head to head · open source
fastapi_mcp vs CliRelay
fastapi_mcp has 12,025 GitHub stars, 966 forks, 169 open issues and last shipped 12 months ago. CliRelay has 1,049 stars, 135 forks, 13 open issues and last shipped yesterday. fastapi_mcp leads on adoption by 1,046% (12,025 vs 1,049 stars). fastapi_mcp is written in Python under MIT; CliRelay is written in Go under MIT. fastapi_mcp has attracted 8% as many forks as stars, CliRelay 13%. CliRelay 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 | CliRelay | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.0K |
| License | MIT | MIT |
| Written in | Python | Go |
| Last push | 2025-11-24 | 2026-11-04 |
| Forks | ⑂ 966 | ⑂ 135 |
| 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 CliRelay if
- You want the CliRelay feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and CliRelay 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 CliRelay
🔀 CliRelay A unified proxy server for AI CLI tools — use your existing subscriptions with any OpenAI / Gemini / Claude / Codex compatible client. Multi tenant web panel · request logs & quotas · routing groups & failover · self hosted English 中文 📖 Docs · 🖥️ Management Panel · 🐛 Report Bug · ✨ Request Feature ⚡ What is CliRelay? ✨ Heavily enhanced fork of the CLIProxyAPI project — rebuilt with a production grade management layer, web control panel hosting, and a terminal TUI for day 2 operations. CliRelay turns AI CLI subscriptions, OAuth credentials, API keys, and compatible upstream services into one…
read the full CliRelay overview →
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Frequently asked questions
Is fastapi_mcp or CliRelay more popular?
fastapi_mcp has 12,025 GitHub stars and CliRelay has 1,049. fastapi_mcp has the larger community by that measure.
Are fastapi_mcp and CliRelay free?
Both are open source. fastapi_mcp is licensed under MIT and CliRelay under MIT. Neither carries a licence fee.
What is the difference between fastapi_mcp and CliRelay?
fastapi_mcp is written in Python and CliRelay in Go. 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 CliRelay?
Choose fastapi_mcp if you want the larger community (12,025 stars) or its MIT licence terms. Choose CliRelay if its feature set, stack or MIT licence fits better. Both are self-hostable.