How to find the 0x swap API liquidity sources for each chain

Last updated: February 4, 2026

Step-by-step guide for finding the swap API liquidity sources for each chain.

Use the API endpoint /swap/v1/sources to get the liquidity sources per chain.

You will need to specify the root-endpoint for the chain you are interested in, for example, https://polygon.api.0x.org/swap/v1/sources for the Polygon Network or https://api.0x.org/swap/v1/sources for Ethereum Mainnet.

See the Swap API References for a full list of endpoints we support.