Function Calling Schema Generator

Generate a function schema

Function name (snake_case)

Description

Parameters (one per line: name,type,Fdescription)

Frequently asked questions

What is the function calling schema generator?

The function calling schema generator is a free online tool that helps you analyze and compare AI models, costs, and capabilities. Powered by Plugsky's one-API platform with 31+ models.

Is the function calling schema generator free?

Yes. This tool is free to use with no signup required. Sign up for unlimited access to all 31+ AI models through one API on Plugsky.

Last updated Jul 2026. Prices and availability verified at time of writing — check provider pages for current rates.

Example output

{
  "type": "function",
  "function": {
    "name": "get_weather",
    "description": "Get current weather for a city",
    "parameters": {
      "type": "object",
      "properties": {
        "city": {"type": "string", "description": "City name"},
        "units": {"type": "string", "description": "metric or imperial"}
      },
      "required": ["city"]
    }
  }
}

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