Solana Gasless

​

Overview

​

Requirements

• A fee payer vault account in your workspace, holding enough SOL to pay fees. The fee payer must be in the same workspace. External workspaces, the Fireblocks relay, and Wallet Pools are not available as the fee payer on Solana.
• Same key set. The source vault account must share a key set with the fee payer vault account.

​

Step 1. Set the fee payer in the Console

​

Step 2. Send a transaction

{
  "assetId": "SOL_USDC_PTHX",
  "amount": "250",
  "source": {
    "type": "VAULT_ACCOUNT",
    "id": "42"
  },
  "destination": {
    "type": "ONE_TIME_ADDRESS",
    "oneTimeAddress": {
      "address": "7xKX..."
    }
  },
  "useGasless": false // Optional - Set false to pay the fee from the source vault account instead
}

• useGasless: omit it to use the fee payer. Set false to have the source vault account pay its own fee.
• source: the vault account needs the token balance only. When the source is the fee payer itself, the transaction is sent as a standard transaction.
• assetId: an SPL token. SOL transfers are not covered.

​

Step 3. Confirm the fee payer paid

{
  "id": "9d3a...",
  "status": "COMPLETED",
  "assetId": "SOL_USDC_PTHX",
  "feePayerInfo": {
    "feePayerAccountId": "3"
  }
}

​

Troubleshooting

​

Related

• Gasless Transactions Overview: compare gasless mechanisms across chains.
• EVM Gasless (Universal Gasless): gasless transactions on EVM chains.
• Monitoring transaction statuses: track transactions through webhooks.