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POST
/
2fc1de7f08c0465f6a28e3c355e0cb14
eth_protocolVersion
curl --request POST \
  --url https://base-mainnet.core.chainstack.com/2fc1de7f08c0465f6a28e3c355e0cb14 \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "eth_protocolVersion",
  "id": 1
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Base API method that returns the protocol version of the node. The protocol version is a string that identifies the version of the Base protocol that the node is running.
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​
Parameters

  • none

​
Response

  • result — a string specifying the Base protocol version that the node is using.

​
Use case

The eth_protocolVersion method is useful for applications that need to verify the protocol version of the node they’re connecting to. This can be important for compatibility checks and ensuring that the node supports the features required by the application.

Body

application/json
​
jsonrpc
string
default:2.0
​
method
string
default:eth_protocolVersion
​
id
integer
default:1

Response

200 - application/json

The current ethereum protocol version

​
jsonrpc
string
​
id
integer
​
result
string
Last modified on May 18, 2026