> ## Documentation Index
> Fetch the complete documentation index at: https://api-docs.sw4p.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Transfer

> Execute a cross-chain transfer

Execute a gasless cross-chain USDC transfer.

<Note>
  For Solana source transfers, use `/sdk/v1/solana/build-tx` instead.
</Note>

## Request Body

<ParamField body="from" type="string" required>
  Source chain: `ETH`, `BASE`, `ARB`, `POLYGON`
</ParamField>

<ParamField body="to" type="string" required>
  Destination chain: `ETH`, `BASE`, `ARB`, `POLYGON`, `SOLANA`
</ParamField>

<ParamField body="amount" type="string" required>
  Amount in USDC (e.g., `"100.00"`)
</ParamField>

<ParamField body="recipient" type="string" required>
  Recipient address
</ParamField>

<ParamField body="permit" type="object" required>
  ERC-2612 permit signature
</ParamField>

## Response

<ResponseField name="intent_id" type="string">
  Transfer intent ID
</ResponseField>

<ResponseField name="status" type="string">
  Initial status: `pending`
</ResponseField>

<ResponseField name="tx_hash" type="string">
  Source transaction hash
</ResponseField>

<RequestExample>
  ```bash theme={null}
  curl -X POST https://api.sw4p.io/sdk/v1/transfer \
    -H "Content-Type: application/json" \
    -H "X-API-Key: sk_..." \
    -d '{
      "from": "BASE",
      "to": "SOLANA",
      "amount": "100.00",
      "recipient": "5abc...",
      "permit": {...}
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json theme={null}
  {
    "intent_id": "int_abc123",
    "status": "pending",
    "tx_hash": "0x..."
  }
  ```
</ResponseExample>