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author_rotateKeys

Description​

Generates new session keys on the node and returns the public keys. This RPC is restricted to collators running in validator mode.

Parameters​

This method does not require parameters.

Response Example (public endpoint)​

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32601,
    "message": "RPC call is unsafe to be called externally"
  }
}

Public infrastructure providers disable this method. Run a self-hosted collator with access control to use it.

Collator Usage (illustrative)​

curl http://localhost:9933 \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"author_rotateKeys","params":[],"id":1}'

The response returns the SCALE-encoded new session keys, which must be submitted on-chain via the session.setKeys extrinsic.