An open API service indexing awesome lists of open source software.

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.

https://github.com/arkptz/mitm2openapi

Convert mitmproxy flow dumps and HAR files to OpenAPI 3.0 — fast Rust alternative to mitmproxy2swagger with HAR support

api api-documentation cli har mitmproxy mitmproxy2swagger openapi openapi-generator reverse-engineering rust rust-cli swagger

Last synced: 27 Apr 2026

https://github.com/mohammadbekran/food-management-app

A food delivery and management system built with NestJS, TypeScript, and PostgreSQL.

aws-s3 jwt-authentication nestjs openapi postgresql swagger typeorm typescript

Last synced: 24 Apr 2026

https://github.com/soenneker/soenneker.workos.httpclients

A thread-safe singleton HttpClient for WorkOs's OpenAPI integration.

api csharp dotnet httpclient httpclients openapi singleton workos workosopenapihttpclient

Last synced: 06 Jun 2026

https://github.com/soenneker/soenneker.sixtyfour.openapiclientutil

A thread-safe utility for obtaining Sixtyfour's OpenApiClient singleton.

client csharp dotnet kiota openapi openapiclientutil singleton sixtyfour sixtyfouropenapiclientutil util

Last synced: 06 Jun 2026

https://github.com/definancy/definancy-spec

Definancy contract — OpenAPI wire spec + cross-language conformance suite

conformance openapi spec

Last synced: 06 Jun 2026

https://github.com/soenneker/soenneker.algolia.httpclients

A thread-safe singleton HttpClient for Algolia's OpenAPI integration.

algolia algoliaopenapihttpclient api csharp dotnet httpclient httpclients openapi singleton

Last synced: 06 Jun 2026

https://github.com/cl0v1s/openapi-mcpify

Turn any OpenAPI spec into a live MCP server — with built-in confirmation prompts for mutating operations.

elicitatio mcp openapi

Last synced: 24 Apr 2026

https://github.com/tdspora/tdm_rulesgen

FastAPI service for safe rule parsing, compilation, preview execution, and sandbox-backed dataset generation.

fastapi openapi pydantic python rules-engine synthetic-data

Last synced: 24 Apr 2026

https://github.com/merkys/openapi-render

Rendering tools for OpenAPI v3

openapi perl5

Last synced: 24 Apr 2026

https://github.com/libninjacom/benchling-rs

benchling client, generated from the OpenAPI spec

benchling openapi rust

Last synced: 25 Apr 2026

https://github.com/saibotsivad/glopen-routes

Some common routes that I find myself needing often, in glopen format.

api glopen openapi

Last synced: 25 Apr 2026

https://github.com/soenneker/soenneker.box.httpclients

A thread-safe singleton HttpClient for Box's OpenAPI integration.

api box boxopenapihttpclient csharp dotnet httpclient httpclients openapi singleton

Last synced: 06 Jun 2026

https://github.com/ghchinoy/openapi-from-grpc

gRPC service with autogenerated OpenAPI spec via gRPC Gateway for REST/HTTP

grpc-gateway openapi

Last synced: 25 Apr 2026

https://github.com/adrianhdezm/openapi-tools

Just another CLI tool to work with OpenAPI specifications, including generation, validation, and more.

openapi openapi-tooling python zod

Last synced: 14 Mar 2026

https://github.com/netgen/openapi

Netgen's OpenAPI implementation

openapi openapi-specification

Last synced: 25 Apr 2026

https://github.com/voznov/zod-dto

Zod to DTO classes for TypeScript & NestJS & OpenAPI

dto json-schema nestjs nestjs-zod openapi swagger typescript validation zod zod-dto

Last synced: 06 Jun 2026

https://github.com/two-weeks-team/previewforgeforclaudecode

3-DD Methodology: PreviewDD → SpecDD → TestDD. 143 Opus 4.7 agents turn one-line idea → frozen full-stack app. Claude Code plugin. Built with Opus 4.7 hackathon.

3-dd anthropic claude-code claude-code-plugin hackathon multi-agent nestia nextjs openapi opus-4-7 preview-driven-development spec-driven-development test-driven-development typescript

Last synced: 26 Apr 2026

https://github.com/sookwalinga/ask_sam

Web app consuming the openAI GPT3 api. Feel free to "ask sam anything" 😉

gpt3 javascript openapi

Last synced: 11 May 2026

https://github.com/soenneker/soenneker.algolia.openapiclientutil

A thread-safe utility for obtaining Algolia's OpenApiClient singleton.

algolia algoliaopenapiclientutil api client csharp dotnet kiota openapi openapiclientutil singleton util

