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: 2026-07-08 00:22:40 UTC
- JSON Representation
https://github.com/soenneker/soenneker.grafana.httpclients
A thread-safe singleton HttpClient for Grafana's OpenAPI integration.
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https://github.com/soenneker/soenneker.bitly.openapiclientutil
A thread-safe utility for obtaining Bitly's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.zoho.openapiclientutil
A thread-safe utility for obtaining Zoho's OpenApiClient singleton.
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Last synced: 07 Jun 2026
https://github.com/soenneker/soenneker.vercel.httpclients
A thread-safe singleton HttpClient for Vercel's OpenAPI integration.
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Last synced: 03 May 2026
https://github.com/soenneker/soenneker.adyen.openapiclient
A .NET client generated from the Adyen OpenAPI schema, updated daily
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https://github.com/soenneker/soenneker.cloudinary.openapiclientutil
A thread-safe utility for obtaining Cloudinary's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.cloudflare.utils.client
An async thread-safe singleton for the Cloudflare OpenApiClient
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https://github.com/soenneker/soenneker.temporal.openapiclientutil
A thread-safe utility for obtaining Temporal's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.sendgrid.httpclients
A thread-safe singleton HttpClient for SendGrid's OpenAPI integration.
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https://github.com/soenneker/soenneker.vercel.openapiclient
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https://github.com/soenneker/soenneker.shippo.openapiclientutil
A thread-safe utility for obtaining Shippo's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.bandwidth.openapiclientutil
A thread-safe utility for obtaining Bandwidth's OpenApiClient singleton.
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https://github.com/oxhq/oxcribe
Runtime-first Laravel package that enriches routes with Oxinfer static analysis
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https://github.com/soenneker/soenneker.telnyx.openapiclient
A Telnyx .NET client generated from the Telnyx OpenAPI schema, updated daily
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https://github.com/soenneker/soenneker.calcom.openapiclientutil
A thread-safe utility for obtaining CalCom's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.intercom.openapiclientutil
A thread-safe utility for obtaining Intercom's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.sixtyfour.httpclients
A thread-safe singleton HttpClient for Sixtyfour's OpenAPI integration.
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https://github.com/soenneker/soenneker.firecrawl.openapiclientutil
A thread-safe utility for obtaining Firecrawl's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.make.openapiclientutil
A thread-safe utility for obtaining Make's OpenApiClient singleton.
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https://github.com/definancy/definancy-spec
Definancy contract — OpenAPI wire spec + cross-language conformance suite
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https://github.com/soenneker/soenneker.algolia.httpclients
A thread-safe singleton HttpClient for Algolia's OpenAPI integration.
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https://github.com/tdspora/tdm_rulesgen
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https://github.com/amandeepkaur1804/weather
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https://github.com/libninjacom/benchling-rs
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https://github.com/saibotsivad/glopen-routes
Some common routes that I find myself needing often, in glopen format.
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https://github.com/soenneker/soenneker.box.httpclients
A thread-safe singleton HttpClient for Box's OpenAPI integration.
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https://github.com/ghchinoy/openapi-from-grpc
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https://github.com/two-weeks-team/previewforgeforclaudecode
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https://github.com/badsyntax/lamernews-api-client
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https://github.com/soenneker/soenneker.asana.openapiclientutil
A thread-safe utility for obtaining Asana's OpenApiClient singleton.
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https://github.com/soenneker/soenneker.openrouter.openapiclientutil
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https://github.com/asafr-dev/supportdesk-api
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https://github.com/bonukai/typescript-routes-to-openapi
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https://github.com/foxfriends/openfetch
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https://github.com/echelon-solutions/swagger-codegen-router-template
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https://github.com/mpreu/husqvarna-api-clients
Autogenerated API clients for Husqvarna APIs.
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https://github.com/dacr/primes-server-akkahttp
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https://github.com/jimsten/ticketflow
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https://github.com/nakasar/serverless-api-doc-generator
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https://github.com/n8n-code/n8n-nodes-uniswap
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https://github.com/harmindersinghnijjar/question-translator-python
A Python program to translate GPT-3 answers from English to Punjabi using OpenAI and Google Translate.
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https://github.com/valerii15298/openapi-spec
OpenAPI Specification Rendered with Astro Starlight
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https://github.com/fs-frost/openapi2go
CLI tool to generate Go code from OpenAPI specifications.
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https://github.com/mike-brady/flask-apispec-tools
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https://github.com/leanhanc/hono-betterauth-openapi-starter
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https://github.com/mahmudindev/oreno-comicking-openapi-python
Python-based generated ComicKing OpenAPI client.
