# 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: 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.citrea.xyz/developer-documentation/ecosystem-tooling/interop-bridges-swaps.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.