Signing transactions

📘
This feature is only available for EVM and Solana based blockchains.

Required Scopes

WALLET_TRANSACTION_SIGN

How to sign a transaction

Here's an example curl snippet to show how to send the request:

curl "https://staging.crossmint.com/api/v1-alpha1/wallets/ethereum:0x7e3c09cB46A351Db7834c0E0Bc0CB0cD79A/transactions/signatures" \
  -H "X-PROJECT-ID: your_project_id" \
  -H "X-CLIENT-SECRET: your_client_secret" \
  -H 'Content-Type: application/json' \
  --data '
  {
    "transaction": {
      "nonce": 32168,
      "gasPrice": "34329341655",
      "gasLimit": 21000,
      "to": "0x4675c7e5baafbffbca748158becba61ef3b03",
      "value": "37821945100437496",
      "data": "",
      "from": "0x199d5ed7f45f4ee35960cf22eade205b253f"
    }
  }
'

Transaction parameters explained:

Parameter	Type	Description
`to`	string	The destination address.
`value`	string	The amount of Ether to send, in wei.
`gasLimit`	number	The maximum amount of gas to be used.
`gasPrice`	string	The price of gas in Gwei.
`nonce`	number	The transaction nonce.
`chainId`	string	The ID of the chain (e.g., 1 for the Ethereum mainnet).
`data`	string	Any additional data to be included in the transaction.

📘This feature is only available for EVM and Solana based blockchains.

Required Scopes

How to sign a transaction

📘
This feature is only available for EVM and Solana based blockchains.