OpenAPI Specification

The OpenAPI Specification (OAS), previously known as the Swagger Specification, is a specification for a programming language-agnostic, machine-readable interface definition language for describing, producing, consuming, and visualizing web services. OpenAPI documents describe API services and are represented in YAML or JSON formats.

GitHub: https://github.com/topics/openapi
Wikipedia: https://en.wikipedia.org/wiki/OpenAPI_Specification
Repo: https://github.com/OAI/OpenAPI-Specification
Created by: OpenAPI Initiative, Tony Tam, Darrel Miller, Mike Ralphson, Ron Ratovsky, Uri Sarid, Jason Harmon
Released: August 10, 2011
Related Topics: json-schema, raml, rest-api,
Aliases: open-api, swagger-spec, swagger-specification, openapi-spec, openapi-specification, open-api-specification, oas, openapi-description,
Last updated: 2026-07-05 00:18:41 UTC
JSON Representation

https://github.com/murilobeltrame/springjerseydemoapi

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https://github.com/aitthi/rust-api-example

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https://github.com/wronai/allama

testing and benchmarking suite for Large Language Models (LLMs) focused on Python code generation. The project enables automatic quality assessment of generated code through various metrics and generates detailed HTML reports.

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https://github.com/elchin92/avito-mcp

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https://github.com/d4sma/testcontainers-java

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Zero-annotation API documentation generator for Laravel or Lumen

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..an OAS-generation library for Tornado.

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https://github.com/fibercrypto/libskycoin-cpp

Skycoin client libraries for the C++ language

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Golang OpenAPI Specification definitions

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https://github.com/jcs090218/swagger-it

Automatically generate the swagger.io yaml file for your project.

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https://github.com/jaqx0r/rules_oapi_codegen

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Easily combine APIs from openapi-generated TypeScript client libraries

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https://github.com/mrnicolass/v2com-library-training-backend

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https://github.com/curegit/stylegan-fastapi

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https://github.com/foncki/time-complexity-calculator

This Chrome extension allows you to easily calculate the time complexity of a function. This tool is useful for software developers looking to optimize their code and improve its performance. With this extension, you can quickly and easily determine the efficiency of your functions and make informed decisions about how to optimize them.

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