> ## Documentation Index
> Fetch the complete documentation index at: https://docs.near.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Omni Bridge Overview

> Learn about Omni Bridge, a multi-chain asset bridge that enables secure and efficient transfers between blockchain networks using Chain Signatures and MPC technology.

The [Omni Bridge](https://github.com/Near-One/omni-bridge) is a multi-chain asset bridge that facilitates secure and efficient asset transfers between different blockchain networks. It solves key challenges in cross-chain communication by leveraging [Chain Signatures](/chain-abstraction/chain-signatures) and its decentralized [Multi-Party Computation (MPC) service](/chain-abstraction/chain-signatures#multi-party-computation-service) to enable trustless cross-chain asset transfers.

<Tip>
  To learn more see [How Omni Bridge Works](./how-it-works).
</Tip>

## Supported Chains

Omni Bridge launches with a hybrid architecture, utilizing different verification methods based on chain-specific requirements and technical constraints. This approach allows us to support multiple chains from day one while progressively transitioning to full Chain Signatures integration.

Currently the supported chains are:

* **Ethereum** - *(Light client + Chain Signatures)*
* **Bitcoin** - *(Light client + Chain Signatures)*
* **Solana** - *(Wormhole + Chain Signatures)*
* **Base** - *(Wormhole + Chain Signatures)*
* **BNB** - *(Wormhole + Chain Signatures)*
* **Arbitrum** - *(Wormhole + Chain Signatures)*

<Info>
  See [Omni Bridge Roadmap](./roadmap) for more details.
</Info>

## Resources

* [Near-One/omni-bridge](https://github.com/Near-One/omni-bridge) - Omni Bridge repository
* [Near-One/bridge-sdk-js](https://github.com/Near-One/bridge-sdk-js) - JavaScript SDK
* [Near-One/bridge-sdk-rs](https://github.com/Near-One/bridge-sdk-rs) - Rust SDK