eth_getTransactionCount - Validation Cloud

Returns the number of transactions sent from an address. This method will use 40 Compute Units.

Unichain Mainnet keeps historical state for roughly the last 10,000 blocks, about 2.8 hours at Unichain’s 1-second block time. Requests for an older block return JSON-RPC error -32603 with a message that contains state at block #<number> is pruned.

Reference: Here

Parameters

DATA, 20 Bytes - address.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

params: [
  "0xcabba9e7f4b3a885c5aa069f88469ac711dd4acc",
  "latest"
]

Returns

QUANTITY - String hex value representing integer of the number of transactions sent from this address.

// Result
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xbfeecb6"
}

curl https://mainnet.unichain.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0xcabba9e7f4b3a885c5aa069f88469ac711dd4acc","latest"],"id":1}'