Unstuck Transaction

Resolve stuck transactions.

Endpoint

POST /unstuck

Description

Resolves stuck transactions by replacing them with higher gas price transactions.

Request Body

{
  "rpc": "https://polygon-amoy.infura.io/v3/{key}",
  "signer": {
    "clientId": "your-fireblocks-client-id",
    "versionId": "1"
  },
  "percentTxGasOvershoot": 50,
  "percentTxGasPriceOvershoot": "50"
}

Response

Same as Execute Operation endpoint.

Use Cases

Transaction recovery: Resolve stuck transactions by increasing gas price
Network congestion: Handle transactions stuck due to network congestion
Gas price optimization: Replace low gas price transactions with higher ones
User experience: Automatically resolve stuck transactions for users

Best Practices

Monitor transactions: Track transaction status to identify stuck transactions
Configure overshoot: Set appropriate gas price overshoot for replacement
Handle failures: Check for errors and handle replacement failures
User notification: Notify users when transactions are unstuck

Get Receipt - Check transaction status
Execute Operation - Execute new transactions

💡 Tip: This endpoint replaces stuck transactions with higher gas price versions. Use it when transactions are pending for extended periods due to low gas prices.