{"slug":"agent402-tools-api-dex-pair-7c1d25","title":"Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Bas","host":"agent402.tools","method":"POST","resource":"https://agent402.tools/api/dex-pair","category":"market","description":"Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been deployed for that combination yet.","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":913,"reported_calls_30d":5,"reported_payers_30d":2,"networks":["algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","eip155:10","eip155:1329","eip155:137","eip155:143","eip155:42161","eip155:42220","eip155:43114","eip155:4663","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","stellar:pubnet"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"fee":500,"network":"base","tokenA":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","tokenB":"0x4200000000000000000000000000000000000006"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"fee":{"description":"Fee tier in 1e-6 units: 100, 500, 3000, or 10000 (0.01% / 0.05% / 0.30% / 1.00%).","type":"number"},"network":{"description":"ethereum / base / polygon / arbitrum / optimism (default base).","type":"string"},"tokenA":{"description":"0x-prefixed ERC-20 contract address.","type":"string"},"tokenB":{"description":"0x-prefixed ERC-20 contract address (other side of the pair).","type":"string"}},"required":["tokenA","tokenB","fee"]},"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":{"fee":{"type":"integer"},"network":{"type":"string"},"poolAddress":{"type":"string"},"tokenA":{"type":"string"},"tokenB":{"type":"string"}},"required":["network","tokenA","tokenB","fee","poolAddress"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":913,"error":null}],"description_full":"Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been deployed for that combination yet.","last_updated":"2026-09-07T13:19:59.4Z","schemes":["exact","upto"]}