidence": 0.82,
"probes_30d": 144,
"recomputed": true,
"scoreRange": {
"low": 82.1,
"high": 90,
"point": 87.4
},
"computed_at": 1751299200000,
"description": "Returns a thing.",
"endpoint_id": 123,
"serviceName": "Example Thing API",
"explanations": [
"High uptime over 144 probes.",
"Consistent 402 envelope compliance."
],
"flagsDetailed": [],
"recommendation": "proceed",
"gradeThresholds": {
"A": 80,
"B": 65,
"C": 50,
"D": 35,
"F": 0
},
"confidenceDetail": {
"overall": 0.82,
"economic": 0.6,
"observation": 0.9
},
"dataCompleteSince": 1748707200000
},
{
"found": false,
"grade": null,
"score": null,
"resource": "https://api.unknown.example/v1/missing",
"probed_at": null,
"confidence": null,
"probes_30d": null,
"recomputed": false,
"computed_at": null,
"endpoint_id": null,
"recommendation": null
}
],
"requested": 2,
"generated_at": 1751299200000,
"recomputed_ms": 420,
"recomputed_count": 1,
"recompute_limit_hit": false
}
}
},
"tags": [
"x402",
"trust",
"bulk",
"score",
"routing"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resources"
],
"properties": {
"resources": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"generated_at",
"tier",
"requested",
"recomputed_count",
"recomputed_ms",
"recompute_limit_hit",
"results"
],
"properties": {
"tier": {
"type": "integer"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"found",
"endpoint_id",
"score",
"grade",
"recommendation",
"confidence",
"probes_30d",
"probed_at",
"computed_at",
"recomputed"
],
"properties": {
"flags": {
"type": "array"
},
"found": {
"type": "boolean"
},
"grade": {
"type": [
"null",
"string"
]
},
"score": {
"type": [
"null",
"number"
]
},
"stats": {
"type": "object",
"required": [
"firstSeenTs",
"observedDays",
"probes30d",
"probeOk30d",
"envelopeValid30d",
"avgLatencyMs",
"latencyVantage",
"priceChanges30d",
"payTo",
"payToLastSeenTs",
"payToStale",
"payToSharedWith",
"settlements30d",
"distinctPayers30d",
"settledVolumeUnits30d",
"settledVolumeUsd30d",
"settlementAsset",
"settlementDecimals",
"delisted"
],
"properties": {
"payTo": {
"type": "string"
},
"delisted": {
"type": "boolean"
},
"probes30d": {
"type": "integer"
},
"payToStale": {
"type": "boolean"
},
"probeOk30d": {
"type": "integer"
},
"firstSeenTs": {
"type": "integer"
},
"avgLatencyMs": {
"type": "integer"
},
"observedDays": {
"type": "integer"
},
"latencyVantage": {
"type": "string"
},
"settlements30d": {
"type": "integer"
},
"payToLastSeenTs": {
"type": "integer"
},
"payToSharedWith": {
"type": "integer"
},
"priceChanges30d": {
"type": "integer"
},
"settlementAsset": {
"type": "string"
},
"envelopeValid30d": {
"type": "integer"
},
"distinctPayers30d": {
"type": "integer"
},
"settlementDecimals": {
"type": "integer"
},
"settledVolumeUsd30d": {
"type": "number"
},
"settledVolumeUnits30d": {
"type": "string"
}
}
},
"resource": {
"type": "string"
},
"breakdown": {
"type": "object",
"required": [
"uptime",
"compliance",
"latency",
"age",
"activity",
"stability"
],
"properties": {
"age": {
"type": "number"
},
"uptime": {
"type": "number"
},
"latency": {
"type": "number"
},
"activity": {
"type": "number"
},
"stability": {
"type": "integer"
},
"compliance": {
"type": "integer"
}
}
},
"freshness": {
"type": "object",
"required": [
"live",
"probedAtTs",
"ageSeconds"
],
"properties": {
"live": {
"type": "boolean"
},
"ageSeconds": {
"type": "integer"
},
"probedAtTs": {
"type": "integer"
}
}
},
"probed_at": {
"type": [
"integer",
"null"
]
},
"subscores": {
"type": "object",
"required": [
"technicalReliabilityScore",
"specComplianceScore",
"economicReputationScore",
"economicConfidence"
],
"properties": {
"economicConfidence": {
"type": "number"
},
"specComplianceScore": {
"type": "integer"
},
"economicReputationScore": {
"type": "integer"
},
"technicalReliabilityScore": {
"type": "integer"
}
}
},
"templated": {
"type": "boolean"
},
"advertised": {
"type": "object",
"required": [
"amount",
"amountUsd",
"asset",
"network",
"decimals",
"observedAtTs"
],
"properties": {
"asset": {
"type": "string"
},
"amount": {
"type": "string"
},
"network": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"amountUsd": {
"type": "number"
},
"observedAtTs": {
"type": "integer"
}
}
},
"confidence": {
"type": [
"null",
"number"
]
},
"probes_30d": {
"type": [
"integer",
"null"
]
},
"recomputed": {
"type": "boolean"
},
"scoreRange": {
"type": "object",
"required": [
"low",
"point",
"high"
],
"properties": {
"low": {
"type": "number"
},
"high": {
"type": "integer"
},
"point": {
"type": "number"
}
}
},
"computed_at": {
"type": [
"integer",
"null"
]
},
"description": {
"type": "string"
},
"endpoint_id": {
"type": [
"integer",
"null"
]
},
"serviceName": {
"type": "string"
},
"explanations": {
"type": "array",
"items": {
"type": "string"
}
},
"flagsDetailed": {
"type": "array"
},
"recommendation": {
"type": [
"null",
"string"
]
},
"gradeThresholds": {
"type": "object",
"required": [
"A",
"B",
"C",
"D",
"F"
],
"properties": {
"A": {
"type": "integer"
},
"B": {
"type": "integer"
},
"C": {
"type": "integer"
},
"D": {
"type": "integer"
},
"F": {
"type": "integer"
}
}
},
"confidenceDetail": {
"type": "object",
"required": [
"overall",
"observation",
"economic"
],
"properties": {
"overall": {
"type": "number"
},
"economic": {
"type": "number"
},
"observation": {
"type": "number"
}
}
},
"dataCompleteSince": {
"type": "integer"
}
}
}
},
"requested": {
"type": "integer"
},
"generated_at": {
"type": "integer"
},
"recomputed_ms": {
"type": "integer"
},
"recomputed_count": {
"type": "integer"
},
"recompute_limit_hit": {
"type": "boolean"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "325000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"resources": {
"type": "array",
"required": true,
