Content & Documentation

OpenAPI Documentation

Generate interactive API documentation from OpenAPI and Swagger specifications. Keep your API docs always up to date with your endpoints.

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Overview

OpenAPI (formerly Swagger) specifications describe your REST API in a machine-readable format that can generate interactive documentation, client SDKs, and server stubs. AI agents can both generate OpenAPI specs from your existing code and keep them updated as your API evolves.

Your AI agent can analyze your route handlers, extract request/response schemas, and produce a complete OpenAPI 3.0 specification. When you add or modify endpoints, the agent updates the spec accordingly. Tools like Swagger UI or Redoc then render this spec as beautiful, interactive documentation that developers can try out directly in the browser.

The reverse flow is equally powerful: given an OpenAPI spec, your agent can generate type-safe API client code, request validation middleware, and test fixtures. This ensures that your API contract, documentation, and implementation stay perfectly aligned.

Who Is This For?

Backend developers generating OpenAPI specs from existing route handlers
Teams maintaining interactive API documentation with Swagger UI
Developers generating type-safe API clients from OpenAPI specifications
API teams keeping documentation in sync with code changes

Installation

Setup for Claude Code

npm install --save-dev swagger-jsdoc swagger-ui-express
Claude Code generates and updates OpenAPI specs from code analysis

Configuration

// openapi.yaml (example)
openapi: "3.0.0"
info:
  title: My API
  version: "1.0.0"
paths:
  /api/users:
    get:
      summary: List users
      responses:
        "200":
          description: Successful response

Visit Source (Swagger)

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