Speed up or cancel transactions

Replace a pending transaction with a higher-fee version to speed it up, or cancel it by dropping the nonce.

For EVM-style pending transactions, CAW supports two recovery flows:

• speedup_transaction to replace the pending transaction with a higher-fee version
• drop_transaction to cancel it with a replacement transaction to the same nonce

Speed up a transaction

CLI

caw tx speedup --tx-id <TRANSACTION_UUID>

Python SDK

result = await client.speedup_transaction(
    wallet_uuid=wallet_id,
    transaction_uuid=transaction_uuid,
    fee={
        "fee_type": "EVM_EIP_1559",
        "max_fee_per_gas": "50000000000",
        "max_priority_fee_per_gas": "2000000000",
    },
)

TypeScript SDK

const result = (await txApi.speedupTransaction(walletId, transactionUuid, {
  fee: {
    fee_type: 'EVM_EIP_1559',
    max_fee_per_gas: '50000000000',
    max_priority_fee_per_gas: '2000000000',
  },
})).data.result;

Drop a transaction

CLI

caw tx drop --tx-id <TRANSACTION_UUID>

Python SDK

await client.drop_transaction(
    wallet_uuid=wallet_id,
    transaction_uuid=transaction_uuid,
)

TypeScript SDK

await txApi.dropTransaction(walletId, transactionUuid, {});

When to use which

Action	Use when
speedup_transaction	You still want the same operation to execute, just faster
drop_transaction	You want to cancel the pending operation altogether

For recovery, always pair these actions with Transaction Tracking.