# Welcome

## Caldera Metalayer Documentation <a href="#page-title" id="page-title"></a>

Cross-chain interoperability framework for rollups

### [​](https://docs.caldera.xyz/metalayer/welcome#intro)Intro <a href="#intro" id="intro"></a>

Welcome to the Metalayer, Caldera’s cross-chain interoperability framework. Designed to revolutionize how rollups interact with other chains, the Metalayer provides a seamless, secure, and efficient platform for cross-chain operations.

<figure><img src="https://mintlify.s3.us-west-1.amazonaws.com/metalayer/metalayer/images/metalayer-hero.png" alt=""><figcaption></figcaption></figure>

### [​](https://docs.caldera.xyz/metalayer/welcome#why-metalayer%3F)Why Metalayer? <a href="#why-metalayer-3f" id="why-metalayer-3f"></a>

The Metalayer empowers developers and protocols to overcome the constraints of isolated blockchain ecosystems.

* **Launch Truly Interoperable Chains**: Deploy new Caldera rollups with the Metalayer interoperability from day zero, or integrate the Metalayer into your existing Caldera chain to instantly connect to a broader ecosystem.
* **Build Sophisticated Cross-Chain dApps**: Utilize the Metalayer’s Developer Toolkit to create applications that facilitate efficient communication and value transfer between rollups, regardless of their underlying stack.
* **Access Unified Liquidity**: Tap into a growing network of shared liquidity, enabling more efficient markets and better user experiences for your applications.
* **Abstract Complexity**: Focus on your core application logic and user experience, while the Metalayer handles the intricacies of cross-chain communication, optimal routing, and secure settlement.

### [​](https://docs.caldera.xyz/metalayer/welcome#request-widget-integration) <a href="#request-widget-integration" id="request-widget-integration"></a>