{"slug":"x402-checkup-51fc560e","name":"x402 Checkup","summary":"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.","status":"live","headings":[{"slug":"calculators","title":"Calculators & converters"},{"slug":"payments","title":"Payments & checkout"}],"indexable":true,"listed_since":"2026-10-25T17:51:19.775164Z","sources":[{"source":"x402_bazaar","external_id":"https://checkup.kagurazaka.dev/v1/checkup","owner_address":"0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5","seen_at":"2026-11-10T07:53:26.299864Z","removed_at":null}],"endpoints":[{"url":"https://checkup.kagurazaka.dev/v1/checkup","host":"checkup.kagurazaka.dev","protocol":"x402","state":"live","last_probe_at":"2026-11-10T01:06:59.160730Z","last_ok_at":"2026-11-10T01:06:59.160730Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"checkup-kagurazaka-dev-f9457ca4","name":"checkup.kagurazaka.dev"}],"payment_options":[{"endpoint_url":"https://checkup.kagurazaka.dev/v1/checkup","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"5000","pay_to":"0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5","observed_at":"2026-11-10T01:06:59.160730Z"},{"endpoint_url":"https://checkup.kagurazaka.dev/v1/checkup","network":"eip155:84532","scheme":"exact","rail":"exact","asset":"0x036cbd53842c5426634e7929541ec2318f3dcf7e","coin":"USDC","asset_label":"USDC","amount":"5000","pay_to":"0xf1643bd00d3c071d9a0c12a4e7d3a17e6e19f8a5","observed_at":"2026-11-10T01:06:59.160730Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":9,"paid_calls_30d":41,"last_paid_at":"2026-11-10T02:08:33.613Z","reported_at":"2026-11-10T07:53:26.299864Z"},"assessment":{"method":"2026.11.1","checks":[{"id":"answers","state":"pass","reason":"Answered a check 5 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 15 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"9 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-11-10T06:37:57.983104Z"},"identity":{"endpoint_domains":["kagurazaka.dev"],"proven_domains":[],"proven_wallets":[],"namesakes":[{"slug":"x402-checkup-a8c25607","name":"x402 Checkup","proven_domain":null}],"namesake_count":1,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}