"description": "List of full x402 resource URLs (https://...) to score. Max = tier size; fewer is allowed; duplicates are ignored."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"flags": "array | undefined",
"found": "boolean",
"grade": "string | undefined",
"score": "number | undefined",
"stats": "object | undefined",
"pending": "boolean | undefined",
"resource": "string",
"breakdown": "object | undefined",
"freshness": "object | undefined",
"probed_at": "number | undefined",
"subscores": "object | undefined",
"templated": "boolean | undefined",
"advertised": "object | null | undefined",
"confidence": "number | undefined",
"probes_30d": "number | undefined",
"recomputed": "boolean | undefined",
"scoreRange": "object | undefined",
"computed_at": "number | undefined",
"description": "string | null | undefined",
"endpoint_id": "number | undefined",
"serviceName": "string | null | undefined",
"explanations": "array | undefined",
"flagsDetailed": "array | undefined",
"recommendation": "string | undefined",
"gradeThresholds": "object | undefined",
"confidenceDetail": "object | undefined",
"dataCompleteSince": "number | null | undefined"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-trust-bulk-100",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Score up to 100 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"resources": [
"https://api.example.com/v1/thing"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"tier": 10,
"results": [
{
"flags": [],
"found": true,
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0x1111111111111111111111111111111111111111",
"delisted": false,
"probes30d": 144,
"payToStale": false,
"probeOk30d": 143,
"firstSeenTs": 1748707200000,
"avgLatencyMs": 210,
"observedDays": 30,
"latencyVantage": "measured from a single EU vantage point; includes network round-trip distance to the endpoint",
"settlements30d": 52,
"payToLastSeenTs": 1751299100000,
"payToSharedWith": 0,
"priceChanges30d": 0,
"settlementAsset": "USDC",
"envelopeValid30d": 144,
"distinctPayers30d": 14,
"settlementDecimals": 6,
"settledVolumeUsd30d": 5.2,
"settledVolumeUnits30d": "5200000"
},
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"age": 0.7,
"uptime": 0.99,
"latency": 0.85,
"activity": 0.6,
"stability": 1,
"compliance": 1
},
"freshness": {
"live": false,
"ageSeconds": 100,
"probedAtTs": 1751299100000
},
"probed_at": 1751299100000,
"subscores": {
"economicConfidence": 0.6,
"specComplianceScore": 100,
"economicReputationScore": 71,
"technicalReliabilityScore": 92
},
"templated": false,
"advertised": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"network": "eip155:8453",
"decimals": 6,
"amountUsd": 0.01,
"observedAtTs": 1751299100000
},
"confidence": 0.82,
"probes_30d": 144,
"recomputed": true,
"scoreRange": {
"low": 82.1,
"high": 90,
"point": 87.4
},
"computed_at": 1751299200000,
"description": "Returns a thing.",
"endpoint_id": 123,
"serviceName": "Example Thing API",
"explanations": [
"High uptime over 144 probes.",
"Consistent 402 envelope compliance."
],
"flagsDetailed": [],
"recommendation": "proceed",
"gradeThresholds": {
"A": 80,
"B": 65,
"C": 50,
"D": 35,
"F": 0
},
"confidenceDetail": {
"overall": 0.82,
"economic": 0.6,
"observation": 0.9
},
"dataCompleteSince": 1748707200000
},
{
"found": false,
"grade": null,
"score": null,
"resource": "https://api.unknown.example/v1/missing",
"probed_at": null,
"confidence": null,
"probes_30d": null,
"recomputed": false,
"computed_at": null,
"endpoint_id": null,
"recommendation": null
}
],
"requested": 2,
"generated_at": 1751299200000,
"recomputed_ms": 420,
"recomputed_count": 1,
"recompute_limit_hit": false
}
}
},
"tags": [
"x402",
"trust",
"bulk",
"score",
"routing"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resources"
],
"properties": {
"resources": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"generated_at",
"tier",
"requested",
"recomputed_count",
"recomputed_ms",
"recompute_limit_hit",
"results"
],
"properties": {
"tier": {
"type": "integer"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"found",
"endpoint_id",
"score",
"grade",
"recommendation",
"confidence",
"probes_30d",
"probed_at",
"computed_at",
"recomputed"
],
"properties": {
"flags": {
"type": "array"
},
"found": {
"type": "boolean"
},
"grade": {
"type": [
"null",
"string"
]
},
"score": {
"type": [
"null",
"number"
]
},
"stats": {
"type": "object",
"required": [
"firstSeenTs",
"observedDays",
"probes30d",
"probeOk30d",
"envelopeValid30d",
"avgLatencyMs",
"latencyVantage",
"priceChanges30d",
"payTo",
"payToLastSeenTs",
"payToStale",
"payToSharedWith",
"settlements30d",
"distinctPayers30d",
"settledVolumeUnits30d",
"settledVolumeUsd30d",
"settlementAsset",
"settlementDecimals",
"delisted"
],
"properties": {
"payTo": {
"type": "string"
},
"delisted": {
"type": "boolean"
},
"probes30d": {
"type": "integer"
},
"payToStale": {
"type": "boolean"
},
"probeOk30d": {
"type": "integer"
},
"firstSeenTs": {
"type": "integer"
},
"avgLatencyMs": {
"type": "integer"
},
"observedDays": {
"type": "integer"
},
"latencyVantage": {
"type": "string"
},
"settlements30d": {
"type": "integer"
},
"payToLastSeenTs": {
"type": "integer"
},
"payToSharedWith": {
"type": "integer"
},
"priceChanges30d": {
"type": "integer"
},
"settlementAsset": {
"type": "string"
},
"envelopeValid30d": {
"type": "integer"
},
"distinctPayers30d": {
"type": "integer"
},
"settlementDecimals": {
"type": "integer"
},
"settledVolumeUsd30d": {
"type": "number"
},
"settledVolumeUnits30d": {
"type": "string"
}
}
},
"resource": {
"type": "string"
},
"breakdown": {
"type": "object",
"required": [
"uptime",
"compliance",
"latency",
"age",
"activity",
"stability"
],
"properties": {
"age": {
"type": "number"
},
"uptime": {
