head to head · open source
OpenAPI-Specification vs Integuru
OpenAPI-Specification has 31,225 GitHub stars, 9,155 forks, 80 open issues and last shipped 9 days ago. Integuru has 4,766 stars, 382 forks, 24 open issues and last shipped 3 months ago. OpenAPI-Specification leads on adoption by 555% (31,225 vs 4,766 stars). OpenAPI-Specification is written in Markdown under Apache-2.0; Integuru is written in Python under AGPL-3.0. OpenAPI-Specification has attracted 29% as many forks as stars, Integuru 8%. OpenAPI-Specification was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (apis, openapi), 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
| OpenAPI-Specification | Integuru | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 4.8K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Markdown | Python |
| Last push | 2026-09-11 | 2026-06-24 |
| Forks | ⑂ 9.2K | ⑂ 382 |
| 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 Integuru if
- You want the Integuru feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and Integuru 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 Integuru
Integuru is an open source Python AI agent that builds permissionless integrations by reverse engineering platforms' internal APIs, aimed at developers who need to automate a platform that provides no public API of its own.
read the full Integuru overview →
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Frequently asked questions
Is OpenAPI-Specification or Integuru more popular?
OpenAPI-Specification has 31,225 GitHub stars and Integuru has 4,766. OpenAPI-Specification has the larger community by that measure.
Are OpenAPI-Specification and Integuru free?
Both are open source. OpenAPI-Specification is licensed under Apache-2.0 and Integuru under AGPL-3.0. Neither carries a licence fee.
What is the difference between OpenAPI-Specification and Integuru?
OpenAPI-Specification is written in Markdown and Integuru in Python. 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 Integuru?
Choose OpenAPI-Specification if you want the larger community (31,225 stars) or its Apache-2.0 licence terms. Choose Integuru if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.