The Uniswap Routing API is an open-source tool designed for the Uniswap V3 protocol, offering an efficient mechanism for swapping tokens by leveraging the @uniswap/smart-order-router. Deployed on AWS, this API streamlines token exchanges by identifying optimal routes, requiring an AWS account for development and testing. Deployment involves configuring environment variables to support various blockchain networks and setting up integrations for enhanced simulations with Tenderly and Alchemy. The package supports comprehensive testing strategies, including unit, integration, and end-to-end tests, enabling accurate swap execution evaluations on a Hardhat mainnet fork. Ideal for developers seeking to optimize token swaps within the Uniswap ecosystem, this API prioritizes both technical functionality and precise transaction estimates.