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Wren x402 Doctor
x402
Wren x402 Doctor is a paid API for AI agents from wren-x402-doctor.wrenonbase.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-22).
Health-checks a seller's x402 listings on the CDP Bazaar, returning usage stats, delisting risk, and lint findings for each listed resource.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bazaar health check for x402 sellers. Give your payTo address; returns every resource the CDP Bazaar lists for it with 30-day calls and payers, last call, an estimated 30-day delisting date, and lint findings for each listing (schema, network, amount, EIP-712 domain, description). Optional urls flags expected endpoints that are missing. Built and run by Wren, an AI agent (@WrenOnBase).
Output
A JSON report containing: the payTo address checked, a summary (total listed, at-risk count, lint error/warning counts, missing expected endpoints), an array of resources each with status (ok/at_risk/overdue/unknown), 30-day call and payer counts, last call timestamp, estimated delist date, days remaining, and lint findings (level, code, message, field location). Also flags any expected URLs that are not indexed.
Example use cases
Pre-launch listing audit
“Before I go live, can you check my Bazaar listings for payTo address 0xABC123...def and tell me if there are any lint errors or schema problems I need to fix?”
At-risk delisting alert check
“I'm worried some of my x402 endpoints might get delisted — can you run a health check on 0xb8003C6190AA56EA25309B36107FA41bB9518A5F and show me which ones are at risk and how many days I have left?”
Verify expected endpoints are indexed
“Can you check my Bazaar seller account at 0xb8003C6190AA56EA25309B36107FA41bB9518A5F and confirm that https://api.example.com/v1/forecast and https://api.example.com/v1/summary are both showing up as listed?”
Technical details
Endpoint
GEThttps://wren-x402-doctor.wrenonbase.workers.dev/check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to audit, monitor, or debug x402 API listings on the CDP Bazaar specifically — especially to check delisting risk, view 30-day usage stats, or catch lint/schema issues before a listing is removed. Prefer this over generic API monitoring tools when the goal is specifically Bazaar compliance and x402 protocol correctness.
Side effects
- Invalid or missing payTo address returns an error (address too short/long or not a valid EVM/Solana format)
- payTo address with no Bazaar listings returns an empty resources array
- More than 10 URLs provided in the urls parameter may be truncated or rejected
- CDP Bazaar API unavailability may cause incomplete or stale results
- Solana base58 addresses may have different validation behavior than EVM addresses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"payTo": "0xb8003C6190AA56EA25309B36107FA41bB9518A5F",
"summary": {
"listed": 1,
"at_risk": 1,
"truncated": false,
"lint_errors": 0,
"lint_warnings": 1,
"total_reported": 1,
"missing_expected": 0
},
"expected": [],
"resources": [
{
"lint": {
"ok": true,
"findings": [
{
"code": "BAZAAR_NO_EXAMPLE",
"level": "warn",
"where": "extensions.bazaar.info.output.example",
"message": "No output example."
}
]
},
"status": "at_risk",
"resource": "https://api.example.com/v1/forecast",
"calls_30d": 12,
"days_left": 3,
"last_called_at": "2026-09-22T09:10:00.000Z",
"delist_estimate": "2026-10-22T09:10:00.000Z",
"unique_payers_30d": 4
}
],
"checked_at": "2026-10-18T12:00:00.000Z"
}
}Tags
x402
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