head to head · open source
fastapi_mcp vs optillm
fastapi_mcp has 12,026 GitHub stars, 967 forks, 169 open issues and last shipped 12 months ago. optillm has 4,335 stars, 398 forks, 23 open issues and last shipped 3 days ago. fastapi_mcp leads on adoption by 177% (12,026 vs 4,335 stars). fastapi_mcp is written in Python under MIT; optillm is written in Python under Apache-2.0. fastapi_mcp has attracted 8% as many forks as stars, optillm 9%. optillm was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), 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.
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Side by side
| fastapi_mcp | optillm | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 4.3K |
| License | MIT | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2025-11-24 | 2026-11-02 |
| Forks | ⑂ 967 | ⑂ 398 |
| 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 optillm if
- You want the optillm feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and optillm 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 optillm
OptiLLM 🚀 2 10x accuracy improvements on reasoning tasks with zero training 🤗 HuggingFace Space • 📓 Colab Demo • 💬 Discussions OptiLLM is an OpenAI API compatible optimizing inference proxy that implements 20+ state of the art techniques to dramatically improve LLM accuracy and performance on reasoning tasks without requiring any model training or fine tuning. It is possible to beat the frontier models using these techniques across diverse tasks by doing additional compute at inference time. A good example of how to combine such techniques together is the CePO approach from Cerebras. ✨ Key Features 🎯…
read the full optillm overview →
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Frequently asked questions
Is fastapi_mcp or optillm more popular?
fastapi_mcp has 12,026 GitHub stars and optillm has 4,335. fastapi_mcp has the larger community by that measure.
Are fastapi_mcp and optillm free?
Both are open source. fastapi_mcp is licensed under MIT and optillm under Apache-2.0. Neither carries a licence fee.
What is the difference between fastapi_mcp and optillm?
fastapi_mcp is written in Python and optillm in Python. 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 optillm?
Choose fastapi_mcp if you want the larger community (12,026 stars) or its MIT licence terms. Choose optillm if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.