head to head · open source
fastapi vs run-aspnetcore-microservices
fastapi has 102,402 GitHub stars, 9,903 forks, 78 open issues and last shipped 4 days ago. run-aspnetcore-microservices has 3,263 stars, 1,740 forks, 43 open issues and last shipped 6 months ago. fastapi leads on adoption by 3,038% (102,402 vs 3,263 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 | ★ 102K | ★ 3.3K |
| License | MIT | MIT |
| Written in | Python | C# |
| Last push | 2026-09-14 | 2026-03-09 |
| Forks | ⑂ 9.9K | ⑂ 1.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 102K 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 is an MIT licensed, high performance Python web framework for building APIs with standard Python type hints, aimed at Python developers and teams that need production ready HTTP services with automatic OpenAPI documentation.
read the full fastapi overview →
About run-aspnetcore-microservices
run aspnetcore microservices is an open source .NET repository that demonstrates microservices architecture for an e commerce domain. It combines ASP.NET Web API, ASP.NET Core Minimal APIs, Docker, RabbitMQ, MassTransit, gRPC, YARP, PostgreSQL, Redis, SQLite, SQL Server, Marten, Entity Framework Core, CQRS, MediatR, DDD, vertical and clean architecture, and .NET 8 with C 12.
read the full run-aspnetcore-microservices overview →
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Frequently asked questions
Is fastapi or run-aspnetcore-microservices more popular?
fastapi has 102,402 GitHub stars and run-aspnetcore-microservices has 3,263. 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 (102,402 stars) or its MIT licence terms. Choose run-aspnetcore-microservices if its feature set, stack or MIT licence fits better. Both are self-hostable.