Last synced: 11 May 2026

https://github.com/ndrsg/openapi-trait

Use rust macros to derive a trait from OpenAPI that you can implement

axum client codegen codegenerator generator macro macros-rust openapi proc-macro reqwest rest rest-api rust

Last synced: 02 Jul 2026

https://github.com/soenneker/soenneker.posthog.openapiclientutil

A thread-safe utility for obtaining PostHog's OpenApiClient singleton.

api client csharp dotnet kiota openapi openapiclientutil posthog posthogopenapiclientutil singleton util

Last synced: 16 May 2026

https://github.com/jinjihuang88-ui/maplebridge-open

Public API docs for MapleBridge, a North America to China B2B supplier matching platform.

ai b2b china-sourcing llm openapi small-commodity supply-chain trade-matching webhook yiwu

Last synced: 27 Apr 2026

https://github.com/soenneker/soenneker.firecrawl.httpclients

A thread-safe singleton HttpClient for Firecrawl's OpenAPI integration.

api csharp dotnet firecrawl firecrawlopenapihttpclient httpclient httpclients openapi singleton

Last synced: 07 Jun 2026

https://github.com/robinmordasiewicz/f5xc-api-enriched

Enriched F5 Distributed Cloud OpenAPI specifications with CLI metadata

api f5xc openapi

Last synced: 25 May 2026

https://github.com/unexist/showcase-documentation-openapi-asciidoc

Showcase for OpenApi/Swagger with AsciiDoc [MIRROR]

asciidoc openapi quarkus redoc swagger

Last synced: 27 Apr 2026

https://github.com/hozipitol/artifex

Artifex is a full-stack AI image generation application that allows users to create unique images from text prompts using OpenAI's DALL-E model. The project demonstrates advanced web development and AI integration skills.

mern-stack openai-api openapi reactjs tailwind-css

Last synced: 13 Apr 2026

https://github.com/echelon-solutions/swagger-codegen-router-template

A template for swagger-codegen that generates a Node.js project that validates and routes requests to a url.

api nodejs oas openapi swagger swagger-codegen swagger-specification

Last synced: 28 Apr 2026

https://github.com/ricardozanini/openapi-codegen-poc

Proof Of Concept of OpenAPI Generator Embedded Codegen with Serverless Workflow SDK

openapi serverless-workflow

Last synced: 28 Apr 2026

https://github.com/stjoo0925/openapi-test

openAPI-Test

openapi springboot

Last synced: 05 Feb 2026

https://github.com/mpreu/husqvarna-api-clients

Autogenerated API clients for Husqvarna APIs.

husqvarna-automower lua openapi

Last synced: 28 Apr 2026

https://github.com/jimsten/ticketflow

High-concurrency booking/ticketing system (MVP first)

clean-architecture ddd hexagonal-architecture java openapi redis spring-boot

Last synced: 28 Apr 2026

https://github.com/bamp/arrobavolver-api

API foundation for end-to-end product prototypes (contracts, integrations, flows)

api backend integrations openapi product protoype

Last synced: 28 Apr 2026

https://github.com/nakasar/serverless-api-doc-generator

Generate Documentation API from serverless.yml and JS docstrings.

api documentation-generator openapi serverless

Last synced: 28 Apr 2026

https://github.com/libninjacom/mangadex-rs

mangadex client, generated from the OpenAPI spec

mangadex openapi rust

Last synced: 13 May 2026

https://github.com/greyorange-labs/rebar3_openapi

Rebar3 plugin for bidirectional OpenAPI and Erlang/Cowboy code generation

api code-generation cowboy erlang openapi rebar3 rebar3-plugin

Last synced: 13 May 2026

https://github.com/sukramj/openccu-loom-types

Generated Pydantic v2 models and enum types for the openccu-loom REST + WebSocket contract

code-generation home-assistant homematic homematicip openapi pydantic python rest-api type-hints websocket

Last synced: 28 Jun 2026

https://github.com/harmindersinghnijjar/question-translator-python

A Python program to translate GPT-3 answers from English to Punjabi using OpenAI and Google Translate.

googletrans gpt-3 openapi python tkinter

Last synced: 29 Apr 2026

https://github.com/soenneker/soenneker.composio.openapiclientutil

A thread-safe utility for obtaining Composio's OpenApiClient singleton.

client composio composioopenapiclientutil csharp dotnet kiota openapi openapiclientutil singleton util

Last synced: 06 Jun 2026

https://github.com/soenneker/soenneker.stoplight.openapibundler

A utility library to download and bundle OpenApi specs from Stoplight

bundle csharp dotnet fixing merge openapi openapibundler stoplight stoplightopenapibundler util