"type": "number"
},
"latency": {
"type": "number"
},
"activity": {
"type": "number"
},
"stability": {
"type": "integer"
},
"compliance": {
"type": "integer"
}
}
},
"freshness": {
"type": "object",
"required": [
"live",
"probedAtTs",
"ageSeconds"
],
"properties": {
"live": {
"type": "boolean"
},
"ageSeconds": {
"type": "integer"
},
"probedAtTs": {
"type": "integer"
}
}
},
"probed_at": {
"type": [
"integer",
"null"
]
},
"subscores": {
"type": "object",
"required": [
"technicalReliabilityScore",
"specComplianceScore",
"economicReputationScore",
"economicConfidence"
],
"properties": {
"economicConfidence": {
"type": "number"
},
"specComplianceScore": {
"type": "integer"
},
"economicReputationScore": {
"type": "integer"
},
"technicalReliabilityScore": {
"type": "integer"
}
}
},
"templated": {
"type": "boolean"
},
"advertised": {
"type": "object",
"required": [
"amount",
"amountUsd",
"asset",
"network",
"decimals",
"observedAtTs"
],
"properties": {
"asset": {
"type": "string"
},
"amount": {
"type": "string"
},
"network": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"amountUsd": {
"type": "number"
},
"observedAtTs": {
"type": "integer"
}
}
},
"confidence": {
"type": [
"null",
"number"
]
},
"probes_30d": {
"type": [
"integer",
"null"
]
},
"recomputed": {
"type": "boolean"
},
"scoreRange": {
"type": "object",
"required": [
"low",
"point",
"high"
],
"properties": {
"low": {
"type": "number"
},
"high": {
"type": "integer"
},
"point": {
"type": "number"
}
}
},
"computed_at": {
"type": [
"integer",
"null"
]
},
"description": {
"type": "string"
},
"endpoint_id": {
"type": [
"integer",
"null"
]
},
"serviceName": {
"type": "string"
},
"explanations": {
"type": "array",
"items": {
"type": "string"
}
},
"flagsDetailed": {
"type": "array"
},
"recommendation": {
"type": [
"null",
"string"
]
},
"gradeThresholds": {
"type": "object",
"required": [
"A",
"B",
"C",
"D",
"F"
],
"properties": {
"A": {
"type": "integer"
},
"B": {
"type": "integer"
},
"C": {
"type": "integer"
},
"D": {
"type": "integer"
},
"F": {
"type": "integer"
}
}
},
"confidenceDetail": {
"type": "object",
"required": [
"overall",
"observation",
"economic"
],
"properties": {
"overall": {
"type": "number"
},
"economic": {
"type": "number"
},
"observation": {
"type": "number"
}
}
},
"dataCompleteSince": {
"type": "integer"
}
}
}
},
"requested": {
"type": "integer"
},
"generated_at": {
"type": "integer"
},
"recomputed_ms": {
"type": "integer"
},
"recomputed_count": {
"type": "integer"
},
"recompute_limit_hit": {
"type": "boolean"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "400000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"resources": {
"type": "array",
"required": true,
"description": "List of full x402 resource URLs (https://...) to score. Max = tier size; fewer is allowed; duplicates are ignored."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"flags": "array | undefined",
"found": "boolean",
"grade": "string | undefined",
"score": "number | undefined",
"stats": "object | undefined",
"pending": "boolean | undefined",
"resource": "string",
"breakdown": "object | undefined",
"freshness": "object | undefined",
"probed_at": "number | undefined",
"subscores": "object | undefined",
"templated": "boolean | undefined",
"advertised": "object | null | undefined",
"confidence": "number | undefined",
"probes_30d": "number | undefined",
"recomputed": "boolean | undefined",
"scoreRange": "object | undefined",
"computed_at": "number | undefined",
"description": "string | null | undefined",
"endpoint_id": "number | undefined",
"serviceName": "string | null | undefined",
"explanations": "array | undefined",
"flagsDetailed": "array | undefined",
"recommendation": "string | undefined",
"gradeThresholds": "object | undefined",
"confidenceDetail": "object | undefined",
"dataCompleteSince": "number | null | undefined"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-trust-bulk-200",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Score up to 200 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"resources": [
"https://api.example.com/v1/thing"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"tier": 10,
"results": [
{
"flags": [],
"found": true,
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0x1111111111111111111111111111111111111111",
"delisted": false,
"probes30d": 144,
"payToStale": false,
"probeOk30d": 143,
"firstSeenTs": 1748707200000,
"avgLatencyMs": 210,
"observedDays": 30,
"latencyVantage": "measured from a single EU vantage point; includes network round-trip distance to the endpoint",
"settlements30d": 52,
"payToLastSeenTs": 1751299100000,
"payToSharedWith": 0,
"priceChanges30d": 0,
"settlementAsset": "USDC",
"envelopeValid30d": 144,
"distinctPayers30d": 14,
"settlementDecimals": 6,
"settledVolumeUsd30d": 5.2,
"settledVolumeUnits30d": "5200000"
},
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"age": 0.7,
"uptime": 0.99,
"latency": 0.85,
"activity": 0.6,
"stability": 1,
"compliance": 1
},
"freshness": {
"live": false,
"ageSeconds": 100,
"probedAtTs": 1751299100000
},
"probed_at": 1751299100000,
"subscores": {
"economicConfidence": 0.6,
"specComplianceScore": 100,
"economicReputationScore": 71,
"technicalReliabilityScore": 92
},
"templated": false,
"advertised": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"network": "eip155:8453",
"decimals": 6,
"amountUsd": 0.01,
"observedAtTs": 1751299100000
},
"confidence": 0.82,
"probes_30d": 144,
"recomputed": true,
"scoreRange": {
"low": 82.1,
"high": 90,
"point": 87.4
},
"computed_at": 1751299200000,
"description": "Returns a thing.",
"endpoint_id": 123,
"serviceName": "Example Thing API",
"explanations": [
"High uptime over 144 probes.",
"Consistent 402 envelope compliance."
