# CrossChain Swap API ## Overview The Native Bridge API enables seamless cross-chain token bridging and swapping across multiple blockchain networks, utilising the same reliable Native Swap Engine and Native Credit Pool for superb pricing and performance. ## Endpoints Our API enables users to fetch cross-chain bridge quotes, generate transaction data for executing on-chain bridge transactions via Native's infrastructure, and manage their bridging lifecycle. The intelligent routing algorithm ensures users receive the best possible market prices for optimal cross-chain trading outcomes. * **Indicative quote**: Use `GET /bridge/indicative-quote` to obtain fast, indicative quotes for bridging tokens across chains. This endpoint provides pricing information without generating calldata, making it ideal for displaying estimated rates to users before they commit to a transaction. * **Firm quote**: Use `GET /bridge/firm-quote` to obtain executable transaction data necessary to initiate cross-chain bridge transactions. This endpoint returns the complete calldata, target contract address, and all necessary parameters for executing the bridge transaction on the source chain. * **Transaction status**: Use `GET /bridge/tx-status` to check the current status of a bridging transaction. This endpoint allows you to monitor the progress of your bridge request from initiation through completion, refund, or claim. * **Transaction history**: Use `GET /bridge/tx-history` to retrieve a paginated list of all bridge transactions for a specific user address. This endpoint enables users to view their complete bridging history across different chains. * **Refund**: Use `GET /bridge/refund` to request a refund for a bridging transaction that has failed or cannot be completed. This endpoint initiates the refund process for tokens that were locked but not successfully bridged. --- # 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.native.org/native-dev/build-with-native/swap-aggregators/crosschain-swap-api.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.