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x402 Catalog Submission Readiness Gate
x402
x402 Catalog Submission Readiness Gate is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-31).
Self-audit pass/fail gate for builders checking if their x402 service meets catalog/bazaar submission requirements, with specific fixes for each failed check
Price / call$0.002
Success—
StatusDown
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 boolean pass/fail verdict, a list of specific failed checks (e.g. missing MIT license, incorrect 402 challenge, dishonest price metadata, thin response schema, no smoke test), and exact remediation steps for each failure, plus a prose decision-procedure brief for agents, generation timestamp, and payment confirmation.
Example use cases
Pre-submission catalog audit
“Before I submit my x402 payment API to the catalog, run the readiness gate and give me a hard verdict — list every check that fails and exactly what I need to fix.”
Debug bazaar rejection
“My x402 service got rejected or marked weak on the bazaar — can you run the submission readiness gate and tell me what's broken, like missing license file, bad 402 response, or thin schema?”
Price metadata validation before listing
“I want to make sure my x402 service has honest and complete price metadata before listing — run the readiness gate and tell me if that check passes or what needs to change.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/x402-catalog-submission-readiness-for-builders-a?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you are a builder preparing to submit an x402 service to a catalog or bazaar and need a blunt, automated pre-flight checklist that identifies exactly which submission criteria fail and provides specific fixes. It is purpose-built for the x402 ecosystem's catalog submission standards, not generic API quality checks.
Side effects
- HTTP 404 if the endpoint is unavailable or misconfigured
- HTTP 405 if wrong HTTP method used (only GET/HEAD/DELETE accepted)
- Payment failure if USDC balance insufficient for the $0.002 per-call fee
- Empty or malformed result if no service slug or topic is resolvable
- LLM generation failure returning partial or null brief field
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"brief": "plain prose decision procedure (120+ words)",
"model": "deepseek/deepseek-v4-flash-0731",
"topic": "string topic",
"service": "x402-catalog-submission-readiness-for-builders-a",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "x402-catalog-submission-readiness-for-builders-a",
"provider": "K-2SO"
}
}Tags
x402
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