],
"flagsDetailed": [],
"recommendation": "proceed",
"gradeThresholds": {
"A": 80,
"B": 65,
"C": 50,
"D": 35,
"F": 0
},
"confidenceDetail": {
"overall": 0.82,
"economic": 0.6,
"observation": 0.9
},
"dataCompleteSince": 1748707200000
},
{
"found": false,
"grade": null,
"score": null,
"resource": "https://api.unknown.example/v1/missing",
"probed_at": null,
"confidence": null,
"probes_30d": null,
"recomputed": false,
"computed_at": null,
"endpoint_id": null,
"recommendation": null
}
],
"requested": 2,
"generated_at": 1751299200000,
"recomputed_ms": 420,
"recomputed_count": 1,
"recompute_limit_hit": false
}
}
},
"tags": [
"x402",
"trust",
"bulk",
"score",
"routing"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resources"
],
"properties": {
"resources": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"generated_at",
"tier",
"requested",
"recomputed_count",
"recomputed_ms",
"recompute_limit_hit",
"results"
],
"properties": {
"tier": {
"type": "integer"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"found",
"endpoint_id",
"score",
"grade",
"recommendation",
"confidence",
"probes_30d",
"probed_at",
"computed_at",
"recomputed"
],
"properties": {
"flags": {
"type": "array"
},
"found": {
"type": "boolean"
},
"grade": {
"type": [
"null",
"string"
]
},
"score": {
"type": [
"null",
"number"
]
},
"stats": {
"type": "object",
"required": [
"firstSeenTs",
"observedDays",
"probes30d",
"probeOk30d",
"envelopeValid30d",
"avgLatencyMs",
"latencyVantage",
"priceChanges30d",
"payTo",
"payToLastSeenTs",
"payToStale",
"payToSharedWith",
"settlements30d",
"distinctPayers30d",
"settledVolumeUnits30d",
"settledVolumeUsd30d",
"settlementAsset",
"settlementDecimals",
"delisted"
],
"properties": {
"payTo": {
"type": "string"
},
"delisted": {
"type": "boolean"
},
"probes30d": {
"type": "integer"
},
"payToStale": {
"type": "boolean"
},
"probeOk30d": {
"type": "integer"
},
"firstSeenTs": {
"type": "integer"
},
"avgLatencyMs": {
"type": "integer"
},
"observedDays": {
"type": "integer"
},
"latencyVantage": {
"type": "string"
},
"settlements30d": {
"type": "integer"
},
"payToLastSeenTs": {
"type": "integer"
},
"payToSharedWith": {
"type": "integer"
},
"priceChanges30d": {
"type": "integer"
},
"settlementAsset": {
"type": "string"
},
"envelopeValid30d": {
"type": "integer"
},
"distinctPayers30d": {
"type": "integer"
},
"settlementDecimals": {
"type": "integer"
},
"settledVolumeUsd30d": {
"type": "number"
},
"settledVolumeUnits30d": {
"type": "string"
}
}
},
"resource": {
"type": "string"
},
"breakdown": {
"type": "object",
"required": [
"uptime",
"compliance",
"latency",
"age",
"activity",
"stability"
],
"properties": {
"age": {
"type": "number"
},
"uptime": {
"type": "number"
},
"latency": {
"type": "number"
},
"activity": {
"type": "number"
},
"stability": {
"type": "integer"
},
"compliance": {
"type": "integer"
}
}
},
"freshness": {
"type": "object",
"required": [
"live",
"probedAtTs",
"ageSeconds"
],
"properties": {
"live": {
"type": "boolean"
},
"ageSeconds": {
"type": "integer"
},
"probedAtTs": {
"type": "integer"
}
}
},
"probed_at": {
"type": [
"integer",
"null"
]
},
"subscores": {
"type": "object",
"required": [
"technicalReliabilityScore",
"specComplianceScore",
"economicReputationScore",
"economicConfidence"
],
"properties": {
"economicConfidence": {
"type": "number"
},
"specComplianceScore": {
"type": "integer"
},
"economicReputationScore": {
"type": "integer"
},
"technicalReliabilityScore": {
"type": "integer"
}
}
},
"templated": {
"type": "boolean"
},
"advertised": {
"type": "object",
"required": [
"amount",
"amountUsd",
"asset",
"network",
"decimals",
"observedAtTs"
],
"properties": {
"asset": {
"type": "string"
},
"amount": {
"type": "string"
},
"network": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"amountUsd": {
"type": "number"
},
"observedAtTs": {
"type": "integer"
}
}
},
"confidence": {
"type": [
"null",
"number"
]
},
"probes_30d": {
"type": [
"integer",
"null"
]
},
"recomputed": {
"type": "boolean"
},
"scoreRange": {
"type": "object",
"required": [
"low",
"point",
"high"
],
"properties": {
"low": {
"type": "number"
},
"high": {
"type": "integer"
},
"point": {
"type": "number"
}
}
},
"computed_at": {
"type": [
"integer",
"null"
]
},
"description": {
"type": "string"
},
"endpoint_id": {
"type": [
"integer",
"null"
]
},
"serviceName": {
"type": "string"
},
"explanations": {
"type": "array",
"items": {
"type": "string"
}
},
"flagsDetailed": {
"type": "array"
},
"recommendation": {
"type": [
"null",
"string"
]
},
"gradeThresholds": {
"type": "object",
"required": [
"A",
"B",
"C",
"D",
"F"
],
"properties": {
"A": {
"type": "integer"
},
"B": {
"type": "integer"
},
"C": {
"type": "integer"
},
"D": {
"type": "integer"
},
"F": {
"type": "integer"
}
}
},
"confidenceDetail": {
"type": "object",
"required": [
"overall",
"observation",
"economic"
],
"properties": {
"overall": {
"type": "number"
},
"economic": {
"type": "number"
},
"observation": {
"type": "number"
}
}
},
"dataCompleteSince": {
"type": "integer"
}
}
}
},
"requested": {
"type": "integer"
},
"generated_at": {
"type": "integer"
},
"recomputed_ms": {
"type": "integer"
},
"recomputed_count": {
"type": "integer"
},
"recompute_limit_hit": {
"type": "boolean"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"resources": {
"type": "array",
"required": true,
"description": "List of full x402 resource URLs (https://...) to score. Max = tier size; fewer is allowed; duplicates are ignored."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"flags": "array | undefined",
"found": "boolean",
"grade": "string | undefined",
"score": "number | undefined",
"stats": "object | undefined",
"pending": "boolean | undefined",
"resource": "string",
"breakdown": "object | undefined",
"freshness": "object | undefined",
"probed_at": "number | undefined",
"subscores": "object | undefined",
"templated": "boolean | undefined",
"advertised": "object | null | undefined",
"confidence": "number | undefined",
"probes_30d": "number | undefined",
"recomputed": "boolean | undefined",
"scoreRange": "object | undefined",
"computed_at": "number | undefined",
"description": "string | null | undefined",
"endpoint_id": "number | undefined",
"serviceName": "string | null | undefined",
"explanations": "array | undefined",
"flagsDetailed": "array | undefined",
"recommendation": "string | undefined",
"gradeThresholds": "object | undefined",
"confidenceDetail": "object | undefined",
