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/valerii15298/openapi-spec

OpenAPI Specification Rendered with Astro Starlight

openapi openapi-spec openapi-specification

Last synced: 29 Apr 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/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.

chrome-extension html openapi vanilla-javascript

Last synced: 14 May 2026

https://github.com/wilson0x4d/tornado-openapi

..an OAS-generation library for Tornado.

oas oas3 openapi openapi3 swagger swagger-ui tornado

Last synced: 05 Mar 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/dfberry/azure-rust-mcp-server-apim

A production-ready random song API built with Rust and Azure Container Apps, featuring Model Context Protocol (MCP) integration for AI tools.

azure azure-api-management azure-container-apps example-project mcp-server openapi rust

Last synced: 13 Feb 2026

https://github.com/aihxp/sumac

Sumac: bring out what your tools can do — one Rust binary to bridge skills, MCP, and APIs. Run any skill as an MCP server, any MCP server as a CLI, and any API from your terminal.

ai api-client automation cli developer-tools graphql mcp mcp-server model-context-protocol openapi rust security skills

Last synced: 08 Apr 2026

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

Validated F5 Distributed Cloud OpenAPI specifications

api f5xc openapi

Last synced: 16 May 2026

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/iyxan23/openapi-example

🛜 an example of API-first development with OpenAPI. with an ExpressJS backend, and Flutter frontend.

expressjs flutter monorepo openapi

Last synced: 16 Apr 2026

https://github.com/thanadolps/swarch_rest

Simple REST API Assignment as part of Chulalongkorn 2110521 Software Architecture course.

openapi poem rest-api rust

Last synced: 30 Apr 2026

https://github.com/ivan-yuldashev/hono-quickstart

An opinionated, production-focused starter for Hono. This template provides an end-to-end type-safe stack, featuring a Modular Architecture, Context-Aware Transactions, Drizzle ORM, PostgreSQL, Zod, and automated OpenAPI documentation.

drizzle hono openapi postgres zod-validation

Last synced: 30 Apr 2026

https://github.com/soenneker/soenneker.rebrickable.client

A .NET thread-safe singleton HttpClient for Rebrickable

client csharp dotnet http httpclient openapi rebrickable rebrickablehttpclient

Last synced: 10 Jun 2026

https://github.com/toshiemon18/schemar

Design and generate OpenAPI schema with Ruby models

openapi openapi3 webapi

Last synced: 30 Apr 2026

https://github.com/soenneker/soenneker.openapi.fixer

A utility that fixes problem OpenApi specs being converted into clients

client csharp diagnostic diagnostics dotnet fix fixer openapi openapifixer util utility

Last synced: 01 Jun 2026

https://github.com/apisyouwonthate/openapinotswagger.com

Next.js repo for openapinotswagger.com

api api-definition api-design apis openapi swagger

Last synced: 30 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/dougborg/stocktrim-openapi-client

Production-ready Python client for the StockTrim Inventory Management API with transport-layer resilience

client mcp openapi stocktrim

Last synced: 05 Mar 2026

https://github.com/soenneker/soenneker.github.filestore

A high-level file system utility for GitHub repositories, built on the GitHub OpenAPI client. Supports reading, writing, deleting, listing, and checking file existence via the GitHub Contents API.

api blob client content crud csharp dotnet file filestore filesystem github githubfilestore openapi repository rest sdk soenneker storage store util

Last synced: 02 Jun 2026

https://github.com/soenneker/soenneker.github.openapiclient

A GitHub .NET client generated from their OpenAPI schema, updated daily

api client csharp dotnet generation github githubopenapiclient kiota open openapi openapiclient runner

Last synced: 01 Apr 2026

https://github.com/soldarlabs/oapi-litegraph-nodegen

Generate dynamic and callable Litegraph nodes from OpenAPI specifications, enabling seamless API integration in a visual programming environment.

apis graphs litegraph openapi openapi-generator visualisation

Last synced: 01 May 2026

https://github.com/yinchi/openapi-cli

CLI for working with APIs using the OpenAPI specifications

openapi openapi-cli python-click

Last synced: 01 May 2026

https://github.com/webitel/webitel-openapi-client-go

Webitel OpenAPI Client for Go

go openapi swagger webitel

Last synced: 01 May 2026

https://github.com/straylittlepunk/deepl

Openapi auto generated deepl api client

deepl openapi rust

Last synced: 01 May 2026

https://github.com/alexcheng1982/llm-openapi-function-spring-ai-generator

Generate Spring AI functions from OpenAPI spec

ai llm openapi openapi-generator spring spring-ai

Last synced: 01 May 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/lifeiscontent/openapi-sdk

