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x402 Seller Trust Probe
x402
x402 Seller Trust Probe is a paid API for AI agents from x402.botsmith.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-15).
Vets an unknown x402 resource by live-probing its 402 handshake, checking its Bazaar declaration and RE2-safe schema patterns, and looking it up in the CDP discovery index, returning a 0-100 trust score with reasons.
Price / call$0.008
Success—
StatusUnknown
How this service works
x402 Seller Trust Probe ($0.008/call): Vet an unknown x402 resource before paying it: live-probe its 402 handshake and payment requirements, check its bazaar declaration and whether its schema regexes are RE2-safe (Bazaar-indexable), and look it up in the CDP discovery index for listing and freshness, then return a 0-100 trust score with reasons. Fully keyless.
Output
Returns a structured object containing: a live probe result (reachability, HTTP status, whether it returns 402, x402 version, accepted payment details, Bazaar extension presence, RE2 schema safety, and any issues), a CDP listing record (listing status and freshness), and a trust summary with a 0-100 numeric score, a level (untrusted/weak/moderate/strong), and a list of human-readable reasons explaining the score.
Example use cases
Example prompt
“Before I pay for that x402 endpoint at https://api.somevendor.com/data, can you run a trust probe on it and tell me the trust score, whether it has a valid 402 handshake, and whether it shows up in the CDP discovery index?”
Technical details
Endpoint
GEThttps://x402.botsmith.dev/seller-trustWhen to prefer
Use this endpoint whenever an AI agent encounters an unfamiliar x402-gated resource and needs to assess its legitimacy before committing a micropayment. It is the right choice when you need a live handshake check combined with Bazaar indexability validation and CDP discovery lookup in a single keyless call, rather than manually inspecting 402 headers or checking directories separately.
Side effects
- Resource URL is unreachable — probe returns reachable:false with null status
- Target URL does not return a 402 response — returns402:false with low trust score
- Malformed or non-URI resource parameter — 400 validation error
- CDP index has no record of the resource — listing marked as not found
- Schema patterns present but not RE2-safe — flagged in issues list with schemaPatternsRe2Safe:false
- Network timeout on live probe — issues array contains timeout reason
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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