Introduction

Swap Router API

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Using Swap Router API, you can find the best route to exchange assets and make the exchange.

Step by step:

1. Lookup chains you want to swap Supported Chains
2. Lookup addresses of tokens you want to swap, for example ‘0xxx’ , ‘0xxxx’ for MATIC -> USDC
3. Lookup spender is trusted Spender
4. Check for allowance of swap router contract to spend source asset (/approve/allowance) Check Allowance
5. If necessary, give approval for swap router to spend source token (/approve/transaction) Allowance transaction
6. Monitor the best exchange route using (/swap/calculateTrade) Swap Route
7. Monitor the best cross chain exchange route using (/swap/calculateCrossTrade) Cross Chain Route

Swap API Endpoint:

Version	Note	Endpoint
V1	The latest version	http://router-api.openliq.com/