Norravex x402 Endpoint Audit
VerificationDeterministic conformance and safety audit for public x402 HTTP 402 responses, with URL and payload modes, scored findings, and remediation.
Pay from $0.10 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-07-28 · no on-chain settlement recorded yet
ASSESSMENT
updated 6h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 27.4%
- uptime 24h
- 0%
- uptime 7d
- 0%
- uptime 30d
- 27.4%
- uptime 90d
- 27.4%
- response p95
- 1316ms
- avg response
- 631ms
- total checks
- 654
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14), stale (probe failing)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.10 (p75 in Verification)
- price (min)
- $0.10
- category percentile (min)
- p75 in Verification
- endpoints / prices
- 1 / 1
- model
- flat
- 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
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- first settlement
- ---
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides an audit service for x402 endpoints
- category
- endpoint-audit
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/x402/audit | $0.10 | Base | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/x402/audit returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://norravex.com/api/x402/audit'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8a874F1e1ED23835e2816543E0A1d7Cd3FA3ff1a",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://norravex.com/api/x402/audit",
"mimeType": "application/json",
"description": "A fresh deterministic x402 endpoint conformance and safety audit"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://api.example.com/paid",
"mode": "url"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"score": 100,
"verdict": "pass",
"fingerprint": "sha256:0000000000000000000000000000000000000000000000000000000000000000",
"audit_version": "1.0.0"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"oneOf": [
{
"type": "object",
"required": [
"mode",
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Public HTTPS endpoint to inspect"
},
"mode": {
"const": "url"
}
},
"additionalProperties": false
},
{
"type": "object",
"required": [
"mode",
"status",
"headers",
"body",
"resource_url"
],
"properties": {
"body": {},
"mode": {
"const": "payload"
},
"status": {
"const": 402
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"resource_url": {
"type": "string"
}
},
"additionalProperties": false
}
]
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"audit_version",
"verdict",
"score",
"fingerprint"
]
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/norravex-x402-endpoint-audit/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.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
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.
COMPLIANCE
14/14 checks pass · grade A · stale (probe failing)last 402 captured 2026-07-28 · last up 2026-07-30
- 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
EMBED THIS BADGE
<a href="https://x402-list.com/services/norravex-x402-endpoint-audit?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/norravex-x402-endpoint-audit.svg" alt="Norravex x402 Endpoint Audit listed on x402-list" height="28"> </a>
[](https://x402-list.com/services/norravex-x402-endpoint-audit?utm_source=badge&utm_medium=referral&utm_campaign=embed)
<a href="https://x402-list.com/services/norravex-x402-endpoint-audit?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/norravex-x402-endpoint-audit.svg?data=uptime" alt="Norravex x402 Endpoint Audit uptime on x402-list" height="28"> </a>