lockkeeper
★ 17
vs
fastapi_mcp
★ 12.0k
lockkeeper vs fastapi_mcp
lockkeeper: Lockkeeper is a local skill router and prompt-injection firewall designed for AI coding agents. It efficiently routes tasks to a small, relevant set of skills, reducing context window size and enhancing tool choices, while also scanning skills and tool calls for security threats.; 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.
01
TL;DR
lockkeeperDev Tooling · ★ 17
Automatically route prompts to relevant skills for Claude Code.
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).
02
Side-by-Side Comparison
Field
lockkeeperfastapi_mcpCategory
Dev Tooling
Dev Tooling
Stars
★ 17
★ 12.0k
License
NOASSERTION
MIT
Install Command
pipx install lockkeeper && lockkeeper init
uv add fastapi-mcp
Updated
6d ago
11mo ago
Open Source
Yes
Yes
Tags
AI Agent Skills, Prompt Routing, Context Management
FastAPI, MCP, Python
03
Features
lockkeeper01Improved skill selection accuracy for AI agents.
02Significantly reduces context window size by routing only relevant skills.
03Built-in prompt injection firewall to secure skills and plugins.
04Operates locally, privately, and with zero dependencies (pure Python).
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
04
Use Cases
lockkeeper↳Automatically route prompts to relevant skills for Claude Code.
↳Act as an MCP server for agents like Codex, Cursor, and other MCP clients.
↳Route tasks and search for skills directly from the command line or scripts.
↳Audit skills and plugins for prompt injection and malicious code before installation.
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.
05
Best For
lockkeeper—
fastapi_mcpMost PopularEssential
FAQ
FAQ
What is the difference between lockkeeper and fastapi_mcp?
Both lockkeeper and fastapi_mcp are in the Dev Tooling category. lockkeeper has 17 stars, while fastapi_mcp has 12.0k stars.
Which is better, lockkeeper or fastapi_mcp?
The best choice depends on your use case. Choose lockkeeper if Automatically route prompts to relevant skills for Claude Code., and fastapi_mcp if Integrating FastAPI services as tools for large language models (LLMs) that support MCP..
Is lockkeeper free or open source?
Yes, lockkeeper is open source on GitHub (NOASSERTION).
Is fastapi_mcp free or open source?
Yes, fastapi_mcp is open source on GitHub (MIT).
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