> ## 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

**Liquidity Fragmentation**

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

## The Problem

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


**Fragmented Liquidity**

Each chain maintains isolated pools, limiting depth and increasing slippage.

**Complex Integration**

Builders must integrate with dozens of chains individually.

**Poor UX**

Users manually bridge assets and manage multiple wallets.

**Capital Inefficiency**

Assets locked on specific chains can't access other opportunities.

## 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
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

**[Try AnySpend](https://docs.anyspend.com)**

Get started with the AnySpend SDK.

**[Integration Guide](https://docs.anyspend.com/anyspend/installation)**

Learn how to integrate AnySpend.

**[API Reference](https://docs.anyspend.com/anyspend/api-reference)**

Explore the complete API documentation.

**[Join Discord](https://discord.gg/b3dotfun)**

Connect with other builders.