{"slug":"saylorinnovations-com-api-chain-code-83e4dc","title":"Contract or wallet check on 16 EVM chains","host":"saylorinnovations.com","method":"GET","resource":"https://saylorinnovations.com/api/chain/code","category":"code","description":"Contract or wallet check on 16 EVM chains: deployed bytecode size, account kind including EIP-7702 delegated accounts, optional runtime bytecode.","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1271,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"address":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","chain":"ethereum"},"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":{"address":{"description":"the address to check","type":"string"},"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"}},"required":["chain","address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"account_kind":{"description":"contract, eoa_or_empty or eip7702_delegated_eoa","type":"string"},"address":{"description":"the address that was checked","type":"string"},"bytecode":{"description":"runtime bytecode as hex, only when full=true","type":["string","null"]},"bytecode_truncated":{"description":"true when bytecode was cut at 24,576 bytes","type":"boolean"},"chain":{"description":"the chain name that was queried","type":"string"},"chain_id":{"description":"EIP-155 chain id of that network","type":"number"},"code_size_bytes":{"description":"size of the deployed runtime code in bytes","type":"number"},"delegate_target":{"description":"for EIP-7702 accounts, the contract the account delegates to","type":["string","null"]},"is_contract":{"description":"true when the address has contract code (EIP-7702 delegated accounts count as accounts, not contracts)","type":"boolean"},"source":{"description":"where the data was read from","type":"string"}},"required":["chain","chain_id","address","is_contract","account_kind","code_size_bytes","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":1271,"error":null}],"description_full":"Contract or wallet check on 16 EVM chains: deployed bytecode size, account kind including EIP-7702 delegated accounts, optional runtime bytecode.","last_updated":"2026-10-21T02:27:05.862Z","schemes":["exact"]}