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

# Agglayer Overview

> Agglayer connects chains with shared liquidity, atomic cross-chain transactions, and cryptographic security.

## Overview

Agglayer is Polygon's interoperability layer. It connects chains so assets can move without wrapping, operations can be atomic across chains, and security is enforced through cryptographic proofs rather than trusted parties.

CDK chains connect to Agglayer by default. Other chains can integrate independently.

**What Agglayer provides:**

* **Unified liquidity**: Assets maintain their identity across connected chains. No wrapped tokens required.
* **Atomic cross-chain operations**: Transactions either succeed on all involved chains or fail entirely — no partial states.
* **Mathematical security**: Pessimistic proofs ensure a compromised chain cannot drain more than its own deposits. Damage is contained.
* **Chain sovereignty**: Connected chains keep their own architecture and governance. Agglayer adds interoperability without requiring changes to how a chain operates.

## Explore Agglayer

<CardGroup cols={2}>
  <Card title="Core Concepts" icon="lightbulb" href="/interoperability/agglayer/core-concepts/">
    Understand how Agglayer works: the three security gateways, proof systems, and how chains connect to the network.
  </Card>

  <Card title="Get Started" icon="rocket" href="/interoperability/agglayer/get-started/">
    Start building cross-chain applications on Agglayer-connected chains.
  </Card>

  <Card title="Integrations" icon="plug" href="/interoperability/agglayer/integrations/">
    APIs and services for integrating Agglayer bridge functionality into your applications.
  </Card>
</CardGroup>