Last synced: 04 Jul 2026

https://github.com/headwindz/public-holidays

public holidays open apis

openapi public-holidays

Last synced: 29 Apr 2026

https://github.com/alexandramartinez/todo-app-mule-curietechai

Everything discussed in the 'From Zero to API with MuleSoft, CurieTech AI & Anypoint Code Builder' playlist.

ai api api-spec api-specification curietechai mule mule-app mule4 mulesoft mysql mysql-database oas oas3 openapi openapi-spec openapi-specification openapi3

Last synced: 29 Apr 2026

https://github.com/fs-frost/openapi2go

CLI tool to generate Go code from OpenAPI specifications.

codegen openapi

Last synced: 29 Apr 2026

https://github.com/grofei/ps-bconnectopenapi

Powershell module for the baramundi OpenAPI Interface. This module is NOT a product of baramundi software GmbH.

automation baramundi bconnect openapi

Last synced: 14 May 2026

https://github.com/leanhanc/hono-betterauth-openapi-starter

A Hono 🔥 starter project using Drizzle ORM and Stoker helpers, featuring Better Auth integration and API documentation powered by OpenAPI.

better-auth drizzle-orm hono openapi pino scalar

Last synced: 29 Apr 2026

https://github.com/kanryu/validagen

A validator generator for structs/maps for your go applications.

generator go openapi ozzo-validation validator

Last synced: 29 Apr 2026

https://github.com/sla-ppy/gocusign

[F] Backend integration for (docu)ment (sign)ing made with (Go)

backend curl get golang http openapi post

Last synced: 14 May 2026

https://github.com/evilurge/openapivalidator

Test your openapispecs

openapi openapi-validation

Last synced: 13 Oct 2025

https://github.com/av/tools

Docker image for installing and running tools for LLM agents (MCP, OpenAPI, UVX, NPX, Python)

agents containerization docker image llm mcp openapi package tools

Last synced: 29 Apr 2026

https://github.com/alexandrelamberty/nidus-api-spec

:diamond_shape_with_a_dot_inside: Home Automation and Monitoring API Specification using the OpenAPI standard.

api home-automation home-monitoring openapi specification yaml

Last synced: 13 Oct 2025

https://github.com/oamerge/oamerge

Merge and share OpenAPI endpoints and schemas.

api generator merge oamerge openapi

Last synced: 30 Apr 2026

https://github.com/mreiche/marketstack-openapi

Generated OpenAPI for Marketstack

marketstack openapi

Last synced: 30 Apr 2026

https://github.com/mahmudindev/oreno-comicking-openapi-python

Python-based generated ComicKing OpenAPI client.

client comics openapi sdk

Last synced: 30 Apr 2026

https://github.com/woile/drf-serializers

exploring DRF Serializers with OpenAPI

django-rest-framework drf openapi python3 serializers

Last synced: 30 Apr 2026

https://github.com/ziul/swagger-operator

A Kubernetes operator that automatically discovers services annotated with OpenAPI/Swagger documentation and aggregates their documentation in a single UI.

containers fastapi helm kopf kubernetes kubernetes-operator openapi python swagger-ui

Last synced: 13 Apr 2026

https://github.com/gibtang/agent-utils

One API key. Agent-native utilities for AI agents. File hosting, PII redaction, dead letter queues, and more.

agent-tools ai-agents api dead-letter-queue file-hosting human-in-the-loop llm mcp nextjs openapi pii-redaction typescript

Last synced: 12 Jun 2026

https://github.com/serguun42/airport-frontend

Frontend for Airport Project built with React 18

openapi react

Last synced: 13 Apr 2026

https://github.com/shockey/awywi

Code and slides for my APIStrat 2018 talk

apistrat apistrat18 openapi swagger

Last synced: 09 May 2026

https://github.com/livingdocsio/openapi

OpenAPI (Swagger) spec for Livingdocs Public API

openapi openapi-specification openapi3

Last synced: 11 Oct 2025

https://github.com/markrosemaker/errpath

Utilities for creating and managing detailed error paths, allowing users to construct error messages that include the full path to the error. Useful when traversing complex data structures such as JSON or YAML files. Example: components.schemas["Pet"].allOf[0]: invalid schema

error-handling errors golang json openapi yaml

Last synced: 14 Apr 2026

https://github.com/planet-a-ventures/affinity-client-python

API client for Affinity (www.affinity.co)

affinity client openapi python

Last synced: 01 May 2026

https://github.com/mikeirvingweb/dotnet-open-api-swagger-demo

As demoed at the Dot Net North .NET Conf Local Event in December 2020. A simple overview of Open API and Swagger in .NET

csharp dotnet openapi swagger

Last synced: 16 Apr 2026

https://github.com/n8n-code/n8n-nodes-odoo-v17

Odoo v17 is an all-in-one open-source ERP for managing all aspects of business in a single platform

api automation n8n n8n-community-node n8n-node odoo-v17 openapi swagger workflow

Last synced: 14 Jun 2026

https://github.com/allansomensi/printer-supplies-api

A simple REST API using Axum for managing printer supplies, such as toners and drums.

