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POST
/
efb0a5eccd2caa5135eb54eba6f7f300
eth_getTransactionCount
curl --request POST \
  --url https://optimism-mainnet.core.chainstack.com/efb0a5eccd2caa5135eb54eba6f7f300 \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "eth_getTransactionCount",
  "id": 1,
  "params": [
    "0xF977814e90dA44bFA03b6295A0616a897441aceC",
    "latest"
  ]
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Optimism API method eth_getTransactionCount retrieves the number of transactions sent from a specified address, often used to determine the nonce for the next transaction from that address.
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​
Parameters

  • address — the address to get the transaction count for. In this example.
  • block — the block number (in hexadecimal) or one of the strings "earliest", "latest", or "pending", indicating the state to consider. The default is "latest".

​
Response

  • result — the number of transactions sent from the specified address, returned as a hexadecimal string.

​
Use case

The eth_getTransactionCount method is essential for:
  • Wallets and transaction services that need to calculate the nonce for new transactions.
  • Applications that monitor account activity, including outgoing transactions.
  • Tools that analyze the history and behavior of accounts on the Ethereum blockchain.

Body

application/json
​
jsonrpc
string
default:2.0
required
​
method
string
default:eth_getTransactionCount
required
​
id
integer
default:1
required
​
params
string[]
required

Response

200 - application/json

The number of transactions sent from the address

​
jsonrpc
string
​
id
integer
​
result
string
Last modified on August 7, 2025