# Zap-in & Zap-out ## Current Situation Most services require the consumption or generation of specific tokens, which allows users to directly access the services without affecting their asset configuration. This lowers the barriers to entry for various services. ## Zap any Token in / out By using the router with Permit2, users can have a better experience in cross-protocol token authorization, and the Router can combine multiple transactions at once. For example, integrating DEX Swap functionality before or after means users can use any token input into any protocol function, or exchange it into any token when withdrawing tokens. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.protocolink.com/use-cases/zap-in-and-zap-out.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.