{"id":117599,"recorded_at":"2026-10-26T14:40:11.660484Z","observed_at":"2026-10-26T14:40:11.660414Z","subject_kind":"source_record","subject":"x402_bazaar:https://onchaincheck.dev/base/contract","kind":"listing","method":"baseline/1","body":{"endpoints":[["x402","https://onchaincheck.dev/base/contract"]],"name":"Base Onchain Data","owner_address":"0x2ecb9e1fcca7a62758c679f11bc3241466d181d8","raw":{"accepts":[{"amount":"5000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"maxTimeoutSeconds":300,"network":"eip155:8453","payTo":"0x2ECB9E1fcca7A62758c679F11bC3241466d181d8","scheme":"exact"}],"description":"Identify what lives at a Base address: wallet (EOA, including EIP-7702 delegation) or contract, which token standard it implements (ERC-20, ERC-721, ERC-1155), name and symbol, upgradeable-proxy implementation and admin, smart-wallet proxies, bytecode size, nonce and ETH balance.","extensions":{"bazaar":{"info":{"input":{"method":"GET","queryParams":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"type":"http"},"output":{"example":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","bytecodeBytes":1852,"chain":"base","decimals":6,"isContract":true,"kind":"ERC-20 token","name":"USD Coin","nativeBalance":"0.009800646158085843","proxy":{"admin":"0x4fc7850364958d97B4d3f5A08f79db2493f8cA44","implementation":"0x2Ce6311ddAE708829bc0784C967b7d77D19FD779","upgradeable":true},"standards":{"erc1155":false,"erc165":false,"erc20":true,"erc721":false},"symbol":"USDC","totalSupply":"4291989037.45169"},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"additionalProperties":false,"properties":{"address":{"description":"Any address on Base","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"}},"required":["address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}}},"lastUpdated":"2026-10-24T07:59:31.763Z","quality":{"l30DaysTotalCalls":2,"l30DaysUniquePayers":2,"lastCalledAt":"2026-10-24T07:59:31.629Z"},"resource":"https://onchaincheck.dev/base/contract","serviceName":"Base Onchain Data","tags":["base","onchain","erc20","token","wallet"],"type":"http","x402Version":2},"source":"x402_bazaar","summary":"Identify what lives at a Base address: wallet (EOA, including EIP-7702 delegation) or contract, which token standard it implements (ERC-20, ERC-721, ERC-1155), name and symbol, upgradeable-proxy implementation and admin, smart-wallet proxies, bytecode size, nonce and ETH balance."},"body_sha256":"b18d1b42e5fa59edcb0c50aec1a5d002973dc31c64c9eeb3a27c3b0a169c8514","prev_id":null,"leaf":"0x6845ecbd07f174c648fb174e574c4a1e6472847e63a372a375c86a22e1d1ce4e","leaf_text":"{\"body\":\"b18d1b42e5fa59edcb0c50aec1a5d002973dc31c64c9eeb3a27c3b0a169c8514\",\"id\":117599,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025611660414,\"prev\":null,\"subject\":\"x402_bazaar:https://onchaincheck.dev/base/contract\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0x68463b64d1231d813fb6ad00ac028c8ee7c7ac8a71c11420ed5f887bc019128d","0xcaeb79eab520b2d2fa0d640c6100dac7c3ed69d9b54c4bb3668bcc27b5a5b79d","0x48b005151292dd42a08ffabe027b391a0f9b9e3a6cd30b32a96d40fccbfccb0b","0xa13e6e9d36f42969612d464db057410c9f5e5bed76d5825fa19f5c8cfe1054be","0xb56cbd7df8c4898c3f5d4435c30256087d141c9d177f55787ebed6fff3aaacc4","0x5e238438c74df1d62b2d9dd98d0b9629e37ecbdc5b78aa604462663f54a23912","0x5eea7701af60b65a6deb4f37d778e3540b49bf7cda2387df5467eb9cca053c2e","0x16603b0733490fcd9cb85922b061d3119e260813bb1287d2cf026d817daa5491","0xe1c1e9fd38a3fc17946aeb839a5eccdd70ee30d38ddc7ad783c8d4d922e6c071","0x3721d1d808a1e2d520739f0398d668bcf5485bd48b7b9973c098d028d54d4fe1","0x077c74551bfc77d0c61421c3d34c02b1086f7d8fae7a09ac5ef6d43246c34a52","0x260682fd6ecd274e73505c5e0bd798abdd0e702afca4f8eebd4331b607a6b175","0x5f350d70c252ff1169c0210fd45fce1b0ab8d7316f048741a9e90a6c8cb65dcf","0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666","0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40","0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0","0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d","0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}