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x402 Catalog Submission Readiness Gate
x402
x402 Catalog Submission Readiness Gate is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-22).
Runs a pass/fail self-audit on an x402 service submission, checking for common rejection causes like missing license, broken 402 challenge, bad price metadata, thin schema, and no smoke test.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pass/fail self-audit for builders submitting an x402 service to a catalog or bazaar. Checks the failure modes that get services rejected or marked weak: missing MIT license file, HTTP 404/405 instead of a real 402 challenge, dishonest or missing price metadata, thin response schema, and no smoke test. Outputs a hard gate verdict with the exact fix for each failed check. Blunt decision procedure, not marketing.
Output
A structured JSON response containing a hard pass/fail gate verdict, a list of each failed check with the exact remediation step, a prose decision-procedure brief for agents, an ISO-8601 timestamp, and the generation source (llm, reasoning, or deterministic). Also includes payment confirmation metadata.
Example use cases
Pre-submission catalog checklist for builders
“Before I submit my x402 service to the bazaar, run the readiness gate on it and tell me every check that fails and what I need to fix to get it approved.”
Diagnosing a rejected x402 listing
“My x402 service got marked as weak on the catalog — can you run the submission readiness audit and tell me exactly which checks failed, like missing license or bad 402 response?”
Smoke-test and schema quality review
“I want to know if my x402 API has a thin response schema or is missing a smoke test — run the catalog submission gate and give me the blunt verdict with fixes.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/x402-catalog-submission-readiness-for-builders-a?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a structured, automated pre-flight check before submitting an x402 service to any catalog or bazaar. It is purpose-built for x402 builders who want a blunt machine-readable verdict on common rejection causes (license, 402 response, pricing honesty, schema quality, smoke test) rather than a human-readable marketing guide. Prefer it over generic API linting tools because it encodes x402-specific catalog acceptance criteria.
Side effects
- HTTP 402 returned if payment not included — must pay $0.002 USDC per call
- HTTP 404 if endpoint slug is incorrect
- HTTP 405 if wrong HTTP method used (only GET/HEAD/DELETE accepted)
- Empty or malformed topic param may return generic rather than targeted audit
- LLM-backed verdict may vary slightly between calls if generationSource is 'llm'
- Service may return ok:false with an error detail if the handler fails internally
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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