1.OAI / OpenAPI-Specification
The OpenAPI Specification Repository
+79 stars
from 31,212 · score 4.38
Trending repositories
Ranked by Attention Score: stars gained over the last 30 complete days
11 repositories by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
2.Redocly / redoc
📘 OpenAPI/Swagger-generated API Reference Documentation
+79 stars
from 25,917 · score 4.38
3.swagger-api / swagger-ui
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
+64 stars
from 29,006 · score 4.17
4.oasdiff / oasdiff
OpenAPI Diff and Breaking Changes
+51 stars
from 1,395 · score 3.95
5.stoplightio / spectral
A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x.
+28 stars
from 3,219 · score 3.37
6.swagger-api / swagger-codegen
swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.
+14 stars
from 17,781 · score 2.71
7.daveshanley / vacuum
vacuum is the worlds fastest and most versatile OpenAPI, Arazzo, AsyncAPI & JSON Schema linter, docs generator and toolkit. It tears through API specs at light speed. 100% compatible with Spectral rulesets, and OpenAPI 3.0, 3.1 and 3.2
+10 stars
from 1,131 · score 2.40
8.pb33f / libopenapi
libopenapi is a fully featured, high performance OpenAPI 3.2, 3.1, 3.0, Overlays and Arazzo parser, library, validator and toolkit for go applications.
+8 stars
from 875 · score 2.20
9.springdoc / springdoc-openapi
Library for OpenAPI 3 with spring-boot
+7 stars
from 3,736 · score 2.08
10.swagger-api / swagger-editor
Swagger Editor
+5 stars
from 9,462 · score 1.79
11.OpenAPITools / openapi-diff
Utility for comparing two OpenAPI specifications.
+3 stars
from 1,096 · score 1.39