head to head · open source
grpc-gateway vs fastapi_mcp
grpc-gateway has 20,012 GitHub stars, 2,415 forks, 149 open issues and last shipped yesterday. fastapi_mcp has 12,024 stars, 967 forks, 169 open issues and last shipped 11 months ago. grpc-gateway leads on adoption by 66% (20,012 vs 12,024 stars). grpc-gateway is written in Go under BSD-3-Clause; fastapi_mcp is written in Python under MIT. grpc-gateway has attracted 12% as many forks as stars, fastapi_mcp 8%. grpc-gateway was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (openapi), 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
| grpc-gateway | fastapi_mcp | |
|---|---|---|
| GitHub stars | ★ 20K | ★ 12K |
| License | BSD-3-Clause | MIT |
| Written in | Go | Python |
| Last push | 2026-11-02 | 2025-11-24 |
| Forks | ⑂ 2.4K | ⑂ 967 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick grpc-gateway if
- You weight community size — 20K stars and counting
- You want the BSD-3-Clause license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick fastapi_mcp if
- You want the fastapi_mcp feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and fastapi_mcp fits your workflow better
About grpc-gateway
gRPC Gateway gRPC to JSON proxy generator following the gRPC HTTP spec About The gRPC Gateway is a plugin of the Google protocol buffers compiler protoc. It reads protobuf service definitions and generates a reverse proxy server which translates a RESTful HTTP API into gRPC. This server is generated according to the google.api.http annotations in your service definitions. This helps you provide your APIs in both gRPC and RESTful style at the same time. Docs You can read our docs at: Testimonials We use the gRPC Gateway to serve millions of API requests per day, and have been since 2018 and through all of that…
read the full grpc-gateway overview →
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 →
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Frequently asked questions
Is grpc-gateway or fastapi_mcp more popular?
grpc-gateway has 20,012 GitHub stars and fastapi_mcp has 12,024. grpc-gateway has the larger community by that measure.
Are grpc-gateway and fastapi_mcp free?
Both are open source. grpc-gateway is licensed under BSD-3-Clause and fastapi_mcp under MIT. Neither carries a licence fee.
What is the difference between grpc-gateway and fastapi_mcp?
grpc-gateway is written in Go and fastapi_mcp 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, grpc-gateway or fastapi_mcp?
Choose grpc-gateway if you want the larger community (20,012 stars) or its BSD-3-Clause licence terms. Choose fastapi_mcp if its feature set, stack or MIT licence fits better. Both are self-hostable.