head to head · open source
fastapi vs reactive-interaction-gateway
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. reactive-interaction-gateway has 602 stars, 68 forks, 74 open issues and last shipped 7 months ago. fastapi leads on adoption by 17,270% (104,566 vs 602 stars). fastapi is written in Python under MIT; reactive-interaction-gateway is written in Elixir under Apache-2.0. fastapi has attracted 10% as many forks as stars, reactive-interaction-gateway 11%. 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 | reactive-interaction-gateway | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 602 |
| License | MIT | Apache-2.0 |
| Written in | Python | Elixir |
| Last push | 2026-11-02 | 2026-04-16 |
| Forks | ⑂ 10K | ⑂ 68 |
| 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 reactive-interaction-gateway if
- You want the reactive-interaction-gateway feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Elixir
- You evaluated both and reactive-interaction-gateway 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 reactive-interaction-gateway
RIG Reactive Interaction Gateway Makes frontend backend communication reactive and event driven. About The Reactive Interaction Gateway (RIG) is the glue between your client (frontend) and your backend. It makes communication between them easier by (click the links to learn more) picking up backend events and forwarding them to clients based on subscriptions: this makes your frontend apps reactive and eliminates the need for polling . You can do this asynchronously using Kafka, Nats or Kinesis. synchronously if you don't want to manage a (potentially complex) message broker system like Kafka. forwarding client…
read the full reactive-interaction-gateway overview →
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Frequently asked questions
Is fastapi or reactive-interaction-gateway more popular?
fastapi has 104,566 GitHub stars and reactive-interaction-gateway has 602. fastapi has the larger community by that measure.
Are fastapi and reactive-interaction-gateway free?
Both are open source. fastapi is licensed under MIT and reactive-interaction-gateway under Apache-2.0. Neither carries a licence fee.
What is the difference between fastapi and reactive-interaction-gateway?
fastapi is written in Python and reactive-interaction-gateway in Elixir. 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 reactive-interaction-gateway?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose reactive-interaction-gateway if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.