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DDG x402 Bazaar Endpoint Diagnostics
x402
DDG x402 Bazaar Endpoint Diagnostics is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Diagnoses a seller's x402/bazaar paid endpoint by fetching it unpaid, validating the 402 challenge structure, and returning a per-blocker pass/fail list with remediation instructions.
Price / call$0.01
Success—
StatusUnknown
How this service works
Diagnose a seller's x402 (bazaar) paid endpoint: fetch it unpaid and require a 402 challenge, then validate x402Version, accepts[], resource URL, description length, amount/asset/network, the bazaar extension, the EIP-712 domain and (optionally) payTo. Returns a per-blocker pass/fail list, an overall verdict and exact remediation text. Signed verdict.
Output
Returns a structured report with a per-blocker pass/fail list covering x402Version, accepts[], resource URL, description length, amount/asset/network, bazaar extension validity, EIP-712 domain correctness, and optionally payTo address. Includes an overall verdict (pass/fail) and exact remediation text for each failed check. The verdict is cryptographically signed.
Example use cases
Debug failing bazaar marketplace listing
“My endpoint keeps getting rejected on bazaar — can you diagnose https://myapi.example.com/v1/generate and tell me which parts of the x402 challenge are failing and what I need to fix?”
Validate new x402 seller endpoint before launch
“Before I go live, can you run a full bazaar diagnosis on my new paid endpoint at https://api.myservice.io/v1/premium and confirm the 402 response, EIP-712 domain, accepts array, and payTo address all pass?”
Remediate broken payment rail configuration
“My x402 endpoint at https://tools.myplatform.dev/v1/analyze was working but buyers are now getting errors — can you probe it, check the bazaar extension and amount/asset/network fields, and give me the exact remediation steps?”
Technical details
Endpoint
POSThttps://agents.daedalusdevelopmentgroup.com/v1/x402/bazaar-diagnose?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to debug or validate a specific x402/bazaar seller endpoint implementation and want structured, actionable per-field pass/fail feedback with remediation text. Prefer this over manual inspection when you need to confirm EIP-712 domain correctness, bazaar extension compliance, and payment parameters in a single automated call. Especially useful before listing a new endpoint on bazaar or after receiving buyer complaints about payment failures.
Side effects
- Target endpoint is unreachable or times out — diagnosis cannot proceed
- Target endpoint returns 200 instead of 402, indicating no payment gate is present
- Malformed input body causes 400 validation error
- x402 challenge response is missing required fields, resulting in multiple blockers flagged
- EIP-712 domain cannot be parsed, failing that specific check
- Network/asset combination is unrecognized by the validator
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Tags
x402
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