head to head · open source
fastapi_mcp vs dev-proxy
fastapi_mcp has 12,024 GitHub stars, 967 forks, 169 open issues and last shipped 11 months ago. dev-proxy has 838 stars, 90 forks, 36 open issues and last shipped yesterday. fastapi_mcp leads on adoption by 1,335% (12,024 vs 838 stars). fastapi_mcp is written in Python under MIT; dev-proxy is written in C# under MIT. fastapi_mcp has attracted 8% as many forks as stars, dev-proxy 11%. dev-proxy was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (llm, mcp), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| fastapi_mcp | dev-proxy | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 838 |
| License | MIT | MIT |
| Written in | Python | C# |
| Last push | 2025-11-24 | 2026-11-02 |
| Forks | ⑂ 967 | ⑂ 90 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi_mcp if
- You weight community size — 12K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick dev-proxy if
- You want the dev-proxy feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and dev-proxy fits your workflow better
About fastapi_mcp
Built by Tadata FastAPI MCP Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth! Features Authentication built in, using your existing FastAPI dependencies! FastAPI native: Not just another OpenAPI MCP converter Zero/Minimal configuration required just point it at your FastAPI app and it works Preserving schemas of your request models and response models Preserve documentation of all your endpoints, just as it is in Swagger Flexible deployment Mount your MCP server to the same app, or deploy separately ASGI transport Uses FastAPI's ASGI interface directly for efficient communication…
read the full fastapi_mcp overview →
About dev-proxy
Dev Proxy Test the untestable Documentation What is Dev Proxy? Dev Proxy is an API simulator that helps you effortlessly test your app beyond the happy path. Dev Proxy is a command line tool that works on any platform. Because it intercepts network requests, it works with any type of app and tech stack. Dev Proxy is open source and free to use . You test your app to make sure it works as intended. But what if the APIs you use fail? Will your app lose your customer's data? How do you test for this? Simulating API failures is hard. You end up writing code that you won't be shipping or worse: not testing at all…
read the full dev-proxy overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is fastapi_mcp or dev-proxy more popular?
fastapi_mcp has 12,024 GitHub stars and dev-proxy has 838. fastapi_mcp has the larger community by that measure.
Are fastapi_mcp and dev-proxy free?
Both are open source. fastapi_mcp is licensed under MIT and dev-proxy under MIT. Neither carries a licence fee.
What is the difference between fastapi_mcp and dev-proxy?
fastapi_mcp is written in Python and dev-proxy in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, fastapi_mcp or dev-proxy?
Choose fastapi_mcp if you want the larger community (12,024 stars) or its MIT licence terms. Choose dev-proxy if its feature set, stack or MIT licence fits better. Both are self-hostable.