"dataCompleteSince": "number | null | undefined"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-trust-bulk-500",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Score up to 500 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"resources": [
"https://api.example.com/v1/thing"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"tier": 10,
"results": [
{
"flags": [],
"found": true,
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0x1111111111111111111111111111111111111111",
"delisted": false,
"probes30d": 144,
"payToStale": false,
"probeOk30d": 143,
"firstSeenTs": 1748707200000,
"avgLatencyMs": 210,
"observedDays": 30,
"latencyVantage": "measured from a single EU vantage point; includes network round-trip distance to the endpoint",
"settlements30d": 52,
"payToLastSeenTs": 1751299100000,
"payToSharedWith": 0,
"priceChanges30d": 0,
"settlementAsset": "USDC",
"envelopeValid30d": 144,
"distinctPayers30d": 14,
"settlementDecimals": 6,
"settledVolumeUsd30d": 5.2,
"settledVolumeUnits30d": "5200000"
},
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"age": 0.7,
"uptime": 0.99,
"latency": 0.85,
"activity": 0.6,
"stability": 1,
"compliance": 1
},
"freshness": {
"live": false,
"ageSeconds": 100,
"probedAtTs": 1751299100000
},
"probed_at": 1751299100000,
"subscores": {
"economicConfidence": 0.6,
"specComplianceScore": 100,
"economicReputationScore": 71,
"technicalReliabilityScore": 92
},
"templated": false,
"advertised": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"network": "eip155:8453",
"decimals": 6,
"amountUsd": 0.01,
"observedAtTs": 1751299100000
},
"confidence": 0.82,
"probes_30d": 144,
"recomputed": true,
"scoreRange": {
"low": 82.1,
"high": 90,
"point": 87.4
},
"computed_at": 1751299200000,
"description": "Returns a thing.",
"endpoint_id": 123,
"serviceName": "Example Thing API",
"explanations": [
"High uptime over 144 probes.",
"Consistent 402 envelope compliance."
],
"flagsDetailed": [],
"recommendation": "proceed",
"gradeThresholds": {
"A": 80,
"B": 65,
"C": 50,
"D": 35,
"F": 0
},
"confidenceDetail": {
"overall": 0.82,
"economic": 0.6,
"observation": 0.9
},
"dataCompleteSince": 1748707200000
},
{
"found": false,
"grade": null,
"score": null,
"resource": "https://api.unknown.example/v1/missing",
"probed_at": null,
"confidence": null,
"probes_30d": null,
"recomputed": false,
"computed_at": null,
"endpoint_id": null,
"recommendation": null
}
],
"requested": 2,
"generated_at": 1751299200000,
"recomputed_ms": 420,
"recomputed_count": 1,
"recompute_limit_hit": false
}
}
},
"tags": [
"x402",
"trust",
"bulk",
"score",
"routing"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resources"
],
"properties": {
"resources": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"generated_at",
"tier",
"requested",
"recomputed_count",
"recomputed_ms",
"recompute_limit_hit",
"results"
],
"properties": {
"tier": {
"type": "integer"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"found",
"endpoint_id",
"score",
"grade",
"recommendation",
"confidence",
"probes_30d",
"probed_at",
"computed_at",
"recomputed"
],
"properties": {
"flags": {
"type": "array"
},
"found": {
"type": "boolean"
},
"grade": {
"type": [
"null",
"string"
]
},
"score": {
"type": [
"null",
"number"
]
},
"stats": {
"type": "object",
"required": [
"firstSeenTs",
"observedDays",
"probes30d",
"probeOk30d",
"envelopeValid30d",
"avgLatencyMs",
"latencyVantage",
"priceChanges30d",
"payTo",
"payToLastSeenTs",
"payToStale",
"payToSharedWith",
"settlements30d",
"distinctPayers30d",
"settledVolumeUnits30d",
"settledVolumeUsd30d",
"settlementAsset",
"settlementDecimals",
"delisted"
],
"properties": {
"payTo": {
"type": "string"
},
"delisted": {
"type": "boolean"
},
"probes30d": {
"type": "integer"
},
"payToStale": {
"type": "boolean"
},
"probeOk30d": {
"type": "integer"
},
"firstSeenTs": {
"type": "integer"
},
"avgLatencyMs": {
"type": "integer"
},
"observedDays": {
"type": "integer"
},
"latencyVantage": {
"type": "string"
},
"settlements30d": {
"type": "integer"
},
"payToLastSeenTs": {
"type": "integer"
},
"payToSharedWith": {
"type": "integer"
},
"priceChanges30d": {
"type": "integer"
},
"settlementAsset": {
"type": "string"
},
"envelopeValid30d": {
"type": "integer"
},
"distinctPayers30d": {
"type": "integer"
},
"settlementDecimals": {
"type": "integer"
},
"settledVolumeUsd30d": {
"type": "number"
},
"settledVolumeUnits30d": {
"type": "string"
}
}
},
"resource": {
"type": "string"
},
"breakdown": {
"type": "object",
"required": [
"uptime",
"compliance",
"latency",
"age",
"activity",
"stability"
],
"properties": {
"age": {
"type": "number"
},
"uptime": {
"type": "number"
},
"latency": {
"type": "number"
},
"activity": {
"type": "number"
},
"stability": {
"type": "integer"
},
"compliance": {
"type": "integer"
}
}
},
"freshness": {
"type": "object",
"required": [
"live",
"probedAtTs",
"ageSeconds"
],
"properties": {
"live": {
"type": "boolean"
},
"ageSeconds": {
"type": "integer"
},
"probedAtTs": {
"type": "integer"
}
}
},
"probed_at": {
"type": [
"integer",
"null"
]
},
"subscores": {
"type": "object",
"required": [
"technicalReliabilityScore",
"specComplianceScore",
"economicReputationScore",
"economicConfidence"
],
"properties": {
"economicConfidence": {
"type": "number"
},
"specComplianceScore": {
"type": "integer"
},
"economicReputationScore": {
"type": "integer"
},
"technicalReliabilityScore": {
"type": "integer"
}
}
},
"templated": {
"type": "boolean"
},
"advertised": {
"type": "object",
"required": [
"amount",
"amountUsd",
"asset",
"network",
"decimals",
"observedAtTs"
],
"properties": {
"asset": {
"type": "string"
},
"amount": {
"type": "string"
},
"network": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"amountUsd": {
"type": "number"
},
"observedAtTs": {
"type": "integer"
}
}
},
"confidence": {
"type": [
"null",
"number"
]
},
"probes_30d": {
"type": [
"integer",
"null"
]
},
"recomputed": {
"type": "boolean"
},
"scoreRange": {
"type": "object",
"required": [
"low",
"point",
"high"
],
"properties": {
"low": {
"type": "number"
},
"high": {
"type": "integer"
},
"point": {
"type": "number"
}
}
},
"computed_at": {
"type": [
"integer",
"null"
]
},
"description": {
"type": "string"
},
"endpoint_id": {
"type": [
"integer",
"null"
]
},
"serviceName": {
"type": "string"
},
"explanations": {
"type": "array",
"items": {
"type": "string"
}
},
"flagsDetailed": {
"type": "array"
},
"recommendation": {
"type": [
"null",
"string"
]
},
"gradeThresholds": {
"type": "object",
"required": [
"A",
"B",
"C",
"D",
"F"
],
"properties": {
"A": {
"type": "integer"
},
"B": {
"type": "integer"
},
"C": {
