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Uniswap V3 Pool Address Lookup
x402
Uniswap V3 Pool Address Lookup is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Returns the deployed Uniswap V3 pool contract address for a given token pair and fee tier on major EVM networks.
Price / call$0.001
Success—
StatusUnknown
How this service works
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.
Output
Returns the 0x-prefixed Ethereum contract address of the Uniswap V3 pool for the specified token pair, fee tier, and network. If no pool has been deployed for that combination, returns the zero address (0x0000000000000000000000000000000000000000).
Example use cases
Example prompt
“What's the Uniswap V3 pool address for USDC and WETH at the 0.05% fee tier on Arbitrum?”
Technical details
Endpoint
POSThttps://agent402.tools/api/dex-pairWhen to prefer
Use this endpoint when you need to programmatically resolve the exact on-chain Uniswap V3 pool contract address for a token pair and fee tier without running your own node or calling the factory contract directly. Ideal for agents building DeFi workflows, routing swaps, checking pool existence, or fetching pool-specific data across Ethereum, Base, Polygon, Arbitrum, or Optimism.
Side effects
- Invalid or non-ERC-20 token address returns an error
- Unsupported fee tier (not 100, 500, 3000, or 10000) returns an error
- Unsupported network name returns a validation error
- Pool not yet deployed returns the zero address (not an error, but pool does not exist)
- Malformed 0x address returns a parsing error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fee | number | Fee tier in 1e-6 units: 100, 500, 3000, or 10000 (0.01% / 0.05% / 0.30% / 1.00%). |
| tokenA | string | 0x-prefixed ERC-20 contract address. |
| tokenB | string | 0x-prefixed ERC-20 contract address (other side of the pair). |
| network | string | ethereum / base / polygon / arbitrum / optimism (default base). |
Output
Schema · Response
{
"type": "json",
"example": {
"fee": 500,
"tokenA": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"tokenB": "0x4200000000000000000000000000000000000006",
"network": "base",
"poolAddress": "0xd0b53d9277642d899df5c87a3966a349a798f224"
}
}Tags
x402
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