OpenAI Developers Responses API reference

OpenAPI specification for the OpenAI API

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Overview

openai-openapi是OpenAI API的官方OpenAPI规范，提供了完整的API接口文档和结构定义。该规范采用标准的OpenAPI 3.0格式，详细描述了OpenAI所有API端点的请求参数、响应格式、认证方式和错误处理机制。规范包含两个版本：自动生成的最新版本（通过Stainless平台维护）和手动更新的稳定版本。这个规范对于开发者理解OpenAI API结构、生成客户端代码、构建API集成工具以及进行API测试都具有重要意义。通过标准化的文档格式，开发者可以快速掌握API的使用方法，减少集成时的试错成本。该项目在GitHub上获得了2346个星标，表明其在开发者社区中的重要地位和广泛认可。

Deep Analysis

Key Differentiator

The canonical machine-readable OpenAI API specification — the single source of truth for building typed clients, mock servers, and API tooling around OpenAI's services

⚡ Capabilities

  • • Official OpenAPI specification for the OpenAI API
  • • Machine-readable API schema (YAML format)
  • • Complete endpoint, parameter, and response type definitions
  • • Foundation for SDK code generation in any language

🔗 Integrations

OpenAI APIStainless (spec generation)Any OpenAPI-compatible tooling

✓ Best For

  • ✓ SDK authors generating OpenAI client libraries
  • ✓ Developers building OpenAI API integrations with type safety

✗ Not Ideal For

  • ✗ Directly interacting with OpenAI API (use official SDKs)
  • ✗ Learning how to use OpenAI API (use docs.openai.com)

⚠ Known Limitations

  • ⚠ Specification only — no executable code or SDK
  • ⚠ May lag behind actual API changes
  • ⚠ Limited documentation in the repo itself (points to external spec URL)

Pros

  • + 官方维护的权威API规范，确保文档的准确性和时效性
  • + 提供自动更新和手动维护两个版本，满足不同使用场景的需求
  • + 标准OpenAPI格式支持自动生成客户端代码和API文档

Cons

  • - 作为规范文档而非可执行工具，需要配合其他工具才能发挥价值
  • - 手动维护版本可能存在更新滞后的问题
  • - 对于初学者来说，直接阅读OpenAPI规范可能存在一定的技术门槛

Use Cases

  • • 使用OpenAPI生成工具自动创建各种编程语言的OpenAI API客户端库
  • • 在API开发工具中导入规范以进行接口测试和调试
  • • 基于规范文档构建自定义的API集成工具和中间件服务

Getting Started

1. 访问[link] 选择合适的OpenAPI工具（如Swagger Codegen、OpenAPI Generator）导入规范；3. 根据需要生成客户端代码或在API测试工具中开始使用

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