> For the complete documentation index, see [llms.txt](https://docs.citrea.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.citrea.xyz/developer-documentation/ecosystem-tooling/interop-bridges-swaps.md). # Interop, Bridges & Swaps ### Hyperlane [Hyperlane](https://docs.hyperlane.xyz/) is a permissionless interoperability framework that lets you pass arbitrary messages/tokens between Citrea and any other Hyperlane‑connected chain. Because deployments are contract‑level (no governance votes), you can spin up **Warp Routes** for your bApp in minutes and own the bridge logic end‑to‑end. *** ### LayerZero [LayerZero](https://docs.layerzero.network/) provides ultra‑lightweight cross‑chain messaging secured by Decentralised Verifier Networks (DVNs). Citrea Mainnet & Testnet is fully integrated in LayerZero v2, so builders can call contracts, move tokens or tap existing LayerZero SDK helpers using the familiar endpoint config. *** ### Garden Finance [Garden Finance](https://testnet.garden.finance/?input-chain=citrea_testnet\&input-asset=cBTC) offers intents‑based BTC swaps that bridge native Bitcoin to cBTC on Citrea, using Hashed‑Timelock Contracts behind the scenes. Garden also offers an SDK for bApp developers. You can find the SDK documentation [here](https://docs.garden.finance/developers/sdk/overview). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://docs.citrea.xyz/developer-documentation/ecosystem-tooling/interop-bridges-swaps.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.