1.OAI / OpenAPI-Specification
The OpenAPI Specification Repository
+550 stars
from 30,741 · score 6.31
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
12 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
2.Redocly / redoc
📘 OpenAPI/Swagger-generated API Reference Documentation
+453 stars
from 25,543 · score 6.12
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.
+439 stars
from 28,631 · score 6.09
4.oasdiff / oasdiff
OpenAPI Diff and Breaking Changes
+266 stars
from 1,180 · score 5.59
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.
+175 stars
from 3,072 · score 5.17
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.
+123 stars
from 17,672 · score 4.82
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
+102 stars
from 1,039 · score 4.63
8.swagger-api / swagger-editor
Swagger Editor
+77 stars
from 9,390 · score 4.36
9.springdoc / springdoc-openapi
Library for OpenAPI 3 with spring-boot
+66 stars
from 3,677 · score 4.20
10.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.
+56 stars
from 827 · score 4.04
11.OpenAPITools / openapi-diff
Utility for comparing two OpenAPI specifications.
+34 stars
from 1,065 · score 3.56
12.IBM / openapi-to-graphqlArchived
Translate APIs described by OpenAPI Specifications (OAS) into GraphQL
+6 stars
from 1,637 · score 1.95