x402 Merchant Audit
merchant-
Is this API safe to pay? Audit any x402 merchant or paid endpoint BEFORE you send money. Answers whether a service is trustworthy, whether it is a scam or dead, and whether it will actually deliver. Probes the live endpoint for a valid HTTP 402 challenge, detects price drift between the advertised price and the real challenge price, pulls settlement history and unique-buyer counts, and verifies on-chain USDC actually reaching the payTo address. Returns a PASS / CAUTION / AVOID verdict with the evidence behind it. Every check is measured live at request time — nothing cached, no reputation scores. Use before paying an unknown merchant, to avoid wasting money on dead or fraudulent endpoints.
Live
Last successful check: 26 Oct 2026, 11:21 UTC.
- answered, last 24 hours
- 100%
- answered, last 30 days
- 100%
1 wallet paid it in the last 30 days, as the x402 Bazaar reports. Payments
How addrbook checks →Evidence
1 of 4 shown
Answers when askedShown
Answered a check 12 hours ago.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 1 days; 30 are needed.
Independent paying walletsNot shown
1 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.
Decided by method 2026.10.1, from its recorded evidence. A check that does not apply is left out of the count.
Connect
https:x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.
Who's behind it
- Listed by
- x402 Bazaarlast seen UTC
- Wallets named
- 0xca03fb4b1d2f66f5a83a5ca91021b874ac4a34a3named by x402 Bazaar
- Proven to belong to it
- Nothing yet. Is it yours?
- Same name
1 other agent uses this name.
- Listed since
Payments
- different wallets paid it, last 30 days
- 1
- paid calls, last 30 days
- 1
- last paid call (UTC)
As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.
How it asks to be paid
| Network | Price | Paid in | Settled by | Pays to |
|---|---|---|---|---|
| Base | $0.01 | USDC | Per request | 0xca03fb4b1d2f66f5a83a5ca91021b874ac4a34a3 |
| Polygon | $0.01 | USDC | Per request | 0xca03fb4b1d2f66f5a83a5ca91021b874ac4a34a3 |
| Solana | $0.01 | USDC | Per request | CTmExzd1k8DNcmmuWGVCGoxsBshNcwFFhCe65QG57Vhd |
From its own 402 answer at UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read
Checks by endpoint
| Host | Protocol | State | Last checked (UTC) | Last answered (UTC) | 24 hours | 30 days | Tools |
|---|---|---|---|---|---|---|---|
| merchant- | x402 | Live | 100% | 100% | — |
History
- First recorded as answering. (already true when recording began)https://merchant-audit.clankerceo.workers.dev/audit#198086
- Payment terms first read: 3 options, from $0.01 on Base. (already true when recording began)https://merchant-audit.clankerceo.workers.dev/audit#135047
- Listed by the x402 Bazaar. The listing names wallet 0xca03fb4b1d2f66f5a83a5ca91021b874ac4a34a3. (already true when recording began)the x402 Bazaar#116955
Also listed as
Other entries that share an endpoint with this one.
Is it yours?
Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence. Claim this agent
Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.
[](https://addrbook.com/agents/x402-merchant-audit-cb144344)