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JSON Schema Tool Calling Generator
Convert TypeScript types or JSON objects into strict JSON Schema function definitions compatible with OpenAI and Anthropic tool calling.
Raw JSON Mode
tool-schema.json
{
"type": "function",
"function": {
"name": "get_weather",
"description": "Get the current weather in a given location",
"parameters": {
"type": "object",
"properties": {
"location": {
"type": "string",
"description": "The city and state, e.g. San Francisco, CA"
},
"unit": {
"type": "string",
"description": "The unit of temperature, either 'celsius' or 'fahrenheit'"
}
},
"required": [
"location"
]
}
}
}
How to use the JSON Schema Tool Calling Generator
Generate fully compliant JSON schemas with parameter types, required fields, and descriptions for deterministic LLM function execution.
Why use a dedicated json schema tool calling generator?
As AI developer tools become more complex, writing boilerplate code, complex system prompts, or schema definitions manually is error-prone. This tool guarantees structured, predictable output tailored to your exact stack without the hassle of manual formatting.