x402 Checkup
checkup.
Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.
Filed under Calculators & converters, Payments & checkout by addrbook, from the words in its listing
Live
Last successful check: 10 Nov 2026, 01:06 UTC.
- answered, last 24 hours
- 100%
- answered, last 30 days
- 100%
9 different wallets 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 5 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 15 days; 30 are needed.
Independent paying walletsNot shown
9 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 2026.11.1, 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. The check never pays.
Who's behind it
- Listed by
- x402 Bazaarlast seen UTC
- Wallets named
- 0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5named 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
- 9
- paid calls, last 30 days
- 41
- 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 | $0.005 | USDC | Per request | 0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5 |
| Base Sepolia (testnet) | $0.005 | USDC | Per request | 0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5 |
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 |
|---|---|---|---|---|---|---|---|
| checkup. | x402 | Live | 100% | 100% | — |
History
- The x402 Bazaar updated its listing.the x402 Bazaar#4664927
- The x402 Bazaar updated its listing.the x402 Bazaar#4581758
- The x402 Bazaar updated its listing.the x402 Bazaar#4387722
- The x402 Bazaar now reports 9 paying wallets over 30 days.the x402 Bazaar#3967392
- The x402 Bazaar now reports 8 paying wallets over 30 days.the x402 Bazaar#3064928
- The x402 Bazaar now reports 7 paying wallets over 30 days.the x402 Bazaar#2200223
- The x402 Bazaar now reports 6 paying wallets over 30 days.the x402 Bazaar#1789782
- The listing's wallet changed from 0xe6f7508ab572a4dc9c7486ea017b100d83f3c3f8 to 0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5. The x402 Bazaar now reports 4 paying wallets over 30 days.the x402 Bazaar#1507805
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 and get alerts when it changes. 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-checkup-51fc560e)