head to head · open source
OpenViking vs RapiDoc
OpenViking has 41,324 GitHub stars, 3,352 forks, 999 open issues and last shipped yesterday. RapiDoc has 1,910 stars, 326 forks, 138 open issues and last shipped 2 days ago. OpenViking leads on adoption by 2,064% (41,324 vs 1,910 stars). OpenViking is written in Python under AGPL-3.0; RapiDoc is written in JavaScript under MIT. OpenViking has attracted 8% as many forks as stars, RapiDoc 17%. OpenViking 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
| OpenViking | RapiDoc | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 1.9K |
| License | AGPL-3.0 | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 3.4K | ⑂ 326 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenViking if
- You weight community size — 41K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick RapiDoc if
- You want the RapiDoc feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and RapiDoc fits your workflow better
About OpenViking
The Context Database for AI Agents English / 中文 / 日本語 Website · Live Demo · GitHub · Issues · Docs · Blog Lark · WeChat · Discord · X What is OpenViking OpenViking is an open source context database for AI agents — one filesystem for everything an agent knows: knowledge, memory, and skills. Most agent memory is a black box: text goes in, embeddings come out, and nobody can see what was actually stored. OpenViking organizes context as a virtual filesystem under viking:// instead. Agents navigate it like files — ls , tree , read , write , grep — and you can open any directory to inspect and edit what your agent…
read the full OpenViking overview →
About RapiDoc
RapiDoc Custom Element for Open API spec viewing Sponsored by Zuplo Get a Stripe like API experience for your customers in minutes documentation, rate limiting and API key auth in minutes. Features Supports Swagger 2.0, OpenAPI 3.x.x Works with any framework or with no framework Allows making API calls Better Usability, all Models and Examples are expanded by default, eliminates the need to click and reveal. Request fields are pre populated with sample data Takes only one click to make an API call Request and response can be placed side by side for easy comparison Branding and Personalization features makes it…
read the full RapiDoc overview →
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Frequently asked questions
Is OpenViking or RapiDoc more popular?
OpenViking has 41,324 GitHub stars and RapiDoc has 1,910. OpenViking has the larger community by that measure.
Are OpenViking and RapiDoc free?
Both are open source. OpenViking is licensed under AGPL-3.0 and RapiDoc under MIT. Neither carries a licence fee.
What is the difference between OpenViking and RapiDoc?
OpenViking is written in Python and RapiDoc in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenViking or RapiDoc?
Choose OpenViking if you want the larger community (41,324 stars) or its AGPL-3.0 licence terms. Choose RapiDoc if its feature set, stack or MIT licence fits better. Both are self-hostable.