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ARAKEL Machine Evidence Network
Verification PAYMENT-READYpayment-ready until 2026-10-02
ARAKEL Machine Evidence Network provides official-source evidence plus x402 transaction proof, receipt verification, payment risk checks, and AP2 agent-trust verification.
Pay from $0.001 to $0.03 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
measured since 2026-08-31 (start of our harvest window) · $0.14 all-time · settled via payAI
paid probe: delivered (HTTP 200) on 2026-09-19
VERDICT
ranking generation 3solid 76/100 #89 of 113 in Verification by measured score
What the score read on this service: status offline, 97.4% uptime 30d, 380ms response p95, x402 compliance 14 of 14, $0.001 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 6h 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 97.4%
- uptime · latest daily rollup
- 0%
- uptime 7d
- 93.1%
- uptime 30d
- 97.4%
- uptime 90d
- 97.4%
- response p95
- 380ms
- avg response
- 568ms
- total checks
- 1,637
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 $0.001 to $0.03 (p7 in Verification)
- price (min)
- $0.001
- price (max)
- $0.03
- category percentile (min)
- p7 in Verification
- category percentile (max)
- p35 in Verification
- endpoints / prices
- 9 / 5
- 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
- 31d
- registrar
- Registrar of Domain Names REG.RU LLC
- hosting
- custom
- domain created
- 2026-08-27
Identity facts, not a risk score.
traction $0.113 30d · 9 buyers
- volume 30d
- $0.113
- buyers 30d
- 9
- settlements 30d
- 14
- measured since
- 2026-08-31 (start of our harvest window)
- last settlement
- 2026-09-25
- top buyer share
- 58% of 30d volume (address, not entity)
- trend 7d vs 30d
- 0.57x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $0.14
- settlements all-time
- 14
- median settlement 30d
- $0.005
- max settlement 30d
- $0.05
- settled via
- payAI ($0.11, 14 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.
CHANGES
2 in 30dPayout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.
changes schema changed 8d ago (2 in 30d)
schema changed · 8d ago
endpoint added POST /v1/ap2/agent-authority-check
endpoint added POST /v1/ap2/payment-receipt-verify
endpoint added POST /v1/x402/payment-risk-check
endpoint added POST /v1/x402/receipt-verify
endpoint added POST /v1/x402/transaction-proof
schema added POST /v1/ap2/agent-authority-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema added POST /v1/ap2/payment-receipt-verify exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema added POST /v1/x402/payment-risk-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema added POST /v1/x402/receipt-verify exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema added POST /v1/x402/transaction-proof exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema changed · 14d ago
endpoint added GET /v1/counterparty-government-check
endpoint added GET /v1/federal-register-search
endpoint added GET /v1/ofac-sanctions-screening
schema added GET /v1/counterparty-government-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema added GET /v1/federal-register-search exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
schema added GET /v1/ofac-sanctions-screening exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| POST | /v1/ap2/agent-authority-check | $0.005 | Base | USDC | header | |
| POST | /v1/ap2/payment-receipt-verify | $0.003 | Base | USDC | header | |
| GET | /v1/counterparty-government-check | $0.03 | Base | USDC | header | |
| GET | /v1/federal-register-search | $0.005 | Base | USDC | header | |
| POST | /v1/machine/batch-quick-check | $0.025 | Base | USDC | header | |
| GET | /v1/ofac-sanctions-screening | $0.005 | Base | USDC | header | |
| POST | /v1/x402/payment-risk-check | $0.005 | Base | USDC | header | |
| POST | /v1/x402/receipt-verify | $0.003 | Base | USDC | header | |
| POST | /v1/x402/transaction-proof | $0.001 | Base | USDC | header |
9 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/counterparty-government-check returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://proof.arakelproof.space/v1/counterparty-government-check'
// 402 response (captured by monitor) · 9 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/federal-register-search",
"tags": [
"government-data",
"official-source",
"evidence",
"verification",
"federal-register"
],
"mimeType": "application/json",
"description": "Federal Register search by topic, entity, rule, notice, order, or publication term with signed official evidence.",
"serviceName": "ARAKEL Machine Evidence Network"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "artificial intelligence"
}
},
"output": {
"type": "json",
"example": {
"result": "OBSERVED|NOT_OBSERVED|INCONCLUSIVE",
"schema": "arakel.machine-evidence.v2",
"source": {
"id": "federal-register"
},
"evidence": [
{}
],
"signature": {
"alg": "Ed25519"
},
"observed_count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Federal Register search by topic, entity, rule, notice, order, or publication term with signed official evidence."
