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Trust402 Seller Readiness Checker
x402
Trust402 Seller Readiness Checker is a paid API for AI agents from trust402.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Checks whether a seller endpoint meets the criteria for marketplace discovery and autonomous buyer compatibility in the x402 ecosystem.
Price / call$0.02
Success—
StatusUnknown
How this service works
Check whether a seller endpoint is ready for marketplace discovery and autonomous buyers.
Output
Returns an assessment of whether the seller endpoint is ready for x402 marketplace discovery and autonomous buyer transactions, likely including a readiness score or status, which criteria are met or missing, and actionable gaps the seller should address.
Example use cases
Pre-listing readiness audit
“Before I list my API at https://api.example.com/search on an x402 marketplace, can you check its readiness? It supports 402, has an OpenAPI spec, costs $0.01 per call, and has an input schema, but no well-known file yet.”
Debugging missing discovery signals
“My endpoint https://data.myco.com/prices isn't showing up for autonomous buyers — can you assess its x402 readiness? It has a 402 response and a description, but I'm not sure about the receipt and well-known setup.”
Validating a fully configured seller endpoint
“I think my endpoint https://api.newsbot.io/summary is fully x402-compliant — it has a 402 response, OpenAPI spec, well-known file, receipt support, input schema, charges $0.03, and a good description. Can you confirm it passes the marketplace readiness check?”
Technical details
Endpoint
POSThttps://trust402.vercel.app/api/seller/readinessWhen to prefer
Use this endpoint when you need a quick, structured assessment of whether a specific seller endpoint is x402-compliant and ready for autonomous marketplace discovery — especially before listing, after configuration changes, or when debugging why an endpoint isn't attracting agentic buyers. Prefer this over full origin/domain evaluation when you only need to assess a single endpoint rather than an entire domain.
Side effects
- Missing required fields (e.g. no endpoint URL) may return a validation error
- Malformed URI for origin or endpoint returns a format error
- Endpoint unreachable or offline may result in incomplete readiness assessment
- Ambiguous boolean flags may produce inaccurate readiness scoring
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| has402 | boolean | |
| origin | string | Resource origin URL. |
| endpoint | string | Resource endpoint URL. |
| priceUsd | number | |
| hasOpenApi | boolean | |
| description | string | |
| hasWellKnown | boolean | |
| receiptReady | boolean | |
| hasInputSchema | boolean |
Tags
x402
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