# External Integrations

- [Account Abstraction using Biconomy](/altlayer-documentation/external-integrations/account-abstraction-using-biconomy.md)
- [Enabling permissionless interoperability on AltLayer Rollup with Hyperlane](/altlayer-documentation/external-integrations/enabling-permissionless-interoperability-on-altlayer-rollup-with-hyperlane.md)
- [Deplying Hyperlane Warp Routes for ERC20 Token Bridging](/altlayer-documentation/external-integrations/enabling-permissionless-interoperability-on-altlayer-rollup-with-hyperlane/deplying-hyperlane-warp-routes-for-erc20-token-bridging.md)
- [Running Off-chain Agents](/altlayer-documentation/external-integrations/enabling-permissionless-interoperability-on-altlayer-rollup-with-hyperlane/running-off-chain-agents.md)
- [Setting up the bridging UI](/altlayer-documentation/external-integrations/enabling-permissionless-interoperability-on-altlayer-rollup-with-hyperlane/setting-up-the-bridging-ui.md)
- [Cross-chain Interoperability using Celer](/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer.md): Overview
- [Fungible Token Bridging](/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer/fungible-token-bridging.md)
- [Non-fungible Token Bridging](/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer/non-fungible-token-bridging.md)
- [Generic Message Passing](/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer/generic-message-passing.md)
- [cBridge SDK](/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer/cbridge-sdk.md)