},
"to": {
"type": "string",
"format": "date-time",
"description": "Optional UTC end. Defaults to now."
},
"from": {
"type": "string",
"format": "date-time",
"description": "Optional UTC start. Defaults to the last 90 days."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/counterparty-government-check",
"tags": [
"government-data",
"official-source",
"evidence",
"verification",
"compliance"
],
"mimeType": "application/json",
"description": "Counterparty government check across OFAC sanctions, FDA recalls, USAspending federal awards, and Federal Register evidence.",
"serviceName": "ARAKEL Machine Evidence Network"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "example company"
}
},
"output": {
"type": "json",
"example": {
"result": "OBSERVED|NOT_OBSERVED|INCONCLUSIVE",
"schema": "arakel.counterparty-government-check.v1",
"sources": [
{
"id": "ofac",
"result": "NOT_OBSERVED"
}
],
"signature": {
"alg": "Ed25519"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Company, organization, person, or counterparty name"
},
"to": {
"type": "string",
"format": "date-time",
"description": "Optional UTC end; defaults to now"
},
"from": {
"type": "string",
"format": "date-time",
"description": "Optional UTC start; defaults to one year ago"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/ofac-sanctions-screening",
"tags": [
"government-data",
"official-source",
"evidence",
"verification",
"ofac"
],
"mimeType": "application/json",
"description": "OFAC sanctions screening by person or company name against official SDN and consolidated sanctions snapshots.",
"serviceName": "ARAKEL Machine Evidence Network"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "example company"
}
},
"output": {
"type": "json",
"example": {
"result": "OBSERVED|NOT_OBSERVED|INCONCLUSIVE",
"schema": "arakel.machine-evidence.v2",
"source": {
"id": "ofac"
},
"evidence": [
{}
],
"signature": {
"alg": "Ed25519"
},
"observed_count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "OFAC sanctions screening by person or company name against official SDN and consolidated sanctions snapshots."
},
"to": {
"type": "string",
"format": "date-time",
"description": "Optional UTC end. Defaults to now."
},
"from": {
"type": "string",
"format": "date-time",
"description": "Optional UTC start. Defaults to the last 1 days."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "25000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/machine/batch-quick-check",
"tags": [
"government-data",
"official-source",
"evidence",
"verification",
"compliance"
],
"mimeType": "application/json",
"description": "Batch 2-10 signed quick checks. Payment only when every item is conclusive.",
"serviceName": "ARAKEL Machine Evidence Network"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"to": "2026-08-31T23:59:59Z",
"from": "2026-08-31T00:00:00Z",
"entity": "example entity",
"source": "ofac"
},
{
"to": "2026-08-31T23:59:59Z",
"from": "2026-08-31T00:00:00Z",
"entity": "example entity",
"source": "fda"
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"schema": "arakel.batch-quick-check.v1",
"signature": {
"alg": "Ed25519"
},
"items_count": 2,
"all_conclusive": true
}
}
},
"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": {
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object"
},
"maxItems": 10,
"minItems": 2
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/x402/transaction-proof",
"tags": [
"x402",
"payments",
"verification",
"base",
"usdc",
"agentic-commerce",
"transaction_proof"
],
"mimeType": "application/json",
"description": "Verify an existing Base USDC transaction against expected payer, payee, amount, status, and confirmations. Returns a signed ARAKEL proof. WHY PAY: Pay for an independent signed proof that the Base USDC transaction matches the expected payment terms before releasing a paid result or continuing an automated workflow. RESULT AFTER PAYMENT: Signed JSON with proof_id, tx status, confirmations, expected-vs-observed payment checks, matching USDC transfer and Ed25519 ARAKEL signature.",
"serviceName": "ARAKEL x402 Transaction Proof"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"tx": "0x0000000000000000000000000000000000000000000000000000000000000000",
