This is your FastAPI implementation skill for building async Python APIs with automatic OpenAPI documentation and type-safe request handling. It covers the essentials: route decorators, path and query parameters, request body validation, and response models. With 114 installs and passing security audits from Gen Agent Trust Hub, Socket, and Snyk, it's a solid foundation if you're spinning up a new API or teaching Claude how to work with FastAPI patterns. The skill comes from the pluginagentmarketplace custom Python plugin collection, so it's designed to work across compatible AI coding assistants. Good for when you need Claude to scaffold endpoints or handle FastAPI's async patterns without explaining the basics every time.
- skills.sh installs
- 181
- GitHub stars
- 6
- last updated
- Aug 21, 2026
Install
$ npx -y skills add pluginagentmarketplace/custom-plugin-python --skill FastAPI --agent claude-codeInstalls into .claude/skills of the current project.
Files
FastAPI Skill
Overview
Build modern, high-performance APIs with FastAPI, including async endpoints, automatic documentation, and type-safe request handling.
Topics Covered
FastAPI Basics
- Application structure
- Route decorators
- Path and query parameters
- Request body handling
- Response models
Pydantic Integration
- Request validation
- Response serialization
- Custom validators
- Settings management
- Nested models
Async Programming
- Async endpoint handlers
- Background tasks
- Async database access
- Concurrent requests
- Event handlers
Security
- OAuth2 implementation
- JWT authentication
- API key authentication
- Dependency injection
- CORS configuration
Advanced Features
- WebSocket support
- File uploads
- Streaming responses
- Middleware creation
- Testing FastAPI
Prerequisites
- Python fundamentals
- Async/await basics
- HTTP concepts
Learning Outcomes
- Build production APIs
- Implement authentication
- Create async endpoints
- Generate API documentation
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- Repository
- github.com/pluginagentmarketplace/custom-plugin-python
- Category
- Python
- First seen
- Jun 3, 2026
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