{"slug":"api-jagent-dev-v1-nft-check-9b7a83","title":"Checks an NFT collection contract on Base","host":"api.jagent.dev","method":"POST","resource":"https://api.jagent.dev/v1/nft-check","category":"other","description":"Checks an NFT collection contract on Base. JSON body: address (0x + 40 hex), optional token_id (decimal) and blocks (1-1000, default 300). Returns standard (ERC-721 or ERC-1155), name, symbol, supply, owner, proxy status, royalty support; with token_id the holder, metadata URI and royalty; for ERC-7","price_listed":0.005,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"address":"0x03c4738ee98ae44591e1a4a4f3cab6641d95dd9a","blocks":"50"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"address":{"type":"string"},"blocks":{"type":"string"}},"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"address":{"type":"string"},"chain":{"type":"string"},"is_proxy":{"type":"boolean"},"name":{"type":"string"},"notes":{"type":"array"},"recent_activity":{"properties":{"blocks_scanned":{"type":"number"},"burns":{"type":"number"},"mints":{"type":"number"},"transfers":{"type":"number"}},"type":"object"},"standard":{"type":"string"},"supports_royalty_info":{"type":"boolean"},"symbol":{"type":"string"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Checks an NFT collection contract on Base. JSON body: address (0x + 40 hex), optional token_id (decimal) and blocks (1-1000, default 300). Returns standard (ERC-721 or ERC-1155), name, symbol, supply, owner, proxy status, royalty support; with token_id the holder, metadata URI and royalty; for ERC-721 recent mints and transfers. Non-NFT contracts return not_nft. Body max 2 KB. Takes 2-10 s. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.","last_updated":"2026-10-04T15:24:22.941Z","schemes":["exact"]}