"expected_payee": "0x1111111111111111111111111111111111111111",
"min_confirmations": 1,
"expected_amount_usdc": "0.005"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"checks": {
"payee_matches": true,
"amount_matches": true,
"transaction_found": true,
"transaction_success": true,
"confirmations_sufficient": true
},
"schema": "arakel.x402.transaction-proof.v1",
"decision": "VERIFIED",
"verified": true,
"signature": {
"alg": "Ed25519"
}
}
}
},
"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": {
"anyOf": [
{
"required": [
"expected_amount_usdc"
]
},
{
"required": [
"expected_amount_atomic"
]
}
],
"required": [
"tx",
"expected_payee"
],
"properties": {
"tx": {
"type": "string",
"description": "Base transaction hash"
},
"service_id": {
"type": "string"
},
"request_hash": {
"type": "string",
"description": "SHA-256 style 32-byte request hash for receipt binding"
},
"response_hash": {
"type": "string",
"description": "SHA-256 style 32-byte response hash for receipt binding"
},
"expected_payee": {
"type": "string",
"description": "Expected USDC recipient"
},
"expected_payer": {
"type": "string",
"description": "Optional expected USDC payer"
},
"min_confirmations": {
"type": "integer",
"maximum": 200,
"minimum": 1
},
"expected_amount_usdc": {
"type": "string",
"description": "Expected USDC decimal amount; provide this or expected_amount_atomic"
},
"expected_amount_atomic": {
"type": "string",
"description": "Expected USDC amount in 6-decimal atomic units; provide this or expected_amount_usdc"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/x402/receipt-verify",
"tags": [
"x402",
"payments",
"verification",
"base",
"usdc",
"agentic-commerce",
"receipt_verify"
],
"mimeType": "application/json",
"description": "Verify an x402 paid API receipt by validating the existing Base USDC payment and signing a binding to caller-supplied request_hash, response_hash, and service_id. WHY PAY: Pay for an auditable signed paid-API receipt so another machine can verify which request and response were associated with the settled x402 payment. RESULT AFTER PAYMENT: Signed JSON binding request_hash and response_hash to a verified Base USDC payment, service_id and ARAKEL Ed25519 signature.",
"serviceName": "ARAKEL x402 Transaction Proof"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"tx": "0x0000000000000000000000000000000000000000000000000000000000000000",
"service_id": "example-service",
"request_hash": "0x2222222222222222222222222222222222222222222222222222222222222222",
"response_hash": "0x3333333333333333333333333333333333333333333333333333333333333333",
"expected_payee": "0x1111111111111111111111111111111111111111",
"expected_amount_usdc": "0.005"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"schema": "arakel.x402.receipt-verify.v1",
"payment": {
"decision": "VERIFIED",
"verified": true
},
"decision": "VERIFIED",
"verified": true,
"signature": {
"alg": "Ed25519"
},
"request_hash": "0x…",
"response_hash": "0x…"
}
}
},
"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": {
"anyOf": [
{
"required": [
"expected_amount_usdc"
]
},
{
"required": [
"expected_amount_atomic"
]
}
],
"required": [
"tx",
"expected_payee",
"request_hash",
"response_hash"
],
"properties": {
"tx": {
"type": "string",
"description": "Base transaction hash"
},
"service_id": {
"type": "string"
},
"request_hash": {
"type": "string",
"description": "SHA-256 style 32-byte request hash for receipt binding"
},
"response_hash": {
"type": "string",
"description": "SHA-256 style 32-byte response hash for receipt binding"
},
"expected_payee": {
"type": "string",
"description": "Expected USDC recipient"
},
"expected_payer": {
"type": "string",
"description": "Optional expected USDC payer"
},
"min_confirmations": {
"type": "integer",
"maximum": 200,
"minimum": 1
},
"expected_amount_usdc": {
"type": "string",
"description": "Expected USDC decimal amount; provide this or expected_amount_atomic"
},
"expected_amount_atomic": {
"type": "string",
"description": "Expected USDC amount in 6-decimal atomic units; provide this or expected_amount_usdc"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/x402/payment-risk-check",
