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/ltmenezes/fences
Fences is an LLM augmented OpenAPI interpreter with a visual interface to easily make requests
backend openapi swagger swagger-ui tools
Last synced: 21 Jun 2025
https://github.com/jobinsjp/api-generator
Generate api docs while writing test case (Laravel).
documentation laravel openapi phpunit swagger swagger-ui testing
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https://github.com/skbkontur/perl-jsonschema-validator
JSON Schema and OpenAPI data validator for Perl
json-schema openapi perl validation validator
Last synced: 21 Feb 2026
https://github.com/wubin1989/pullcode
pullcode is a typescript http client code generation cli compatible with Swagger 2 and OpenAPI 3
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Last synced: 12 Apr 2025
https://github.com/keift/yuppi
Schemas that can be converted to Yup and JSON Schema.
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https://github.com/kodius/rails-api-rest
Rails 7 REST (openapi) template repo with Dockerfile, docker-compose and docker-swarm stack
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https://github.com/microcks/microcks-spectral-ruleset
A set of rules for Spectral that allows linting OpenAPI and AsyncAPI spec for Microcks conventions
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https://github.com/omermecitoglu/next-openapi-json-generator
a Next.js plugin to generate OpenAPI documentation from route handlers
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https://github.com/magisteriis/riot-games-help-to-swagger-dotnet
Converts Riot Games' native help format to Swagger and OpenAPI.
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https://github.com/turbot/steampipe-plugin-openapi
Use SQL to instantly query resources from OpenAPI. Open source CLI. No DB required.
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https://github.com/pe-st/apidocs
Examples and comparison of how a REST API can be documented with different technologies
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https://github.com/deepgram/deepgram-api-specs
Deepgram's API Specs
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https://github.com/welcomattic/openapi-enricher
Enrich an OpenAPI spec with response examples to mock it efficiently
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https://github.com/kherp/swagger-codegen-openapi
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https://github.com/phillip-kruger/openapi-example
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https://github.com/devexps/go-micro
A microservice-oriented governance framework implemented by golang.
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https://github.com/koshevy/oapi3codegen
Moved here — https://github.com/koshevy/codegena
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https://github.com/birddevelper/notebookmanager
A Real World Example for Open API Restful Spring boot Application + Swagger + MySQL + Docker
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https://github.com/laura-rodriguez/dotnetconf22
Minimal API + OpenAPI Sample
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https://github.com/kaizhu256/node-swgg
this zero-dependency package will run a virtual swagger-ui server with persistent-storage in the browser, that your webapp can use (in-place of a real backend), with a working web-demo
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https://github.com/codeasashu/react-openapi-designer
A React based UI toolkit to develop openapi schema
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https://github.com/sgraaf/openapi-scraper
Track changes to RESTful APIs by git scraping their OpenAPI descriptions
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https://github.com/grktsh/falcon-oas
Design first approach with OpenAPI 3 for Falcon
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https://github.com/dermanomann/openapi-router
Routing adapter bridge for ApenAPI annotations.
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https://github.com/getsimpletool/mcpo-simple-server
MCP Calling Servere via SSE and OpenAPI
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https://github.com/oai/sig-travel
A repo for managing the travel working group within the OpenAPI Initiative (OAI)
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https://github.com/andostronaut/eslint-ai
eslint-ai is an cli tools that help us to lint and view suggestion from ai if we had a code error with eslint support.
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https://github.com/damienbod/webapiopenapi
.NET 9 Open API in ASP.NET Core
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https://github.com/ncrmro/rust-postgres-api
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https://github.com/fa0311/twitter_openapi_dart
Implementation of Twitter internal API in Dart
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https://github.com/vinitshahdeo/openapi-url-resolver
Resolve server URLs and extract hosts from OpenAPI 3.x and Swagger specifications.
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https://github.com/fspv/leetcode-swagger
Swagger file for leetcode API
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https://github.com/leidenheit/itarazzo-library
Library to parse, validate and execute an Arazzo specification.
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https://github.com/webman-tech/swagger
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https://github.com/zhudotexe/fastlmi
A fast framework (in both performance and development time) for creating language model interfaces - a more generic term for tools built for AIs like ChatGPT plugins.
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https://github.com/helciodev/weather-app
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https://github.com/el1s7/rests
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https://github.com/ksm26/function-calling-and-data-extraction-with-llms
Master the techniques of function-calling and structured data extraction with LLMs. Learn to enhance LLM capabilities, integrate web services, and build practical applications for real-world data usability.
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https://github.com/mikestead/yaml-fragment
Generate a yaml document from smaller yaml documents
Last synced: 29 Oct 2025
https://github.com/FlyingBird95/openapi-builder
A Flask extension to automatically add OpenAPI documentation for your Flask app.
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Last synced: 29 Jul 2025
https://github.com/eywek/oatyp
🏠 Build Typescript typings from OpenAPI definitions
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Last synced: 28 Jul 2025
https://github.com/zaydiscold/robinhood-cli-mcp-api
Robinhood CLI (MCP + API) — unofficial Robinhood API map + CLI + MCP for a real account (reads live, writes gated). The API map is the product.
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https://github.com/Akronae/nestjs-openapi-validation
✅ Validate NestJS DTOs with TypeScript/OpenAPI
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https://github.com/connectaman/fastapi-openapi-markdown-documentation-generator
Streamlit Application to generate FastAPI Documentation from the OpenAPI specs and convert it into a markdown API documentation
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Last synced: 15 Jun 2025
https://github.com/supermodeltools/openapi-spec
Spec for Supermodel public API in OpenAPI YAML. Use as a reference or generate your own clients.
