Transfer

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": {...}
  }'

{
  "intent_id": "int_abc123",
  "status": "pending",
  "tx_hash": "0x..."
}

POST

sdk

transfer

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": {...}
  }'

{
  "intent_id": "int_abc123",
  "status": "pending",
  "tx_hash": "0x..."
}

Execute a gasless cross-chain USDC transfer.

For Solana source transfers, use /sdk/v1/solana/build-tx instead.

Request Body

string

required

Source chain: ETH, BASE, ARB, POLYGON

string

required

Destination chain: ETH, BASE, ARB, POLYGON, SOLANA

string

required

Amount in USDC (e.g., "100.00")

string

required

Recipient address

object

required

ERC-2612 permit signature

Response

string

Transfer intent ID

string

Initial status: pending

string

Source transaction hash

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": {...}
  }'

{
  "intent_id": "int_abc123",
  "status": "pending",
  "tx_hash": "0x..."
}

Overview

Transfers

Routes

Solana

Request Body

Response

​Request Body

​Response

Request Body

Response