Expired50% confidenceFactExact time
Pydantic v2's model_json_schema() method generates output conforming to the JSON Schema Draft 2020-12 specification by default, while FastMCP adapts it to Draft 7 format for compatibility with mainstream LLM APIs.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/22/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/20/2026(expired)
Sources
Related Claims
UnverifiedFastMCP 将函数签名自动转换为符合 JSON Schema Draft 7 规范的参数描述79% similarUnverifiedIn the tool-calling mechanism, developers attach a tool description list in JSON Schema format when calling the LLM API, and the model outputs call parameters in structured JSON format76% similarUnverifiedThe latest version of JSON Schema is Draft 2020-12, maintained by json-schema.org.74% similarUnverified在FastMCP中，函数的类型提示和文档字符串会自动转换为符合JSON Schema规范的工具模式，无需手写JSON Schema74% similarUnverifiedThe JSON structure returned by LLM APIs may vary across model versions.71% similar
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