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system_version

Returns the semver-like version string reported by the node implementation. Use this to verify that your infrastructure is running the expected release or to surface diagnostics in status pages.

Parameters#

This method does not take parameters.

Returns#

FieldTypeDescription
resultstringImplementation version string (e.g., 4.7.0-95e5e273b3e).

Request Example#

{
  "jsonrpc": "2.0",
  "method": "system_version",
  "params": [],
  "id": 1
}

Response:

{
  "jsonrpc": "2.0",
  "result": "4.7.0-95e5e273b3e",
  "id": 1
}

Quick Check with @polkadot/api#

import { ApiPromise, WsProvider } from '@polkadot/api';

const provider = new WsProvider('wss://api-manta-atlantic-mainnet.n.dwellir.com/YOUR_API_KEY');
const api = await ApiPromise.create({ provider });

const version = await api.rpc.system.version();
console.log('Node version', version.toString());

Usage Notes#

  • Pair with state_getRuntimeVersion to track both runtime and binary upgrades.
  • During maintenance windows, validate that all nodes report the same version before returning them to rotation.