{"api":"v1","generated_at":"2026-10-05T19:49:54.297Z","licence":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","attribution":"TOLL, with a link to the page cited"},"page":"https://tollindex.com/e/api-jagent-dev-v1-contract-check-1535cf","pinned_page":"https://tollindex.com/e/api-jagent-dev-v1-contract-check-1535cf/at/2026-10-05T14-34Z","pinned":false,"method":"https://tollindex.com/ledger/method","snapshot_at":"2026-10-05T14:34:15.385Z","snapshot_stamp":"2026-10-05T14-34Z","endpoint":{"slug":"api-jagent-dev-v1-contract-check-1535cf","canonical_url":"https://api.jagent.dev/v1/contract-check","resource":"https://api.jagent.dev/v1/contract-check","http_method":"POST","type":"http","x402_version":2,"registries":[],"primary_registry":"cdp","curated_by_coinbase":false,"description":"Checks a Base smart contract. JSON body: address (0x + 40 hex), one per call. Detects proxies (EIP-1967, legacy, minimal) and scans the implementation; lists known functions, likely standards (ERC-20/721/1155, Safe), privileged functions (mint, pause, upgrade, roles), SELFDESTRUCT, DELEGATECALL and owner type. Returns low/medium/high with notes. Heuristic, not an audit. Body max 4 KB; 1-15 s. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.","service_name":"Base Contract Check","declared_category":null,"declared_tags":["base","contract","security","proxy","onchain"],"route_template":null,"registry_updated":"2026-10-03T07:35:39.461Z"},"derived":{"note":"fields no registry supplies; TOLL derives them and marks them derived on the page","title":"contract check","category":"market-data","first_observed_by_toll":"2026-10-03T11:37:42.629Z","last_observed_by_toll":"2026-10-05T05:36:47.069Z","observation_began":"2026-09-10"},"presence":{"listed_now":false,"first_absent_at":"2026-10-05T14:34:15.385Z","delisting_confirmed_at":null,"events":[{"registry":"cdp","at":"2026-10-03T11:37:42.629Z","event":"listed"},{"registry":"cdp","at":"2026-10-05T14:34:15.385Z","event":"delisted"}]},"accepts":[{"registry":"cdp","ordinal":0,"network":"eip155:8453","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USD Coin","symbol":"USDC","decimals":6,"amount_display":"0.005 USDC","amount_units":0.005,"decimals_known":true,"pay_to":"0x079A5AC8cbaB926ECD2b2FCcC13b693fB88e12Bb","scheme":"exact"}],"counters":{"observed_at":"2026-10-05T05:36:47.069Z","calls_30d":1,"unique_payers_30d":1,"last_called_at":"2026-10-03T07:35:38.762Z"},"validation":{"latest":{"observed_at":"2026-10-05T06:00:16.045Z","state":"fail","failed_checks":["returns_402"],"endpoint_http_status":530,"run_id":"daily-2026-10-05"},"uptime":[{"days":7,"observed":3,"passed":2,"ratio":0.6666666666666666},{"days":30,"observed":3,"passed":2,"ratio":0.6666666666666666},{"days":90,"observed":3,"passed":2,"ratio":0.6666666666666666}],"history_90d":[{"observed_at":"2026-10-05T06:00:16.045Z","state":"fail","failed_checks":["returns_402"],"run_id":"daily-2026-10-05","state_changed":true},{"observed_at":"2026-10-04T08:50:28.860Z","state":"pass","failed_checks":[],"run_id":"daily-2026-10-04","state_changed":false},{"observed_at":"2026-10-03T11:39:21.792Z","state":"pass","failed_checks":[],"run_id":"new-after-daily-2026-10-03","state_changed":true}]},"seller":{"wallet":"0x079A5AC8cbaB926ECD2b2FCcC13b693fB88e12Bb","page":"https://tollindex.com/seller/0x079A5AC8cbaB926ECD2b2FCcC13b693fB88e12Bb","endpoints":33,"hosts":1},"reports":0,"registry_record":{"cdp":[{"tags":["base","contract","security","proxy","onchain"],"type":"http","accepts":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x079A5AC8cbaB926ECD2b2FCcC13b693fB88e12Bb","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"quality":{"lastCalledAt":"2026-10-03T07:35:38.762Z","l30DaysTotalCalls":1,"l30DaysUniquePayers":1},"resource":"https://api.jagent.dev/v1/contract-check","extensions":{"bazaar":{"info":{"input":{"body":{"address":"0x1111111111111111111111111111111111111111"},"type":"http","method":"POST","bodyType":"json"},"output":{"type":"json","example":{"risk":"high","chain":"base","notes":["upgradeable proxy: logic can be replaced by the admin or owner","mint function present and an owner is set"],"owner":"0x3333333333333333333333333333333333333333","proxy":{"type":"eip1967","admin":null,"implementation":"0x2222222222222222222222222222222222222222"},"address":"0x1111111111111111111111111111111111111111","code_size":1850,"standards":["erc20"],"is_contract":true,"has_selfdestruct":false,"owner_is_contract":true,"uses_delegatecall":true,"privileged_functions":["mint","pause"]}}},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"contract address, 0x + 40 hex"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"risk":{"type":"string"},"chain":{"type":"string"},"notes":{"type":"array"},"owner":{"type":"string"},"proxy":{"type":"object","properties":{"type":{"type":"string"},"implementation":{"type":"string"}}},"address":{"type":"string"},"code_size":{"type":"number"},"standards":{"type":"array"},"is_contract":{"type":"boolean"},"has_selfdestruct":{"type":"boolean"},"owner_is_contract":{"type":"boolean"},"uses_delegatecall":{"type":"boolean"},"privileged_functions":{"type":"array"}}}}}}}}},"description":"Checks a Base smart contract. JSON body: address (0x + 40 hex), one per call. Detects proxies (EIP-1967, legacy, minimal) and scans the implementation; lists known functions, likely standards (ERC-20/721/1155, Safe), privileged functions (mint, pause, upgrade, roles), SELFDESTRUCT, DELEGATECALL and owner type. Returns low/medium/high with notes. Heuristic, not an audit. Body max 4 KB; 1-15 s. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.","lastUpdated":"2026-10-03T07:35:39.461Z","serviceName":"Base Contract Check","x402Version":2}]}}