curl --request GET \
  --url https://test.deribit.com/api/v2/public/test \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "id": 8212,
  "method": "public/test",
  "params": {}
}
'

{
  "jsonrpc": "2.0",
  "id": 8212,
  "result": {
    "version": "1.2.26"
  }
}