> ## Documentation Index
> Fetch the complete documentation index at: https://docs.b3.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Cross-Chain Liquidity

> How AnySpend (built by B3) abstracts execution layers to provide unified access to liquidity across all blockchain networks

<iframe className="w-full aspect-video rounded-xl" src="https://customer-gg6qs7nm5ue94t64.cloudflarestream.com/4453d7f20bb58fb822f0e114e4887ab5/iframe?muted=true&loop=true&autoplay=true&poster=https%3A%2F%2Fcustomer-gg6qs7nm5ue94t64.cloudflarestream.com%2F4453d7f20bb58fb822f0e114e4887ab5%2Fthumbnails%2Fthumbnail.jpg%3Ftime%3D%26height%3D600" title="Liquidity Fragmentation" frameBorder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowFullScreen />

<Note>
  [Explore B3's multichain ecosystem on explorer.b3.fun](https://explorer.b3.fun/chains)
</Note>

## The Problem

Appchains, L2s, and L3s have isolated liquidity, making it annoying to build experiences without having to bridge assets across chains.

<CardGroup cols={2}>
  <Card title="Fragmented Liquidity" icon="puzzle-piece">
    Each chain maintains isolated pools, limiting depth and increasing slippage.
  </Card>

  <Card title="Complex Integration" icon="gears">
    Builders must integrate with dozens of chains individually.
  </Card>

  <Card title="Poor UX" icon="face-frown">
    Users manually bridge assets and manage multiple wallets.
  </Card>

  <Card title="Capital Inefficiency" icon="chart-line-down">
    Assets locked on specific chains can't access other opportunities.
  </Card>
</CardGroup>

## Access Liquidity Across Chains

Powered by our product, AnySpend, operates at the client execution layer, sitting between user intent and blockchain execution:

### How It Works

1. **Deposit from any chain**: Accepts tokens from most chains
2. **Intent-Based**: Users express what they want, not how to achieve it
3. **Route Discovery**: Finds optimal paths across all supported chains
4. **Atomic Execution**: Transactions execute atomically or fail gracefully
5. **Unified Experience**: Complex operations appear as single transactions

```mermaid theme={null}
flowchart TD
    A[User Intent] --> B[Deposit from Any Chain]
    B --> C{AnySpend Processing}
    C --> D[Route Discovery]
    D --> E[Find Optimal Path]
    E --> F[Atomic Execution]
    F --> G[Success?]
    G -->|Yes| H[Unified Transaction Complete]
    G -->|No| I[Graceful Failure & Rollback]
    
    B --> B1[Ethereum]
    B --> B2[Solana]
    B --> B3[Polygon]
    B --> B4[Arbitrum]
    B --> B5[Base]
    B --> B6[B3 & Game Chains]
    
    H --> J[Assets Available on Target Chain]
    I --> K[Original Assets Returned]
    
    style A fill:#e1f5fe
    style C fill:#f3e5f5
    style H fill:#e8f5e8
    style I fill:#ffebee
```

### Supported Chains

AnySpend provides universal chain support:

* **EVM Chains**: Most EVM chains, including Ethereum, Polygon, Arbitrum, Base, BSC, Avalanche
* **Solana**: Full integration with Solana's ecosystem
* **B3 Ecosystem**: Native integration with B3 and game chains

## Next Steps

<CardGroup cols={2}>
  <Card title="Try AnySpend" icon="rocket" href="/anyspend/introduction">
    Get started with the AnySpend SDK.
  </Card>

  <Card title="Integration Guide" icon="book" href="/anyspend/installation">
    Learn how to integrate AnySpend.
  </Card>

  <Card title="API Reference" icon="code" href="/anyspend/api-reference/introduction">
    Explore the complete API documentation.
  </Card>

  <Card title="Join Discord" icon="discord" href="https://discord.gg/b3dotfun">
    Connect with other builders.
  </Card>
</CardGroup>