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Top 5 Ruby OpenAPI Projects
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Project mention: Documenting Your Rails API Shouldn’t Be Painful (Rails + OasRails) | dev.to | 2025-09-03
This article is written by Andrés, creator of > oas_rails. All opinions expressed > are their own.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Ruby OpenAPI discussion
Ruby OpenAPI related posts
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A Deep Dive into RSpec Tests in Ruby on Rails
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Generating an OpenAPI/Swagger spec from a Ruby on Rails API
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Build JSON schemas fluently!
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Documenting Forem's v1 API
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Is there a way to easily autogenerate API documentation for a Ruby on Rails API?
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OpenAPI Specification: The Complete Guide
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Looking for a full Rswag example project.
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A note from our sponsor - SaaSHub
www.saashub.com | 15 Jun 2026
Index
What are some of the best open-source OpenAPI projects in Ruby? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | rswag | 2,199 |
| 2 | rspec-openapi | 502 |
| 3 | oas_rails | 195 |
| 4 | umdio | 107 |
| 5 | openapi_contracts | 47 |
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