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

# Create Cross-Chain Transfer

> Transfer assets between different blockchain networks

## Method Signature

```typescript theme={null}
align.crossChain.createTransfer(
  customerId: string,
  data: CreateCrossChainTransferRequest
): Promise<CrossChainTransfer>
```

## Parameters

<ParamField path="customerId" type="string" required>
  The unique customer identifier (UUID format)
</ParamField>

<ParamField body="source_network" type="string" required>
  Source blockchain: `ethereum`, `polygon`, `base`, `arbitrum`, `solana`, `tron`
</ParamField>

<ParamField body="source_token" type="'usdc' | 'usdt' | 'eurc'" required>
  Token to transfer
</ParamField>

<ParamField body="destination_network" type="string" required>
  Destination blockchain
</ParamField>

<ParamField body="destination_token" type="'usdc' | 'usdt' | 'eurc'" required>
  Token to receive (usually same as source)
</ParamField>

<ParamField body="amount" type="string" required>
  Amount to transfer
</ParamField>

<ParamField body="destination_address" type="string" required>
  Wallet address on destination chain
</ParamField>

## Example

<Tabs>
  <Tab title="TypeScript">
    ```typescript theme={null}
    import Align from "@tolbel/align";

    const align = new Align({
      apiKey: process.env.ALIGN_API_KEY!,
      environment: "sandbox",
    });

    // Transfer USDC from Ethereum to Polygon
    const transfer = await align.crossChain.createTransfer(customerId, {
      source_network: "ethereum",
      source_token: "usdc",
      destination_network: "polygon",
      destination_token: "usdc",
      amount: "100.00",
      destination_address: "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
    });

    console.log(`Transfer ID: ${transfer.id}`);
    console.log(`Status: ${transfer.status}`);
    ```
  </Tab>

  <Tab title="JavaScript">
    ```javascript theme={null}
    const transfer = await align.crossChain.createTransfer(customerId, {
      source_network: "ethereum",
      source_token: "usdc",
      destination_network: "polygon",
      destination_token: "usdc",
      amount: "100.00",
      destination_address: "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
    });

    console.log("Transfer ID:", transfer.id);
    ```
  </Tab>
</Tabs>

## Supported Routes

| Source   | Destination                 | Tokens           |
| -------- | --------------------------- | ---------------- |
| Ethereum | Polygon, Base, Arbitrum     | USDC, USDT       |
| Polygon  | Ethereum, Base, Arbitrum    | USDC, USDT, EURC |
| Base     | Ethereum, Polygon, Arbitrum | USDC             |
| Arbitrum | Ethereum, Polygon, Base     | USDC             |
| Solana   | Ethereum, Polygon           | USDC             |

<Info>
  Cross-chain transfers typically complete within 10-30 minutes depending on
  network congestion.
</Info>

## Related Methods

<CardGroup cols={2}>
  <Card title="Get Transfer" icon="eye" href="/docs/api/cross-chain/get-transfer">
    Track transfer status
  </Card>

  <Card title="Complete Transfer" icon="check" href="/docs/api/cross-chain/complete-transfer">
    Submit transaction hash
  </Card>
</CardGroup>