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Async Python APIs with FastAPI v1.0.0

Use this resource to build an async, typed FastAPI API validated with Pydantic v2

New

  • 383 downloads
  • 115 likes
  • 91 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install fastapi-async-api-subagent

First time: connect the CLI with

npx --yes palatekit@latest login

This subagent builds FastAPI 0.100+ APIs: routers, Pydantic v2 models, dependency injection, error handling, authentication and generated OpenAPI documentation. It aims for high test coverage and ASGI deployment. The main agent calls it for a Python API to create or extend.

Mostly picked by

Updated November 2, 2026

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Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • The subagent file (in English): method, FastAPI checklist and Pydantic rules
  • Guidance on dependency injection, versioning and security

Good fit for

  • Exposing an AI model or a data service through an API
  • Adding validated routes to an existing Python project

Not for

    Tags

    • fastapi
    • python
    • pydantic
    • api

    About

    You say

    “Create the project management routes with Pydantic validation and OpenAPI docs.”

    Card for “Async Python APIs with FastAPI”

    Subagent published by VoltAgent under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Copy the file into .claude/agents/ (project) or ~/.claude/agents/ (all your projects)
    2. Ask your agent to build an async, typed FastAPI API validated with Pydantic v2, or call the subagent by name
    3. Review its work

    Content preview

    Files

    • fastapi-async-api-subagent.md7 KB
    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB

    Origin and licence

    Listed unmodified

    Author
    VoltAgent
    Source
    github.com/VoltAgent/awesome-claude-code-subagents/blob/f2e2ea7e0202cc05fa2d469fcb2c57fe08603450/categories/02-language-specialists/fastapi-developer.md
    Licence
    MIT

    Notice

    « fastapi-developer » (VoltAgent, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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