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https://github.com/thanadolps/swarch_rest
Simple REST API Assignment as part of Chulalongkorn 2110521 Software Architecture course.
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https://github.com/kwaytv/hono-steamer-api
⚡ High-performance Steam profile resolver API with MySQL-powered smart caching system | Built with Hono & TypeScript 🚀
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https://github.com/iamyasinkaya/morwinyon
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https://github.com/planet-a-ventures/affinity-client-python
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https://github.com/yinchi/openapi-cli
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https://github.com/webitel/webitel-openapi-client-go
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https://github.com/alexcheng1982/llm-openapi-function-spring-ai-generator
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https://github.com/lifeiscontent/openapi-sdk
Generate Typesafe SDK from OpenAPI spec
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https://github.com/90dy/ts-openapis
Typescript pre-generated OpenAPIs clients
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https://github.com/xpdojo/api
An open API (often referred to as a public API) is a publicly available application programming interface that provides developers with programmatic access to a proprietary software application or web service.
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https://github.com/majid-l/swagger-ui-docs
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https://github.com/the-orange-alliance/toa-docs
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https://github.com/soenneker/soenneker.asana.httpclients
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https://github.com/soenneker/soenneker.calendly.httpclients
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https://github.com/nexys-system/postman-openapi-ui
generate Open API from Postman collection
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https://github.com/ahilke/openapi-microservice-playground
A demo project to showcase and experiment with various OpenAPI technologies in a microservice environment.
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Last synced: 02 May 2026
https://github.com/soenneker/soenneker.netlify.httpclients
A thread-safe singleton HttpClient for Netlify's OpenAPI integration.
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Last synced: 17 Jun 2026
https://github.com/soenneker/soenneker.openrouter.httpclients
A thread-safe singleton HttpClient for OpenRouter's OpenAPI integration.
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Last synced: 07 Jun 2026
https://github.com/fadhlaouir/travelagencybackend
This project is a backend API for a travel agency, providing authentication features such as user registration, login, and logout. It also supports booking flights and hotels, similar to popular travel booking platforms like Booking.com.
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https://github.com/instantan/web
Build robust web applications with pure Go. No external dependencies, just the power of the standard library.
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https://github.com/vicradon/petstore
A modified version of the Petstore API offered by SwaggerHub
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https://github.com/nikitadev-work/pr-manager-service
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https://github.com/duquejo/quarkus-tokencache-microservice
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https://github.com/borolgs/axum-examples
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https://github.com/nebil175/lcu_dumper
🔍 Discover and extract League Client Update data easily with LCU Dumper, a fast, cross-platform CLI that outputs selected API endpoints to JSON files.
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https://github.com/bizrockman/modelcontextstandard
A minimal, protocol-agnostic standard to connect LLMs like drivers with external tools using existing APIs and formats like OpenAPI, HTTP, AS2, or CAN-Bus. No custom stacks. Just structured function calls.
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https://github.com/tpdlshdmlrkfmcla/seoul_toilet
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https://github.com/hyesungoh/cultural_heritage_administration_api
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https://github.com/slaterhaus/openapi-sdk-generator
Generate TypeScript SDKs, Postman collections, GraphQL schemas, and cURL commands from OpenAPI specifications
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https://github.com/rubenoalvarado/nestjs-drizzle-template
Project template to work with Drizzle in a NestJs project. It uses config module, throttler for rate limit and a custom drizzle module.
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https://github.com/alexandrecpedro/todoapi
ToDo API
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https://github.com/k5ki/oapigen-poc
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https://github.com/soenneker/soenneker.openhands.httpclients
A thread-safe singleton HttpClient for OpenHands's OpenAPI integration.
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https://github.com/developerkunal/openmorph
OpenMorph: Modern CLI & TUI for safe, interactive OpenAPI vendor extension key transforms with colorized diffs, dry-run, and config merging.
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https://github.com/drewalth/openapi-generator
Generate an OpenAPI Spec file from ORM model definitions
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https://github.com/fibercrypto/libjs-skycoin
Javascript (web & node) client library for the Skycoin API
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https://github.com/rickyli79/egg-openapi-router
init `router` and connect `controller` by Openapi-doc. validate the request and response by Openapi-doc
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https://github.com/shivam-dhir/unified-payment-gateway
A scalable backend microservice built with Spring Boot to handle secure online payments, supporting multiple payment gateways, real-time processing, and multi-currency transactions with high availability and security.
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https://github.com/takeruun/fastify-sample
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https://github.com/owlebot/open-api
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https://github.com/leozqin/laridae
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https://github.com/soenneker/soenneker.together.openapiclient
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https://github.com/go-api-libs/notion
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