head to head · open source
OpenAPI-Specification vs RWKV-Runner
OpenAPI-Specification has 31,225 GitHub stars, 9,155 forks, 80 open issues and last shipped 10 days ago. RWKV-Runner has 6,482 stars, 601 forks, 178 open issues and last shipped 17 days ago. OpenAPI-Specification leads on adoption by 382% (31,225 vs 6,482 stars). OpenAPI-Specification is written in Markdown under Apache-2.0; RWKV-Runner is written in TypeScript under MIT. OpenAPI-Specification has attracted 29% as many forks as stars, RWKV-Runner 9%. OpenAPI-Specification 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
| OpenAPI-Specification | RWKV-Runner | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 6.5K |
| License | Apache-2.0 | MIT |
| Written in | Markdown | TypeScript |
| Last push | 2026-09-11 | 2026-09-04 |
| Forks | ⑂ 9.2K | ⑂ 601 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenAPI-Specification if
- You weight community size — 31K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Markdown
- 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 OpenAPI-Specification
The OpenAPI Specification (OAS) is a community driven open specification hosted within the OpenAPI Initiative, a Linux Foundation Collaborative Project. It defines a standard, programming language agnostic interface description for HTTP APIs, represented in YAML or JSON. The specification lives in the HTTP API tooling ecosystem, alongside the tools, libraries, and implementations listed in the repository's implementations document. The project source is released under the Apache 2.0 license, and its GitHub repository has accumulated roughly 31,000 stars and 9,100 forks across 13 years of activity.…
read the full OpenAPI-Specification 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 OpenAPI-Specification or RWKV-Runner more popular?
OpenAPI-Specification has 31,225 GitHub stars and RWKV-Runner has 6,482. OpenAPI-Specification has the larger community by that measure.
Are OpenAPI-Specification and RWKV-Runner free?
Both are open source. OpenAPI-Specification is licensed under Apache-2.0 and RWKV-Runner under MIT. Neither carries a licence fee.
What is the difference between OpenAPI-Specification and RWKV-Runner?
OpenAPI-Specification is written in Markdown 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, OpenAPI-Specification or RWKV-Runner?
Choose OpenAPI-Specification if you want the larger community (31,225 stars) or its Apache-2.0 licence terms. Choose RWKV-Runner if its feature set, stack or MIT licence fits better. Both are self-hostable.