Unverified50% confidenceFactExact time
Function Calling 以结构化 JSON Schema 定义函数签名，无需依赖外部服务托管，相较于 Plugins 无需维护独立 HTTPS 服务端点
1
Sources
50%
Confidence
Long-term
Relevance
7/13/2026
First Seen
Sources
OpenAI Plugins详解：让ChatGPT连接真实世界的插件系统
githubGitHub Trending7/11/2026
Related Claims
UnverifiedThe core mechanism of Function Calling is that developers describe external function signatures in JSON Schema format, and the model outputs structured JSON invocation instructions that conform to the schema specification.77% similarVerifiedFunction Call does not actually execute code; the model only outputs a structured JSON string, and the actual execution is performed by the host program.69% similarUnverifiedFunction Calling允许模型以结构化JSON格式输出工具调用请求，提升了与外部系统集成的可靠性67% 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 Schema66% similarUnverifiedThe API signature mechanism generates an unforgeable signature value by combining request parameters with a key according to specific rules and then performing a hash operation.65% similar
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