Ethereum method

web3_clientVersion

Returns the node software and version behind an endpoint.

cheapCheap for a provider to serve — no state is read, or one key is.Primary specification

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

A free-form string such as `Geth/v1.14.11-stable/linux-amd64/go1.22.9`. It reveals which client implementation is serving requests.

Many commercial providers replace it with their own product name, which is a legitimate choice and means the field cannot be relied on to identify software.

Returns

String — the client version.

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":"web3_clientVersion","params":[],"id":67}'

As JSON-RPC

{
  "jsonrpc": "2.0",
  "method": "web3_clientVersion",
  "params": [],
  "id": 67
}

Response

{
  "id": 67,
  "jsonrpc": "2.0",
  "result": "Geth/v1.14.11-stable/linux-amd64/go1.22.9"
}

Things that bite

Client diversity matters for the health of the network, but this string is not evidence of it: a proxy can return anything.

Why it is measured

It shows which providers run a stock client and which sit behind their own infrastructure, which frames the rest of their results.

Called every 900 seconds per endpoint, with jitter so the fleet does not hit a provider in lockstep.

6h window · generated 2026-08-24 16:33:10 UTC · 0 providers