"type": "integer"
},
"D": {
"type": "integer"
},
"F": {
"type": "integer"
}
}
},
"confidenceDetail": {
"type": "object",
"required": [
"overall",
"observation",
"economic"
],
"properties": {
"overall": {
"type": "number"
},
"economic": {
"type": "number"
},
"observation": {
"type": "number"
}
}
},
"dataCompleteSince": {
"type": "integer"
}
}
}
},
"requested": {
"type": "integer"
},
"generated_at": {
"type": "integer"
},
"recomputed_ms": {
"type": "integer"
},
"recomputed_count": {
"type": "integer"
},
"recompute_limit_hit": {
"type": "boolean"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"days": {
"type": "number",
"required": false,
"description": "Lookback window in days (1-90, default 30)."
},
"resource": {
"type": "string",
"required": true,
"description": "Full x402 resource URL exactly as listed in discovery (e.g. https://api.example.com/v1/thing)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"probes": "array",
"resource": "string",
"snapshots": "array"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-history",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Raw observation history for any publicly listed x402 endpoint: discovery snapshots (listed/delisted/relisted, price changes, payTo changes) and probe time-series (uptime, latency, quoted amount) over the requested window (1-90 days).",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"days": 30,
"resource": "https://api.example.com/v1/thing"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"probes": [
{
"amount": "200",
"latencyMs": 312,
"reachable": true,
"probedAtTs": 1782826208450,
"probeStatus": "ok"
}
],
"resource": "https://api.example.com/v1/thing",
"snapshots": [
{
"listed": true,
"source": "bazaar",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xa2477E16dCB42E2AD80f03FE97D7F1a1646cd1c0",
"amount": "200",
"scheme": "exact",
"network": "eip155:8453"
}
],
"observedAtTs": 1782826208450
}
],
"generatedAt": 1782826208450
}
}
},
"tags": [
"x402",
"history",
"monitoring",
"timeseries"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resource",
"days"
],
"properties": {
"days": {
"type": "integer"
},
"resource": {
"type": "string"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"resource",
"generatedAt",
"snapshots",
"probes"
],
"properties": {
"probes": {
"type": "array",
"items": {
"type": "object",
"required": [
"probedAtTs",
"reachable",
"probeStatus",
"latencyMs",
"amount"
],
"properties": {
"amount": {
"type": "string"
},
"latencyMs": {
"type": "integer"
},
"reachable": {
"type": "boolean"
},
"probedAtTs": {
"type": "integer"
},
"probeStatus": {
"type": "string"
}
}
}
},
"resource": {
"type": "string"
},
"snapshots": {
"type": "array",
"items": {
"type": "object",
"required": [
"source",
"observedAtTs",
"listed",
"accepts"
],
"properties": {
"listed": {
"type": "boolean"
},
"source": {
"type": "string"
},
"accepts": {
"type": "array",
"items": {
"type": "object",
"required": [
"scheme",
"network",
"amount",
"asset",
"payTo"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
}
}
}
},
"observedAtTs": {
"type": "integer"
}
}
}
},
"generatedAt": {
"type": "integer"
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"limit": {
"type": "number",
"required": false,
"description": "Max alternatives to return (1-25, default 5)."
},
"resource": {
"type": "string",
"required": true,
"description": "Full x402 resource URL to find better alternatives for (must be in our observation set)."
},
"minScoreDelta": {
"type": "number",
"required": false,
"description": "Minimum trust-score advantage an alternative must have over the subject (default 5)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"count": "number",
"subject": "object",
"resource": "string",
"alternatives": "array"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/similar",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Find better alternatives to an x402 endpoint. Given a resource URL, returns the top semantically-similar endpoints (matched on advertised purpose via description embeddings) that currently OUT-SCORE it on our deterministic trust score — so an agent about to pay a mediocre endpoint can discover a more reliable, better-settled one serving the same function. Each result carries its trust score, grade, cosine similarity, advertised price and free endpoint-page URL. Same-host siblings and 'avoid'-flagged endpoints are excluded. Returns an empty list (still a valid answer) when nothing beats the subject.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"limit": 5,
"resource": "https://api.example.com/v1/thing"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"note": "Semantically similar endpoints that out-score the subject. Similarity is cosine over description embeddings.",
"count": 2,
"subject": {
"grade": "C",
"score": 61.2,
"vectorized": true,
"inObservationSet": true
},
"resource": "https://api.example.com/v1/thing",
"alternatives": [
{
"grade": "A",
"score": 88.1,
"network": "eip155:8453",
"resource": "https://api.better.com/v1/thing",
"amountUsd": 0.001,
"similarity": 0.912,
"endpointPage": "https://x402.fuchss.app/endpoint/12345",
"recommendation": "proceed"
}
]
}
}
},
"tags": [
"x402",
"similar",
"discovery",
"routing",
"score"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"resource",
"limit"
],
"properties": {
"limit": {
"type": "integer"
},
"resource": {
"type": "string"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"resource",
"subject",
"count",
"alternatives",
"note"
],
"properties": {
"note": {
"type": "string"
},
"count": {
"type": "integer"
},
"subject": {
"type": "object",
"required": [
"score",
"grade",
"inObservationSet",
"vectorized"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"vectorized": {
"type": "boolean"
},
"inObservationSet": {
"type": "boolean"
}
}
},
"resource": {
"type": "string"
},
"alternatives": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"score",
"grade",
"recommendation",
"similarity",
"amountUsd",
"network",
"endpointPage"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"network": {
"type": "string"
},
"resource": {
"type": "string"
},
"amountUsd": {
"type": "number"
},
"similarity": {
"type": "number"
},
"endpointPage": {
"type": "string"
},
"recommendation": {
"type": "string"
}
}
}
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "11673",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"txHash": {
"type": "string",
"required": true,
"description": "0x-prefixed 32-byte transaction hash of an EIP-3009 settlement tx."