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Last synced: 02 Apr 2026
https://github.com/zchee/protoc-gen-openapi
protoc-gen-openapi is a plugin for the Google protocol buffer compiler to generate openAPI V3 spec for any given input protobuf.
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Last synced: 29 Oct 2025
https://github.com/zchee/schema
Collection of JSON-Schema, OpenAPI, and well-known schemas
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https://github.com/badsyntax/mailinabox-api
HTTP client SDK's for the Mail-in-a-Box API.
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https://github.com/mockzilla/mockzilla-portable-template
Portable OpenAPI mock server template for Mockzilla with GitHub Actions and hosted API simulations
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Last synced: 15 May 2026
https://github.com/lavantien/distributed-booking-microservices
Laptop Booking Application in Golang and gRPC, load-balancing with NGINX, and fully compatible with HTTPS OpenAPI v3
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https://github.com/0xtheprodev/nestjs-clean-example
Clean Architecture Example using NestJS on Fastify
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https://github.com/springfox/springfox-grails-demo
Sample application to demonstrate the capabilities of integrating with grails
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https://github.com/supermodel/supermodel-cli
Boring data modeling
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https://github.com/ibaca/autorest-openapi
JAX-RS service interface generator for Open API specification
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https://github.com/jshmrtn/openapi-compiler
:gear: Eixir OpenAPI Compiler
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https://github.com/SAP-archive/hana-enterprise-search-engine
Sample application exposing SAP HANA search features as HTTP-REST services.
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Last synced: 09 May 2025
https://github.com/jean85/symfony-openapi-example
An example of using an OpenAPI spec in a Symfony application
Last synced: 23 Apr 2025
https://github.com/liveoaklabs/terraform-provider-readme
⛭ Terraform Provider for the ReadMe.com API
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https://github.com/criteria-labs/criteria-api-tools
Tools for working with the JSON Schema and OpenAPI specifications.
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https://github.com/hesedcasa/sdkck
Agentic CLI that provides multiple tools via plugins
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Last synced: 25 May 2026
https://github.com/apiboard/php-openapi
OpenAPI Specification parser for PHP 8. Supports both OAS 3.0 and 3.1.
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Last synced: 11 Apr 2025
https://github.com/gemyago/apigen
HTTP API Layer Generator for the Go (golang) projects
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https://github.com/mobigent/mobigent
Make mobile apps agent-ready with safe, typed AI capabilities.
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https://github.com/schwarzit/api-linter-service
RESTful service to provide API linting as-a-service
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https://github.com/apiaddicts/apigen.net
archetype generator .net microservices using openapi doc
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https://gitlab.com/vstconsulting/vstutils
Small framework for easy generates web-applications (SPA or Single Page Application).
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https://github.com/stfalcon-studio/swaggerbundle
:package: Creates a Swagger-ui page in Symfony application.
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https://github.com/stackql/openapisaurus
Deno based openapi document utility for splitting openapi spec and generating stackql providers
Last synced: 11 Jul 2025
https://github.com/theogravity/fastify-starter-turbo-monorepo
A starter project for building an API service using Fastify v5, kysely / postgres, turbo, and pnpm with sample tests and OpenAPI endpoint / database generators to help you build quickly
api boilerplate fastify kysely monorepo npm openapi package postgres rest-api starter starter-project swagger template testcontainers turborepo typescript vitest
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https://github.com/numberfour/openapi-scala
An opinionated library and SBT plugin for generating Scala code from OpenAPI 3.
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https://github.com/amorimjj/nestjs-redoc-try-out
NestJS-Redoc-Try-Out is an unofficial NestJS module for Redoc Try Out. It provides an easy way plugging in Redoc in a NestJS application.
Last synced: 10 Apr 2025
https://github.com/muniftanjim/express-joi-openapi
Express + Joi + OpenAPI
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https://github.com/cugu/swagger-go-chi
Generate a go-chi server from swagger
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https://github.com/oracle-japan/ochacafe-microprofile-demo
Helidon 4.x (= Virtual Thread版) に更新しました // MicroProfileとHelidon拡張機能のデモです - 随時新機能を追加してメンテナンスしています.
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https://github.com/larsbergqvist/sr-traffic
A traffic messages app with data from the Open API of Swedish Public Radio. Uses Angular, OpenLayers / OpenStreetMap and PrimeNG.
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https://github.com/hasanqq/openapi-starter
API documentation boilerplate for redoc (OpenAPI) with some extra features like automatically generated postman collection.
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https://github.com/nya1/ts-api-boilerplate
Quickly bootstrap your next TypeScript REST API project. Node 16+, auto OpenAPI, Prettier+ESLint, Jest
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https://github.com/nunchistudio/helix
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https://github.com/microfocus/swagger-ui
https://microfocus.github.io/swagger-ui/
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https://github.com/icewhaletech/icewhale-openapi
OpenAPI and API Document of ZimaOS and CasaOS
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https://github.com/open-solid/open-api-bundle
OpenAPI Symfony Bundle
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https://github.com/romain-gilliotte/spectral
Capture web traffic while browsing, then let an LLM analyze it into OpenAPI specs, GraphQL schemas, and ready-to-use CLI configs with auth
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https://github.com/simonkowallik/as3ninja
:octocat: AS3 Ninja is a templating and validation engine for your AS3 declarations. No matter if you prefer a CLI or Swagger REST API, AS3 Ninja has you covered!
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https://github.com/nawaz1991/lua-oasvalidator
A FAST Lua module to validate the HTTP requests against the OpenAPI specifications of the REST server.
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