Interop, Bridges & Swaps

Hyperlane

Hyperlane 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.

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LayerZero

LayerZero 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.

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Garden Finance

Garden Finance 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.