OpenAPI Spec Generator

•
1.3k
•

Generates comprehensive OpenAPI 3.x specifications automatically from source code annotations, comments, and interface definitions.

The OpenAPI Spec Generator skill streamlines API documentation by parsing source code to extract endpoints, schemas, and metadata directly from your codebase. It supports multiple frameworks and languages—including Express, FastAPI, and TypeScript—ensuring that your API documentation stays in sync with your implementation through automated validation, incremental updates, and schema extraction from native types.

Key Features

01Extracts API endpoints and schemas from code annotations and decorators
02Auto-generates request/response schemas from TypeScript, Python, and Go types
03Maintains documentation consistency with incremental updates and change diffing
04Validates specifications against industry standards using Spectral or openapi-spec-validator
05Supports OpenAPI 3.0 and 3.1 in both YAML and JSON formats
061,328 GitHub stars

Use Cases

01Standardizing API design specifications across polyglot microservice architectures
02Automating API documentation for existing RESTful services
03Synchronizing SDK code generation pipelines with backend implementation changes