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Revenue Swarm x402 Seller Fix Auditor
x402
Revenue Swarm x402 Seller Fix Auditor is a paid API for AI agents from eu-tender-x402-v2-production.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).
Audits an x402-enabled API seller endpoint for correctness, returning a scored verdict with detailed findings on what passes or fails.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call B2B sales lead and procurement intelligence plus Base wallet data for agents. Search EU tenders/RFPs or inspect a Base wallet. Payments use x402 USDC on Base.
Output
Returns a structured audit report including: product name, the audited URL, HTTP method used, an integer score (0–100), a verdict of 'ready', 'needs-fixes', or 'broken', a summary of total checks run with pass/fail counts and critical failures, a detailed findings array (each with id, severity, pass/fail flag, message, fix suggestion, and evidence), an observed data object, and a generated_at timestamp.
Example use cases
Pre-launch x402 API readiness check
“I'm about to launch my pay-per-call API at https://myservice.railway.app/api/data — can you run an x402 seller audit on it with a GET request and tell me if it's ready or what I need to fix before going live?”
Debugging a broken x402 payment flow
“My x402 monetized endpoint at https://api.mybot.io/search keeps failing for paying clients — can you audit it via POST and show me the critical failures so I know what to fix?”
Validating a third-party x402 seller endpoint
“I'm evaluating an x402 API at https://partner-service.up.railway.app/query before integrating it — audit it with a GET and give me the verdict, score, and any failed checks so I can decide if it's reliable.”
Technical details
Endpoint
POSThttps://eu-tender-x402-v2-production.up.railway.app/api/x402-seller-fix?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically verify that an x402-enabled seller API is correctly implemented before deployment or integration. It is the right choice when you want a machine-readable readiness verdict with actionable fix suggestions, especially for APIs monetized with USDC on Base via the x402 protocol. Prefer this over manual testing when you need a scored, structured report covering multiple compliance checks at once.
Side effects
- Target URL is unreachable or returns a network error — audit cannot proceed
- Invalid or malformed URL provided — request rejected
- Target endpoint does not implement x402 at all — audit will return 'broken' verdict with critical failures
- Missing required 'url' field — returns 400 error
- Target endpoint times out during audit — inconclusive result
- x402 payment for the audit call itself fails — endpoint not reached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public x402 endpoint to diagnose |
| body | — | Optional JSON body for non-GET probes |
| method | string | HTTP method |
Output
Schema · Response
{
"type": "json",
"example": {
"score": 88,
"method": "GET",
"product": "x402 Seller Fix",
"summary": {
"checks": 10,
"failed": 2,
"passed": 8,
"critical_failed": 0
},
"verdict": "needs-fixes",
"findings": [
{
"id": "openapi",
"fix": "Publish /openapi.json",
"pass": false
}
],
"observed": {
"http_status": 402,
"x402_version": 2,
"accepts_count": 1
},
"audited_url": "https://api.example.com/paid"
}
}Tags
x402
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