{"slug":"ari001-tailb4ac3a-ts-net-v1-ventures-ethereum-contract-abi-s-066c83","title":"Returns the amount of ERC20 tokens that a spender is allowed to withdraw from an","host":"ari001.tailb4ac3a.ts.net","method":"GET","resource":"https://ari001.tailb4ac3a.ts.net/v1/ventures/ethereum_contract_abi_service/erc20_allowance","category":"market","description":"Returns the amount of ERC20 tokens that a spender is allowed to withdraw from an owner's account, via the allowance method. Inputs: contract address, owner address, spender address. Output: allowance amount as a uint256. Query: token (ERC-20 contract, 0x + 40 hex), owner (0x + 40 hex), spender (0x +","price_listed":0.003,"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":3,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"owner":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","spender":"0x000000000022D473030F116dDEE9F6B43aC78BA3","token":"0xdAC17F958D2ee523a2206206994597C13D831ec7"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"owner":{"description":"0x + 40 hex","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"spender":{"description":"0x + 40 hex","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"},"token":{"description":"ERC-20 contract, 0x + 40 hex","pattern":"^0x[a-fA-F0-9]{40}$","type":"string"}},"required":["token","owner","spender"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"chain":{"type":"string"},"error":{"description":"present when ok is false","type":"string"},"method":{"type":"string"},"ok":{"type":"boolean"},"result":{"description":"the uint256 as a decimal string","type":"string"},"service":{"type":"string"}},"required":["ok","service"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Returns the amount of ERC20 tokens that a spender is allowed to withdraw from an owner's account, via the allowance method. Inputs: contract address, owner address, spender address. Output: allowance amount as a uint256. Query: token (ERC-20 contract, 0x + 40 hex), owner (0x + 40 hex), spender (0x + 40 hex).","last_updated":"2026-09-24T04:08:03.474Z","schemes":["exact"]}