fastapi_mcp
★ 12.0k
vs
Hades
★ 29
fastapi_mcp vs Hades
fastapi_mcp: FastAPI-MCP allows you to expose your existing FastAPI endpoints as Model Context Protocol (MCP) tools. It offers native integration with FastAPI, including built-in authentication using existing dependencies, and preserves schemas and documentation.; Hades: Hades is Unity-aware AI infrastructure that builds a queryable knowledge graph of your entire Unity project, enabling AI agents like Claude Code to understand project structure and dependencies rather than relying on guesswork. It provides agents with 90 MCP tools and 22 skills, improving correctness and reducing costs for complex development tasks within Unity.
01
TL;DR
fastapi_mcpDev Tooling · ★ 12.0k
When to choose:
- You already have a FastAPI application and want to expose its endpoints as MCP tools while reusing your existing FastAPI authentication dependencies and Swagger schemas.
- You want to mount the MCP server directly onto your ASGI app or deploy it separately under an MIT license.
When to skip:
- You are building a standalone MCP server from scratch rather than wrapping a FastAPI app; use FastMCP or the official MCP Python SDK.
- You need an actively updated repository (last push was November 2025).
HadesDev Tooling · ★ 29
Project Overview: AI agents can provide accurate, project-specific overviews.
02
Side-by-Side Comparison
Field
fastapi_mcpHadesCategory
Dev Tooling
Dev Tooling
Stars
★ 12.0k
★ 29
License
MIT
MIT
Install Command
uv add fastapi-mcp
/plugin marketplace add TheArcForge/hades-plugin && /plugin install hades
Updated
11mo ago
1mo ago
Open Source
Yes
Yes
Tags
FastAPI, MCP, Python
Unity, AI Infrastructure, Knowledge Graph
03
Features
fastapi_mcp01Authentication built in, using your existing FastAPI dependencies!
02FastAPI-native: Not just another OpenAPI -> MCP converter
03Zero/Minimal configuration required
04Preserving schemas of your request models and response models
05Flexible deployment - Mount your MCP server to the same app, or deploy separately
Hades01Semantic Knowledge Graph: A queryable graph of Unity project assets, scripts, and their dependencies.
02Full Observability (Charon): Tracing of every tool call, graph query, and memory operation for transparency.
03Persistent Project Memory (Asphodel): Version-controlled markdown for capturing project decisions and context.
04Extensive AI Toolkit: Includes 22 skills and 90 Model Context Protocol (MCP) tools for AI agents.
05Local-First Operation: Runs entirely locally without cloud services, ensuring privacy and version control.
04
Use Cases
fastapi_mcp↳Integrating FastAPI services as tools for large language models (LLMs) that support MCP.
↳Enabling LLMs to interact with and utilize existing business logic and data exposed via FastAPI.
↳Quickly exposing authenticated FastAPI APIs as discoverable and usable tools within an MCP ecosystem.
Hades↳Project Overview: AI agents can provide accurate, project-specific overviews.
↳Structural Search: Perform deep structural searches for references across scenes, prefabs, and scripts.
↳Dependency Analysis: Trace dependencies and analyze the impact of proposed changes before implementation.
↳Context-Aware Advice: Leverage persistent project memory for context-aware guidance and architectural decisions.
↳Automated Unity Editor Actions: Enable AI agents to execute various Unity editor actions programmatically.
05
Best For
fastapi_mcpMost PopularEssential
Hades—
FAQ
FAQ
What is the difference between fastapi_mcp and Hades?
Both fastapi_mcp and Hades are in the Dev Tooling category. fastapi_mcp has 12.0k stars, while Hades has 29 stars.
Which is better, fastapi_mcp or Hades?
The best choice depends on your use case. Choose fastapi_mcp if Integrating FastAPI services as tools for large language models (LLMs) that support MCP., and Hades if Project Overview: AI agents can provide accurate, project-specific overviews..
Is fastapi_mcp free or open source?
Yes, fastapi_mcp is open source on GitHub (MIT).
Is Hades free or open source?
Yes, Hades is open source on GitHub (MIT).
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