{"slug":"saylorinnovations-com-api-chain-ownership-a02096","title":"Contract ownership check for 16 EVM chains","host":"saylorinnovations.com","method":"GET","resource":"https://saylorinnovations.com/api/chain/ownership","category":"market","description":"Contract ownership check for 16 EVM chains: owner, whether it is a wallet or contract, renounced, pending owner and whether the contract is paused.","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":505,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"chain":"ethereum","contract":"0xdAC17F958D2ee523a2206206994597C13D831ec7"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"chain":{"description":"chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id","type":"string"},"contract":{"description":"the contract address to inspect","type":"string"}},"required":["chain","contract"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"admin_function_result":{"description":"result of an admin() style call if present","type":["string","null"]},"chain":{"description":"the chain name that was queried","type":"string"},"chain_id":{"description":"EIP-155 chain id of that network","type":"number"},"contract":{"description":"contract inspected","type":"string"},"has_owner_function":{"description":"true when owner() answers","type":"boolean"},"has_pause_function":{"description":"true when paused() answers","type":"boolean"},"note":{"description":"plain-language reading of the result","type":"string"},"owner":{"description":"current owner","type":["string","null"]},"owner_kind":{"description":"eoa or contract","type":["string","null"]},"ownership_renounced":{"description":"true when the owner is the zero or dead address","type":["boolean","null"]},"paused":{"description":"true when the contract is paused","type":["boolean","null"]},"pending_owner":{"description":"owner waiting to accept a transfer","type":["string","null"]},"source":{"description":"where the data was read from or how it was computed","type":"string"}},"required":["chain","chain_id","contract","has_owner_function","note","source"],"type":"object"},"type":{"const":"json","type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":505,"error":null}],"description_full":"Contract ownership check for 16 EVM chains: owner, whether it is a wallet or contract, renounced, pending owner and whether the contract is paused.","last_updated":"2026-10-21T04:11:31.326Z","schemes":["exact"]}