},
"network": {
"type": "string",
"required": false,
"description": "Venice RPC network slug (default base-mainnet). One of: base-mainnet, ethereum-mainnet, arbitrum-mainnet, optimism-mainnet, polygon-mainnet."
},
"hintResource": {
"type": "string",
"required": false,
"description": "Optional x402 resource URL the caller believes this payment was for. The server will cross-check our local ledger and surface a match/mismatch in the output."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"model": "string",
"route": "object",
"trace": "object",
"txHash": "string",
"network": "string",
"payment": "object"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/x402-payment-trace",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "x402 payment trace. POST a 0x-prefixed 32-byte tx hash that settled an EIP-3009 transferWithAuthorization or receiveWithAuthorization. The tx + receipt are fetched, the ERC20 Transfer log is decoded, the EIP-3009 selector and payer/payee/amount are extracted, and if the payment was to this reseller the local ledger is cross-checked. Returns schema-pinned JSON: {summary, payment{settled,payer,payee,amountUsd,token,selectorUsed}, route{x402Resource,reseller,knownTo,ourLedgerMatch}, trace{txHash,blockNumber,gasUsed}, observations[], riskFlags[{title,severity,evidence}]}. Multi-chain: base/eth/arb/op/polygon.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"txHash": "0x384c5adf64e87fadc0b176005c49051cdc192d5c28b0158c05c3e9251a01d556",
"network": "base-mainnet"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"model": "llama-3.3-70b",
"route": {
"knownTo": [
"cdp"
],
"reseller": "x402.fuchss.app",
"x402Resource": "https://x402.fuchss.app/v1/x402-trust",
"ourLedgerMatch": true
},
"trace": {
"txHash": "0x384c5adf64e87fadc0b176005c49051cdc192d5c28b0158c05c3e9251a01d556",
"gasUsed": "85000",
"blockNumber": 12345678
},
"txHash": "0x384c5adf64e87fadc0b176005c49051cdc192d5c28b0158c05c3e9251a01d556",
"network": "base-mainnet",
"payment": {
"payee": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"payer": "0x1e82de8B9d2b12b86b2E11EAC29A36140543C451",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"settled": true,
"amountUsd": "0.005",
"selectorUsed": "transferWithAuthorization"
}
}
}
},
"tags": [
"x402",
"payment",
"trace",
"security",
"forensics"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"txHash",
"network"
],
"properties": {
"txHash": {
"type": "string"
},
"network": {
"type": "string"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"txHash",
"network",
"model",
"payment",
"route",
"trace"
],
"properties": {
"model": {
"type": "string"
},
"route": {
"type": "object",
"required": [
"x402Resource",
"reseller",
"knownTo",
"ourLedgerMatch"
],
"properties": {
"knownTo": {
"type": "array",
"items": {
"type": "string"
}
},
"reseller": {
"type": "string"
},
"x402Resource": {
"type": "string"
},
"ourLedgerMatch": {
"type": "boolean"
}
}
},
"trace": {
"type": "object",
"required": [
"txHash",
"blockNumber",
"gasUsed"
],
"properties": {
"txHash": {
"type": "string"
},
"gasUsed": {
"type": "string"
},
"blockNumber": {
"type": "integer"
}
}
},
"txHash": {
"type": "string"
},
"network": {
"type": "string"
},
"payment": {
"type": "object",
"required": [
"settled",
"payer",
"payee",
"amountUsd",
"token",
"selectorUsed"
],
"properties": {
"payee": {
"type": "string"
},
"payer": {
"type": "string"
},
"token": {
"type": "string"
},
"settled": {
"type": "boolean"
},
"amountUsd": {
"type": "string"
},
"selectorUsed": {
"type": "string"
}
}
}
}
}
}
}
}
},
"category": "security",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"events": {
"type": "array",
"required": false,
"description": "Event types to subscribe to (default all): payto_change, price_change, asset_network_change, spec_regression, delisting, liveness_down, liveness_recovered, liveness_flapping."
},
"delivery": {
"type": "object",
"required": false,
"description": "Optional push delivery: { webhook_url(s), slack_url(s) } (https public hosts, max 5 each). Each field accepts a single URL string or an array of URLs; webhook_url(s) = signed HTTPS webhook; slack_url(s) = Slack or Discord incoming webhook. All URLs are connection-tested before you're charged. Polling is always available."
},
"endpoint": {
"type": "string",
"required": true,
"description": "Full x402 resource URL to watch (must be in our observation set)."
