Topics / #openapi3

Openapi3 projects on GitHub

The OpenAPI 3 specification for describing REST APIs.

As of , the most-starred Openapi3 projects on GitHub are fastapi (103.1K stars), bruno (47.7K stars) and swagger-ui (29K stars). GitHub.Locker tracks 8 Openapi3 repositories with 283.9K stars combined. The fastest-growing on October 16 was fastapi, with +34 stars in a day.

8Projects
283.9KStars in total
+81Stars in a day
Browse in the catalog →github.com/topics/openapi3 ↗

Hot right now

Most stars gained in a day · Oct 16

+34

fastapi

fastapi/fastapi · ★ 103.1K

FastAPI is a modern Python web framework for building APIs using standard Python type hints, with automatic data validation and interactive documentation.

+24

bruno

usebruno/bruno · ★ 47.7K

Bruno is an open-source API client for exploring and testing REST, GraphQL, and other APIs, built as a lightweight alternative to Postman and Insomnia.

+7

apisix

apache/apisix · ★ 17.2K

Apache APISIX is an open-source, dynamic, real-time, high-performance API Gateway that also serves as an AI Gateway. It provides traffic management — load balancing, canary release, circuit breaking, authentication, observability — for both north-south and east-west traffic.

+6

scalar

scalar/scalar · ★ 16.3K

Scalar is an open-source API platform: a modern, offline-first REST API client built for OpenAPI (a Postman alternative), plus an interactive API reference that renders OpenAPI/Swagger documents and looks nothing like 2011.

The all-time top

8 projects · by stars

  1. #1 · fastapi/fastapi

    fastapi

    FastAPI is a modern Python web framework for building APIs using standard Python type hints, with automatic data validation and interactive documentation.

    103.1K
  2. #2 · usebruno/bruno

    bruno

    Bruno is an open-source API client for exploring and testing REST, GraphQL, and other APIs, built as a lightweight alternative to Postman and Insomnia.

    47.7K
  3. #3 · swagger-api/swagger-ui

    swagger-ui

    Swagger UI turns an OpenAPI (formerly Swagger) spec into interactive, visual API documentation: your team or end consumers can see and try the API's resources without any implementation logic in place.

    29K
  1. 4

    openapi-generator

    26.8KOpenAPITools/openapi-generator · Java

    OpenAPI Generator creates API client libraries (SDKs), server stubs, documentation and configuration files automatically from an OpenAPI spec — versions 2.0 and 3.0 are supported, with 3.1 in beta.

  2. 5

    redoc

    26KRedocly/redoc · TypeScript

    Redoc is an open-source tool that generates API reference documentation from OpenAPI (formerly Swagger) definitions — it turns your spec file into a polished, readable reference page.

  3. 6

    swagger-codegen

    17.8Kswagger-api/swagger-codegen · Mustache

    Swagger Codegen is a template-driven engine that takes an OpenAPI or Swagger definition and automatically generates API client libraries (SDKs), server stubs and API documentation from it.

  4. 7

    apisix

    17.2Kapache/apisix · Lua

    Apache APISIX is an open-source, dynamic, real-time, high-performance API Gateway that also serves as an AI Gateway. It provides traffic management — load balancing, canary release, circuit breaking, authentication, observability — for both north-south and east-west traffic.

  5. 8

    scalar

    16.3Kscalar/scalar · TypeScript

    Scalar is an open-source API platform: a modern, offline-first REST API client built for OpenAPI (a Postman alternative), plus an interactive API reference that renders OpenAPI/Swagger documents and looks nothing like 2011.

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