Overview
fastapi-expert is an open-source backend skill for Claude Code and compatible agents, published by Jeffallan. Its author describes it as: “Use when building high-performance async Python APIs with FastAPI and Pydantic V2. Invoke to create REST endpoints, define Pydantic models, implement authentication flows, set up async SQLAlchemy database operations,…”. The project has 11k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add Jeffallan/claude-skills`.
What fastapi-expert does
Deep expertise in async Python, Pydantic V2, and production-grade API development with FastAPI.
Best for
What’s inside
The SKILL.md for fastapi-expert is organised into these sections:
- When to Use This Skill
- Core Workflow
- Minimal Complete Example
- JWT Authentication Snippet
- Reference Guide
- Constraints
- MUST DO
- MUST NOT DO
- Output Templates
- Knowledge Reference
Installation
Add fastapi-expert to your agent with:
/plugin marketplace add Jeffallan/claude-skillsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
License
fastapi-expert is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in Jeffallan/claude-skills, an established project with 11,060 GitHub stars
- Works with Claude Code
- Actively maintained — repository updated in the last 90 days
Author
Topics
Alternatives to fastapi-expert
Similar skills from other repositories:
Frequently asked questions
- What does fastapi-expert do?
- Use when building high-performance async Python APIs with FastAPI and Pydantic V2. Invoke to create REST endpoints, define Pydantic models, implement authentication flows, set up async SQLAlchemy database operations, add JWT authentication, build WebSocket endpoints, or generate OpenAPI documentation. Trigger terms: FastAPI, Pydantic, async Python, Python API, REST API Python, SQLAlchemy async, JWT authentication, OpenAPI, Swagger Python.
- How do I install fastapi-expert?
- Run /plugin marketplace add Jeffallan/claude-skills in your agent, then reload your skills. Review the source at https://github.com/Jeffallan/claude-skills before installing.
- Is fastapi-expert free to use?
- Yes. fastapi-expert is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does fastapi-expert work with?
- fastapi-expert lists Claude Code — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does fastapi-expert come from?
- fastapi-expert ships inside Jeffallan/claude-skills, a repository that contains 41 catalogued skills in total. The repository's 11,060 GitHub stars apply to that whole collection, not to this skill on its own.