data_dictionary

Data dictionary for Athenium weather datasets. Free, no credits.

Two modes:
1. LIST (no variable_names): returns field packages, valid fields, supported
   intervals, and usage guidance for the selected dataset(s). Call before
   station_historical_data, station_climate_normals, or gridded_history_15km
   to choose the 'fields' parameter. If the user's intent does not map to a
   specific package, use fields='all' in the data call.
2. LOOKUP (variable_names given): returns the definition, units, and default
   flag for one or more exact API variable names. This mode is not a search —
   names must match exactly (e.g. 'surfaceTemperature').

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "data_dictionary",
    "arguments": {
      "dataset": "all",
      "content_mode": "text"
    }
  }
}

{
  "name": "data_dictionary",
  "arguments": {
    "dataset": "all",
    "content_mode": "text"
  }
}