eth_getTransactionCount

Returns the number of transactions sent from an address.

Parameters:

DATA, 20 Bytes - address.

QUANTITY|TAG - integer block number, or the string "latest"

Returns:

QUANTITY - integer of the number of transactions send from this address.

Example:

// Request
curl https://optimism.blockpi.network/v1/rpc/your-rpc-key -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x17281460228691b044e080a5f5257dce8e47f79c","latest"],"id":1}'

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x30"
}