},
"liveness_sensitivity_n": {
"type": "number",
"required": false,
"description": "Consecutive missed probes before a liveness_down is surfaced to you (1=paranoid … 10=relaxed; default 2)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"secret": "string",
"watched": "array",
"delivery": "object",
"edit_url": "string",
"poll_url": "string",
"watch_id": "string",
"renew_url": "string",
"cancel_url": "string",
"expires_at": "number",
"next_steps": "array",
"subscribed_events": "array | 'all'",
"probe_interval_sec": "number",
"liveness_sensitivity_n": "number"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402.fuchss.app/v1/watch-endpoint-30d",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402.fuchss.app/favicon.svg",
"mimeType": "application/json",
"description": "Monitor ONE x402 endpoint for 30 days and get alerted on changes that break agents: payTo changes (critical — possible takeover/rug), price changes, asset/network changes, 402-spec regressions, delisting, and liveness (down/recovered). Account-free: pay, receive a one-time secret + poll URL. Push to multiple signed HTTPS webhooks and/or Slack/Discord incoming webhooks (up to 5 each per watch). Every push URL is connection-tested before payment — unreachable URLs are rejected with no charge. Edit URLs or cancel early for free via bearer-authed PATCH/DELETE /v1/watch/{id}. Poll the append-only event log; nothing is lost between polls.",
"providerUrl": "https://x402.fuchss.app",
"serviceName": "x402.fuchss.app — x402 Trust & Reliability"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"events": [
"payto_change",
"price_change",
"delisting"
],
"delivery": {
"slack_url": "https://hooks.slack.com/services/…",
"webhook_urls": [
"https://your-app.example.com/x402-alerts",
"https://backup.example.com/x402-alerts"
]
},
"endpoint": "https://api.example.com/v1/thing",
"liveness_sensitivity_n": 2
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"secret": "wsk_… (shown once — store it now)",
"watched": [
{
"resource": "https://api.example.com/v1/thing",
"endpoint_id": 123
}
],
"delivery": {
"poll": true,
"slack": [],
"webhook": [
"https://your-app.example.com/x402-alerts"
]
},
"edit_url": "/v1/watch/01J8Z9K7X4QmY9example",
"poll_url": "/v1/watch/01J8Z9K7X4QmY9example/events",
"watch_id": "01J8Z9K7X4Qmy9example",
"renew_url": "/v1/watch/01J8Z9K7X4QmY9example/renew",
"cancel_url": "/v1/watch/01J8Z9K7X4QmY9example",
"expires_at": 1751328000000,
"next_steps": [
{
"step": 1,
"action": "store_secret",
"details": "Store `secret` in a secrets manager. It is shown only once; we only store its SHA-256 hash."
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example/events",
"step": 2,
"action": "poll_events",
"method": "GET",
"details": "Read the append-only event log. Nothing that happened between two polls is lost.",
"headers": {
"Authorization": "Bearer wsk_…"
},
"cursor_hint": "Start without `since`; then use the highest returned `event_id` as the next `since` value.",
"cursor_param": "since"
},
{
"step": 3,
"action": "verify_webhook",
"details": "If you configured webhook_url(s), verify every incoming POST: the `x-signature` header must equal `sha256=` + HMAC-SHA256(body) keyed by hex(sha256(secret)) (NOT the raw secret). A `connection_test` ping is sent during setup — see delivery.connection_test.",
"enabled": true
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example",
"step": 4,
"action": "edit",
"method": "PATCH",
"details": "Change webhook/Slack URLs, liveness sensitivity, or subscribed events for free. PATCH with Authorization: Bearer <secret>; new URLs are connection-tested.",
"headers": {
"Authorization": "Bearer wsk_…"
}
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example",
"step": 5,
"action": "cancel",
"method": "DELETE",
"details": "Stop monitoring early (probing drops to normal cadence immediately). Free, bearer-authed.",
"headers": {
"Authorization": "Bearer wsk_…"
}
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example/renew",
"step": 6,
"action": "renew",
"method": "POST",
"details": "Extend the watch by 30 days before expires_at. The secret stays the same."
}
],
"subscribed_events": "all",
"probe_interval_sec": 300,
"liveness_sensitivity_n": 2
}
}
},
"tags": [
"x402",
"watch",
"monitoring",
"alerts"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"endpoint",
"events",
"liveness_sensitivity_n",
"delivery"
],
"properties": {
"events": {
"type": "array",
"items": {
"type": "string"
}
},
"delivery": {
"type": "object",
"required": [
"webhook_urls",
"slack_url"
],
"properties": {
"slack_url": {
"type": "string"
},
"webhook_urls": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"endpoint": {
"type": "string"
},
"liveness_sensitivity_n": {
"type": "integer"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"watch_id",
"secret",
"poll_url",
"renew_url",
"edit_url",
"cancel_url",
"expires_at",
"watched",
"probe_interval_sec",
"subscribed_events",
"liveness_sensitivity_n",
"delivery",
"next_steps"
],
"properties": {
"secret": {
"type": "string"
},
"watched": {
"type": "array",
"items": {
"type": "object",
"required": [
"endpoint_id",
"resource"
],
"properties": {
"resource": {
"type": "string"
},
"endpoint_id": {
"type": "integer"
}
}
}
},
"delivery": {
"type": "object",
"required": [
"poll",
"webhook",
"slack"
],
"properties": {
"poll": {
"type": "boolean"
},
"slack": {
"type": "array"
},
"webhook": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"edit_url": {
"type": "string"
},
"poll_url": {
"type": "string"
},
"watch_id": {
"type": "string"
},
"renew_url": {
"type": "string"
},
"cancel_url": {
"type": "string"
},
"expires_at": {
"type": "integer"
},
"next_steps": {
"type": "array",
"items": {
"type": "object",
"required": [
"step",
"action",
"details"
],
"properties": {
"url": {
"type": "string"
},
"step": {
"type": "integer"
},
"action": {
"type": "string"
},
"method": {
"type": "string"
},
"details": {
"type": "string"
},
"enabled": {
"type": "boolean"
},
"headers": {
"type": "object",
"required": [
"Authorization"
],
"properties": {
"Authorization": {
"type": "string"
}
}
},
"cursor_hint": {
"type": "string"
},
"cursor_param": {
"type": "string"
}
}
}
},
"subscribed_events": {
"type": "string"
},
"probe_interval_sec": {
"type": "integer"
},
"liveness_sensitivity_n": {
"type": "integer"
}
}
}
}
}
}
},
"category": "monitoring",
"discoverable": true
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/x402-trust-prober/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
UPTIME
90D UPTIME 99%
RESPONSE TIME
AVG RESP 386ms
PRICE (captured 402, USD)
Median across 10 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
PILLARS OVER TIME (measured)
price percentile in Verification
site signals present (of 6)
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-07-25 · last up 2026-09-29
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● SLOW 790ms
● OK 578ms
● SLOW 612ms
● OK 361ms
● SLOW 652ms
● SLOW 682ms
● SLOW 660ms
● OK 524ms
● OK 536ms
● SLOW 601ms
● OK 521ms
● SLOW 649ms
● OK 503ms
● OK 572ms
● OK 530ms
● OK 437ms
● SLOW 602ms
● SLOW 634ms
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/x402-trust-prober?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/x402-trust-prober.svg" alt="x402 Trust Prober listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/x402-trust-prober?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/x402-trust-prober?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/x402-trust-prober.svg?data=uptime" alt="x402 Trust Prober uptime on x402-list" height="28"> </a>