"tags": [
"x402",
"payments",
"verification",
"base",
"usdc",
"agentic-commerce",
"payment_risk_check"
],
"mimeType": "application/json",
"description": "Check an existing Base USDC payment for payee, payer, amount, status, confirmation, and ambiguity mismatches. WHY PAY: Pay for a deterministic machine-readable risk result before trusting or acting on a claimed x402 payment. RESULT AFTER PAYMENT: Signed JSON with risk_score, risk_level, mismatch flags and the underlying Base USDC payment verification.",
"serviceName": "ARAKEL x402 Transaction Proof"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"tx": "0x0000000000000000000000000000000000000000000000000000000000000000",
"expected_payee": "0x1111111111111111111111111111111111111111",
"min_confirmations": 1,
"expected_amount_usdc": "0.005"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"flags": [],
"schema": "arakel.x402.payment-risk-check.v1",
"payment": {
"decision": "VERIFIED",
"verified": true
},
"signature": {
"alg": "Ed25519"
},
"risk_level": "low",
"risk_score": 0
}
}
},
"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": {
"anyOf": [
{
"required": [
"expected_amount_usdc"
]
},
{
"required": [
"expected_amount_atomic"
]
}
],
"required": [
"tx",
"expected_payee"
],
"properties": {
"tx": {
"type": "string",
"description": "Base transaction hash"
},
"service_id": {
"type": "string"
},
"request_hash": {
"type": "string",
"description": "SHA-256 style 32-byte request hash for receipt binding"
},
"response_hash": {
"type": "string",
"description": "SHA-256 style 32-byte response hash for receipt binding"
},
"expected_payee": {
"type": "string",
"description": "Expected USDC recipient"
},
"expected_payer": {
"type": "string",
"description": "Optional expected USDC payer"
},
"min_confirmations": {
"type": "integer",
"maximum": 200,
"minimum": 1
},
"expected_amount_usdc": {
"type": "string",
"description": "Expected USDC decimal amount; provide this or expected_amount_atomic"
},
"expected_amount_atomic": {
"type": "string",
"description": "Expected USDC amount in 6-decimal atomic units; provide this or expected_amount_usdc"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/ap2/agent-authority-check",
"tags": [
"ap2",
"agentic-payments",
"verification",
"agent-trust",
"agent_authority"
],
"mimeType": "application/json",
"description": "Verify an AP2 payment mandate delegation chain under a caller-supplied trusted P-256 root, enforce final aud/nonce, and evaluate supported payment constraints. WHY PAY: Pay for a cryptographic decision on whether the supplied AP2 mandate chain authorizes the requested agent payment under the caller-trusted root and supported constraints. RESULT AFTER PAYMENT: Signed JSON with chain validation, mandate details, supported constraint results, VERIFIED/REJECTED/UNRESOLVED decision and ARAKEL Ed25519 signature.",
"serviceName": "ARAKEL AP2 Agent Trust"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"expected_aud": "merchant.example",
"mandate_chain": "<open SD-JWT>~~<closed KB-SD-JWT>",
"expected_nonce": "challenge",
"trusted_root_jwk": {
"x": "...",
"y": "...",
"crv": "P-256",
"kty": "EC"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"schema": "arakel.ap2.agent-authority-check.v1",
"decision": "VERIFIED_UNDER_SUPPLIED_ROOT",
"signature": {
"alg": "Ed25519"
},
"constraints": {
"passed": true,
"unresolved": [],
"violations": []
},
"verified_under_supplied_root": true
}
}
},
"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": {
"required": [
"mandate_chain",
"trusted_root_jwk",
"expected_aud",
"expected_nonce"
],
"properties": {
"issuer_jwk": {
"type": "object",
"description": "Caller-trusted receipt issuer P-256 public JWK"
},
"receipt_jwt": {
"type": "string",
"description": "AP2 ES256 Payment Receipt JWT"
},
"expected_aud": {
"type": "string"
},
"mandate_chain": {
"type": "string",
"description": "AP2 dSD-JWT mandate chain; for receipt verification provide this or expected_reference"
},
"expected_nonce": {
"type": "string"
},
"mandate_context": {
"type": "object"
},
"trusted_root_jwk": {
"type": "object",
