{"slug":"agent-data-tools-revmesh2074-workers-dev-zksync-nft-balance-8dab67","title":"NFT balance, zkSync","host":"agent-data-tools.revmesh2074.workers.dev","method":"GET","resource":"https://agent-data-tools.revmesh2074.workers.dev/zksync/nft-balance","category":"market","description":"NFT balance, zkSync. How many NFTs of one ERC-721 collection a wallet holds on zkSync Era (balanceOf), with the collection's name and symbol. Use to check a holder before a token-gated action or to see whether a wallet still holds a collection; for who holds one token id use zksync_nft_owner. Both i","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":16,"reported_calls_30d":0,"reported_payers_30d":0,"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":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","contract":"0x0616e5762c1E7Dc3723c50663dF10a162D690a86"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"address":{"description":"0x wallet address","examples":["0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"],"pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},"contract":{"description":"0x ERC-721 collection contract address","examples":["0x0616e5762c1E7Dc3723c50663dF10a162D690a86"],"pattern":"^0x[0-9a-fA-F]{40}$","type":"string"}},"required":["contract","address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"address":{"type":"string"},"balance":{"type":"string"},"chain":{"type":"string"},"chainId":{"type":"number"},"contract":{"type":"string"},"name":{"type":"string"},"symbol":{"type":"string"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-26","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":16,"error":null}],"description_full":"NFT balance, zkSync. How many NFTs of one ERC-721 collection a wallet holds on zkSync Era (balanceOf), with the collection's name and symbol. Use to check a holder before a token-gated action or to see whether a wallet still holds a collection; for who holds one token id use zksync_nft_owner. Both inputs are 0x addresses; a missing contract is 404, a contract that is not ERC-721 422, both uncharged.","last_updated":"2026-10-26T12:24:03.899Z","schemes":["exact"]}