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Ethereum method

eth_getTransactionCount

Returns how many transactions an address has sent — its nonce.

cheapCheap for a provider to serve — no state is read, or one key is.Primary specification (opens in a new tab)

How each provider handles it

This method has not been measured in this window.

It is scheduled but no observation has landed yet.

What it does

The nonce. Every transaction from an account must carry the next one in sequence, so anything that sends a transaction reads this first.

The block parameter is unusually consequential here. At `latest` it counts mined transactions only; at `pending` it includes ones sitting in that node's mempool. Using `latest` while a transaction is still pending produces a nonce that is already taken, and the replacement is rejected.

Parameters

addressDATA, 20 bytesrequired
The account.
blockQUANTITY | TAGrequired
A block number in hex, or one of latest, earliest, pending, safe, finalized.Default: none — most clients accept latest, but the parameter is not optional in the specification and some providers reject the call without it

Returns

QUANTITY — the transaction count in hex.

Try it

Runnable as written, against a keyless public endpoint. Nothing here needs an API key.

Request

curl -s https://ethereum-rpc.publicnode.com \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x28C6c06298d514Db089934071355E5743bf21d60","latest"],"id":1}'

As JSON-RPC

{
  "jsonrpc": "2.0",
  "method": "eth_getTransactionCount",
  "params": ["0x28C6c06298d514Db089934071355E5743bf21d60", "latest"],
  "id": 1
}

Response

{
  "id": 1,
  "jsonrpc": "2.0",
  "result": "0x1f4a2"
}

Things that bite

  • Mempools are per-node. Two providers will legitimately return different pending nonces for the same address at the same moment.

Why it is measured

It sits directly on the transaction-sending path, so its latency is felt by every user who presses confirm.

Called every 300 seconds per endpoint, with jitter so the fleet does not hit a provider in lockstep.

6h window · generated 2026-08-24 16:32:46 UTC · 0 providers