The @uniswap/token-lists (beta) is an open-source package designed to facilitate the creation and management of token lists for decentralized applications (dApps), such as the Uniswap interface. By providing a standardized JSON schema, this package specifies the format for token metadata, including address and decimals, enabling efficient dApp integration. Users can author and maintain their own token lists, which consist of JSON blobs representing ERC20 token metadata, and must adhere to the schema for compatibility. For validation, the package supports integration with tools like Ajv, ensuring token lists are correctly formatted before deployment. Incorporating semantic versioning helps manage updates, with major, minor, and patch versions corresponding to changes in token details. The package promotes best practices for deploying lists, suggesting IPFS pinning and ENS referencing for seamless accessibility and enhanced user experience.