api axum crud docker openapi postgresql printer rust sqlx stock-management swagger-ui

Last synced: 11 Oct 2025

https://github.com/scm-manager/scm-breakingchange-maven-plguin

Proof of concept for breaking api change detection

breaking-changes java maven maven-plugin openapi scm-manager

Last synced: 13 Apr 2026

https://github.com/ophiosdev/openapi-generator-di

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

openapi openapi-generator openapi-generator-cli openapi-generators

Last synced: 10 Jan 2026

https://github.com/straylittlepunk/deepl

Openapi auto generated deepl api client

deepl openapi rust

Last synced: 01 May 2026

https://github.com/marvinvista/agentic-ready

Audit whether agents can find, call, trust, price, and defend your B2B product.

agents ai-agents b2b developer-tools docs llms-txt mcp openapi

Last synced: 14 Jun 2026

https://github.com/ugurcan-aytar/rampart

Cloud-agnostic supply chain incident response engine. One OpenAPI contract, four consumers: Backstage plugin, GitHub Action, CLI, Slack. Go + Rust, stdlib-first.

backstage clean-architecture cli devsecops github-actions golang incident-response monorepo openapi platform-engineering rust sbom supply-chain-security typescript

Last synced: 01 May 2026

https://github.com/duongnguyen321/open-api

Open API for coder, programing

country nestjs openapi

Last synced: 01 May 2026

https://github.com/jkawamoto/go-siastats

A Golang client library for siastats.info

blockchain golang openapi sia

Last synced: 14 Jan 2026

https://github.com/asrieldreemurrgm/microservices_online_selling

A Java 21 Spring Boot microservices platform for managing clients, products, and sales. It leverages MongoDB for persistence, Spring Cloud Config Server for centralized configuration, OpenAPI/Swagger for API documentation, and Feign clients for inter-service communication.

client-service config-server dto feign-client java java-21 microservices mongodb openapi product-service rest-api restapi sales-service spring-boot spring-boot-3 spring-cloud springboot swagger

Last synced: 14 Apr 2026

https://github.com/mlafeldt/go-launchdarkly

Go client library for the LaunchDarkly REST API

feature-flags feature-toggles golang launchdarkly openapi swagger

Last synced: 02 May 2026

https://github.com/merkys/openapi-3to2

Convert OpenAPI v3 descriptions to v2

openapi perl5

Last synced: 02 May 2026

https://github.com/heyymamana/chat-genius

A react-native chatbot application which contains multiple chatbots, designed to offer a human-like interaction to various domains.

bots chatbot chatbots openai openapi react react-components react-hooks react-native

Last synced: 14 Apr 2026

https://github.com/edavis25/crypto_history_api

API for retrieving personally scraped historic crypto price data from various exchanges.

crypto cryptocompare cryptocurrency influxdb laravel openapi openapi3 php poloniex

Last synced: 02 May 2026

https://github.com/kleister/kleister-go

Kleister: SDK for Golang

go golang kleister minecraft openapi sdk swagger

Last synced: 02 May 2026

https://github.com/majid-l/swagger-ui-docs

Swagger UI constructed using an OpenAPI Specification document containing the definition for an e-commerce RESTful API service that I've created.

openapi swagger-ui yaml

Last synced: 02 May 2026

https://github.com/the-orange-alliance/toa-docs

📄Swagger Docs site hosting The Orange Alliance's OpenAPI Spec

first-tech-challenge ftc openapi swagger the-orange-alliance

Last synced: 02 May 2026

https://github.com/soenneker/soenneker.asana.httpclients

A thread-safe singleton HttpClient for Asana's OpenAPI integration.

api asana asanaopenapihttpclient csharp dotnet httpclient httpclients openapi openapiclient singleton

Last synced: 07 Jun 2026

https://github.com/soenneker/soenneker.calendly.httpclients

A thread-safe singleton HttpClient for Calendly's OpenAPI integration.

calendar calendly calendlyopenapihttpclient csharp dotnet httpclient httpclients openapi sdk singleton

Last synced: 02 May 2026

https://github.com/nexys-system/postman-openapi-ui

generate Open API from Postman collection

openapi openapi3 postman

Last synced: 02 May 2026

https://github.com/ahilke/openapi-microservice-playground

A demo project to showcase and experiment with various OpenAPI technologies in a microservice environment.

graphql microservice nestjs openapi playground

Last synced: 02 May 2026