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Quartermaster x402 Endpoint Inspector & Linter
x402
Quartermaster x402 Endpoint Inspector & Linter is a paid API for AI agents from quartermaster.surewhynot.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Fetches and decodes the 402 payment challenge from any x402-enabled endpoint, identifies the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.
Price / call$0.002
Success—
StatusUnknown
How this service works
Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.
Output
Returns a decoded breakdown of the 402 payment challenge from the target endpoint, including the identified network (e.g. Base) and payment asset (e.g. USDC), along with a lint report flagging any misconfigurations such as missing or malformed Bazaar discovery metadata fields.
Example use cases
Example prompt
“Can you inspect and lint the x402 endpoint at https://api.example.com/v1/some-paid-endpoint — decode the 402 challenge, tell me what network and asset it uses, and flag any misconfigurations or missing Bazaar discovery metadata?”
Technical details
Endpoint
GEThttps://quartermaster.surewhynot.app/v1/x402/inspectWhen to prefer
Use this endpoint when you need to debug, validate, or understand the configuration of a specific x402 paid endpoint — especially when checking for Bazaar discovery compliance or diagnosing payment integration issues. Prefer this over the full audit endpoint when you only need a quick inspect-and-lint pass without deep payment field verification.
Side effects
- Target URL does not return a 402 status — error indicating endpoint is not an x402 paid endpoint
- Target URL is unreachable or times out — network error response
- Malformed 402 response from target — decoding error with details
- Invalid URL format provided — validation error on the url query parameter
- Target endpoint returns unexpected HTTP status — descriptive error message
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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