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

# Bridge Aggregator

> Unified cross-chain transfers with optimal routing across 50+ networks

Caldera's bridge aggregator provides a single interface for cross-chain transfers while intelligently routing through the best available bridge provider for each transaction. Instead of users navigating multiple bridge UIs with different security models and wait times, the bridge aggregator aggregates quotes and presents the optimal route.

## The Problem

Traditional cross-chain transfers require users to:

* **Choose between multiple bridges** with different trade-offs
* **Navigate separate interfaces** for each bridge provider
* **Understand complex security models** and settlement times
* **Manage wrapped tokens** and liquidity requirements

## Single Interface, Multiple Providers

Metalayer provides unified access to cross-chain transfers through:

* **[SDK](/metalayer/sdk/getting-started)**: Complete developer toolkit for custom applications
* **[Widget](/metalayer/widget/getting-started)**: Embeddable UI component for instant deployment

Behind this single interface, Metalayer aggregates quotes from [multiple bridge providers](/metalayer/resources/aggregated-bridges) across [50+ supported networks](/metalayer/resources/widget-supported-chains), selecting the optimal route for each transfer.

## Next Steps

<CardGroup cols={2}>
  <Card title="SDK Documentation" icon="code" href="/metalayer/sdk/getting-started">
    Complete integration guide
  </Card>

  <Card title="Bridge Widget" icon="window" href="/metalayer/widget/getting-started">
    Embed ready-made UI
  </Card>
</CardGroup>