"description": "Caller-trusted P-256 root public JWK"
},
"expected_reference": {
"type": "string",
"description": "For receipt verification provide this or mandate_chain"
},
"expected_transaction_id": {
"type": "string"
},
"expected_open_checkout_hash": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://proof.arakelproof.space/v1/ap2/payment-receipt-verify",
"tags": [
"ap2",
"agentic-payments",
"verification",
"agent-trust",
"payment_receipt_verify"
],
"mimeType": "application/json",
"description": "Verify an AP2 Payment Receipt ES256 JWT and bind its reference to the supplied closed mandate chain or expected reference. WHY PAY: Pay for a signed verification that the AP2 Payment Receipt is cryptographically valid under the supplied issuer key and references the expected closed mandate. RESULT AFTER PAYMENT: Signed JSON with receipt signature/reference checks, VERIFIED/REJECTED decision and ARAKEL Ed25519 signature.",
"serviceName": "ARAKEL AP2 Agent Trust"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"issuer_jwk": {
"x": "...",
"y": "...",
"crv": "P-256",
"kty": "EC"
},
"receipt_jwt": "<ES256 compact JWT>",
"mandate_chain": "<open>~~<closed>"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"schema": "arakel.ap2.payment-receipt-verify.v1",
"decision": "VERIFIED_UNDER_SUPPLIED_ISSUER_KEY",
"signature": {
"alg": "Ed25519"
},
"verified_under_supplied_issuer_key": true
}
}
},
"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": {
"anyOf": [
{
"required": [
"mandate_chain"
]
},
{
"required": [
"expected_reference"
]
}
],
"required": [
"receipt_jwt",
"issuer_jwk"
],
"properties": {
"issuer_jwk": {
"type": "object",
"description": "Caller-trusted receipt issuer P-256 public JWK"
},
"receipt_jwt": {
"type": "string",
"description": "AP2 ES256 Payment Receipt JWT"
},
"expected_aud": {
"type": "string"
},
"mandate_chain": {
"type": "string",
"description": "AP2 dSD-JWT mandate chain; for receipt verification provide this or expected_reference"
},
"expected_nonce": {
"type": "string"
},
"mandate_context": {
"type": "object"
},
"trusted_root_jwk": {
"type": "object",
"description": "Caller-trusted P-256 root public JWK"
},
"expected_reference": {
"type": "string",
"description": "For receipt verification provide this or mandate_chain"
},
"expected_transaction_id": {
"type": "string"
},
"expected_open_checkout_hash": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"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/arakel-machine-evidence-network/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 97.4%
RESPONSE TIME
AVG RESP 568ms
PRICE (captured 402, USD)
Median across 9 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 2026-09-21 · last up 2026-09-25
- 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
○ DOWN 121ms bad_status: unexpected HTTP 530
○ DOWN 396ms bad_status: unexpected HTTP 530
○ DOWN 25ms bad_status: unexpected HTTP 530
○ DOWN 29ms bad_status: unexpected HTTP 530
○ DOWN 22ms bad_status: unexpected HTTP 530
○ DOWN 182ms bad_status: unexpected HTTP 530
○ DOWN 138ms bad_status: unexpected HTTP 530
○ DOWN 52ms bad_status: unexpected HTTP 530
○ DOWN 22ms bad_status: unexpected HTTP 530
○ DOWN 270ms bad_status: unexpected HTTP 530
○ DOWN 220ms bad_status: unexpected HTTP 530
○ DOWN 255ms bad_status: unexpected HTTP 530
○ DOWN 214ms bad_status: unexpected HTTP 530
○ DOWN 29ms bad_status: unexpected HTTP 530
○ DOWN 21ms bad_status: unexpected HTTP 530
○ DOWN 31ms bad_status: unexpected HTTP 530
○ DOWN 210ms bad_status: unexpected HTTP 530
○ DOWN 238ms bad_status: unexpected HTTP 530
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/arakel-machine-evidence-network?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/arakel-machine-evidence-network.svg" alt="ARAKEL Machine Evidence Network listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/arakel-machine-evidence-network?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/arakel-machine-evidence-network?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/arakel-machine-evidence-network.svg?data=uptime" alt="ARAKEL Machine Evidence Network uptime on x402-list" height="28"> </a>