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Fastapi

Checked
tiangolo·vlatest·backend·MIT

FastAPI helps you quickly build modern, high-performance APIs with Python, streamlining development and boosting efficiency.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add fastapi/fastapi --skill fastapi -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

tiangolo

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned tiangolo/fastapi at 28a2061073.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
28a2061073
Manifest
fastapi/.agents/skills/fastapi/SKILL.md
Scanned
7 files, 851 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill provides access to FastAPI, a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It simplifies the development process and allows for rapid API creation while maintaining high performance and developer experience. FastAPI is designed for building robust and well-documented APIs.

When to use it

  • Building RESTful APIs: Quickly create backend services that expose data through HTTP endpoints.
  • Rapid Prototyping: Develop and test API functionality quickly due to its ease of use and fast development cycle.
  • Microservices Architecture: Construct smaller, independent services for a larger application.
  • Data Science Projects: Create APIs to serve machine learning models or data processing pipelines.

Key capabilities

  • Automatic Data Validation (Pydantic)
  • Automatic API Documentation (Swagger UI & ReDoc)
  • Asynchronous Support
  • Dependency Injection
  • Type Hints for code completion and validation

Example prompts

  • "Create a FastAPI endpoint that returns 'Hello, World!'"
  • "Generate a Pydantic model to represent a user with name and email fields."
  • "Show me the Swagger UI documentation for this API."

Tips & gotchas

  • Requires Python 3.7 or higher.
  • Familiarity with Python type hints is beneficial for leveraging FastAPI's full capabilities.