head to head · open source
fastapi vs RWKV-Runner
fastapi has 102,471 GitHub stars, 9,913 forks, 78 open issues and last shipped 2 days ago. RWKV-Runner has 6,482 stars, 601 forks, 178 open issues and last shipped 16 days ago. fastapi leads on adoption by 1,481% (102,471 vs 6,482 stars). fastapi is written in Python under MIT; RWKV-Runner is written in TypeScript under MIT. fastapi has attracted 10% as many forks as stars, RWKV-Runner 9%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api), 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 | RWKV-Runner | |
|---|---|---|
| GitHub stars | ★ 102K | ★ 6.5K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-18 | 2026-09-04 |
| Forks | ⑂ 9.9K | ⑂ 601 |
| 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 RWKV-Runner if
- You want the RWKV-Runner feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and RWKV-Runner 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 RWKV-Runner
RWKV Runner is a management and startup tool for RWKV, an open source large language model that is available for commercial use. It ships as a lightweight executable of only a few megabytes and automates the work of getting a model running, so that the user does not have to assemble the runtime, dependencies, and serving stack by hand. The project is written in TypeScript and built with Wails, and it is distributed under the MIT license from the josStorer repository. It lives in the RWKV ecosystem and in the broader local inference tooling space, with a companion site at rwkv.com.
read the full RWKV-Runner overview →
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Frequently asked questions
Is fastapi or RWKV-Runner more popular?
fastapi has 102,471 GitHub stars and RWKV-Runner has 6,482. fastapi has the larger community by that measure.
Are fastapi and RWKV-Runner free?
Both are open source. fastapi is licensed under MIT and RWKV-Runner under MIT. Neither carries a licence fee.
What is the difference between fastapi and RWKV-Runner?
fastapi is written in Python and RWKV-Runner in TypeScript. 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 RWKV-Runner?
Choose fastapi if you want the larger community (102,471 stars) or its MIT licence terms. Choose RWKV-Runner if its feature set, stack or MIT licence fits better. Both are self-hostable.