head to head · open source
fastapi vs run-aspnetcore-microservices
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. run-aspnetcore-microservices has 3,272 stars, 1,736 forks, 43 open issues and last shipped 8 months ago. fastapi leads on adoption by 3,096% (104,566 vs 3,272 stars). fastapi is written in Python under MIT; run-aspnetcore-microservices is written in C# under MIT. fastapi has attracted 10% as many forks as stars, run-aspnetcore-microservices 53%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | run-aspnetcore-microservices | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 3.3K |
| License | MIT | MIT |
| Written in | Python | C# |
| Last push | 2026-11-02 | 2026-03-09 |
| Forks | ⑂ 10K | ⑂ 1.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 105K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick run-aspnetcore-microservices if
- You want the run-aspnetcore-microservices feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and run-aspnetcore-microservices fits your workflow better
About fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production Documentation : Source Code : FastAPI is a modern, fast (high performance), web framework for building APIs with Python based on standard Python type hints. The key features are: Fast : Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available. Fast to code : Increase the speed to develop features by about 200% to 300%. Fewer bugs : Reduce about 40% of human (developer) induced errors. Intuitive : Great editor support. Completion everywhere. Less time…
read the full fastapi overview →
About run-aspnetcore-microservices
UDEMY COURSE WITH DISCOUNTED Step by Step Development of this Repository See the overall picture of implementations on microservices with .net tools on real world e commerce microservices project; There is a couple of microservices which implemented e commerce modules over Catalog, Basket, Discount and Ordering microservices with NoSQL (DocumentDb, Redis) and Relational databases (PostgreSQL, Sql Server) with communicating over RabbitMQ Event Driven Communication and using Yarp API Gateway . Check Explanation of this Repository on Medium .NET 8 Microservices: DDD, CQRS, Vertical/Clean Architecture and Event…
read the full run-aspnetcore-microservices overview →
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Frequently asked questions
Is fastapi or run-aspnetcore-microservices more popular?
fastapi has 104,566 GitHub stars and run-aspnetcore-microservices has 3,272. fastapi has the larger community by that measure.
Are fastapi and run-aspnetcore-microservices free?
Both are open source. fastapi is licensed under MIT and run-aspnetcore-microservices under MIT. Neither carries a licence fee.
What is the difference between fastapi and run-aspnetcore-microservices?
fastapi is written in Python and run-aspnetcore-microservices 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 or run-aspnetcore-microservices?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose run-aspnetcore-microservices if its feature set, stack or MIT licence fits better. Both are self-hostable.