{"slug":"saylorinnovations-com-api-chain-interfaces-31a60d","title":"ERC-165 interface detection for 16 EVM chains","host":"saylorinnovations.com","method":"GET","resource":"https://saylorinnovations.com/api/chain/interfaces","category":"other","description":"ERC-165 interface detection for 16 EVM chains: ERC-721, ERC-1155, metadata, royalties and update events, with a kind label and ERC-20 hint.","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":523,"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":"0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D"},"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 probe","type":"string"}},"required":["chain","contract"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"answers_erc20_calls":{"description":"true when decimals() and totalSupply() answer","type":"boolean"},"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 probed","type":"string"},"erc165_conformant":{"description":"true when ERC-165 behaves correctly","type":"boolean"},"kind":{"description":"best label for the contract type","type":"string"},"note":{"description":"plain-language reading of the result","type":"string"},"source":{"description":"where the data was read from or how it was computed","type":"string"},"supports":{"description":"flag per interface from supportsInterface()","type":["object","null"]}},"required":["chain","chain_id","contract","kind","supports","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":523,"error":null}],"description_full":"ERC-165 interface detection for 16 EVM chains: ERC-721, ERC-1155, metadata, royalties and update events, with a kind label and ERC-20 hint.","last_updated":"2026-10-21T04:11:31.936Z","schemes":["exact"]}