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fastapi-microservices-development — Claude Code skill

Guide for structuring Python microservices using FastAPI, covering dependency injection, asynchronous routes, and service-to-service communication.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add manutej/luxor-claude-marketplace --skill fastapi-microservices-development -a claude-code
Open on GitHub

What fastapi-microservices-development does

This skill guides service design in Python. It outlines core boundaries, such as one database per service and stateless endpoint design. It provides practical patterns for resource modeling with Pydantic and CRUD operations with standard status codes.

The reference details when to choose async def over standard def routines. It shows how to share authentication logic and parameters using FastAPI's Depends system. For service communication, the skill implements external HTTP calls through httpx with fallback error handling.

The guide requires Python 3.7 or newer. When using synchronous database drivers, standard functions are preferred to keep event loops unblocked.

What it helps with

  • structure isolated microservices following the single responsibility principle
  • configure dependency injection with Depends to share request logic
  • handle network communication between services using httpx
  • write REST CRUD routes paired with Pydantic models

Example prompts for the agent

  • Build a set of FastAPI CRUD endpoints for an inventory service using Pydantic schemas.
  • Write an async client call using httpx to query an external service with error handling.
  • Create a shared dependency with Depends to validate query parameters across multiple endpoints.

How to install fastapi-microservices-development

1Skills CLI (Vercel)

npx skills add manutej/luxor-claude-marketplace --skill fastapi-microservices-development -a claude-code

2Manually: put the files in place

~/.claude/skills/fastapi-microservices-development/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/fastapi-microservices-development/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about fastapi-microservices-development

How to install fastapi-microservices-development in Claude Code?

Run npx skills add manutej/luxor-claude-marketplace --skill fastapi-microservices-development -a claude-code in your terminal. It sets up the skill under ~/.claude/skills/fastapi-microservices-development/SKILL.md.

What does fastapi-microservices-development do?

It provides guidelines and patterns for building scalable FastAPI backends. The instructions focus on async handling, dependency injection, and REST resource design.

When does the guide suggest using regular def instead of async def?

Regular def handlers should be used with blocking database drivers or CPU-heavy tasks that do not await non-blocking I/O operations.

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