Generate Typesafe SDK from OpenAPI spec

openapi sdk typescript

Last synced: 01 May 2026

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.

benchmark chatbot cline ide llm ollama openapi plugin windsurf

Last synced: 01 Apr 2026

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

a simple example of rust api

axum openapi rust swagger swagger-ui

Last synced: 18 Apr 2026

https://github.com/murilobeltrame/springjerseydemoapi

Demo API built with Spring and Jersey

java jersey openapi spring-boot

Last synced: 16 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/michealroberts/o3-stack

Hono, OpenAPI & oRPC example backend API

hono honojs openapi openapi3 orpc

Last synced: 02 May 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/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.shippo.openapiclient

A .NET client generated from the Shippo OpenAPI schema, updated daily

api client csharp dotnet kiota openapi openapiclient shippo shippoopenapiclient

Last synced: 07 May 2026

https://github.com/sirerun/mint

mint is an open-source Go CLI that turns any OpenAPI 3.0/3.1 specification into a working Go MCP server.

ai ai-automation mcp mcp-server openapi openapi3

Last synced: 01 Apr 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/n8n-code/n8n-nodes-0x-cross-chain

Cross-chain API bridging assets across EVM, Solana, Tron, HyperCore with real-time quotes and status tracking.

0x-cross-chain api automation n8n n8n-community-node n8n-node openapi swagger workflow

Last synced: 14 Jun 2026

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

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

csharp dotnet generated httpclient httpclients notion notionopenapihttpclient openapi singleton

Last synced: 05 Jun 2026

https://github.com/n8n-code/n8n-nodes-ondo-finance

Ondo Finance institutional-grade tokenized real-world assets platform bridging traditional finance and DeFi protocols

api automation n8n n8n-community-node n8n-node ondo-finance openapi swagger workflow

Last synced: 14 Jun 2026

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

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

api csharp dotnet httpclient httpclients openapi openrouter openrouteropenapihttpclient singleton

Last synced: 07 Jun 2026

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

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

api csharp dotnet fastly fastlyopenapihttpclient httpclient httpclients openapi openapiclient singleton

Last synced: 04 Jul 2026

https://github.com/instantan/web

Build robust web applications with pure Go. No external dependencies, just the power of the standard library.

openapi openapi3 redoc scalar swagger typescript-generator

Last synced: 03 May 2026

https://github.com/vicradon/petstore

A modified version of the Petstore API offered by SwaggerHub

api javascript openapi

Last synced: 03 May 2026

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

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

api csharp dotnet httpclient httpclients openapi singleton unified unifiedopenapihttpclient

Last synced: 13 May 2026

https://github.com/spanpanel/span-panel-api

Python API client for SPAN Panel - provides async interface to control circuits, monitor power usage, and manage panel settings

api-client async home-assistant openapi pypi python span-panel

Last synced: 01 Apr 2026

https://github.com/w3labkr/ipynb-openapi

Example using openapi for jupyter.

jupyter jupyter-notebook openapi py python

Last synced: 16 Apr 2026

https://github.com/borolgs/axum-examples

Examples of using the Axum web framework

axum deno htmx openapi

Last synced: 03 May 2026

https://github.com/srinitude/effect-json-schema

Tiny Effect Schema adapter for Standard JSON Schema V1

effect json-schema openapi standard-schema typescript

Last synced: 09 Jun 2026

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.

cli data-dump http json league-of-legends openapi python reverse-engineering swagger tooling

Last synced: 03 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/corrreia/dev-mcp

Personal MCP gateway for combining MCP servers and OpenAPI APIs on Cloudflare Workers with Code Mode.

ai cloudflare codemode mcp openapi workers

Last synced: 14 Jun 2026

https://github.com/aahoughton/oav

HTTP-aware OpenAPI 3.0/3.1/3.2 validator with JSON Schema 2020-12 codegen compiler

json-schema json-schema-validator openapi openapi-validator openapi3 openapi31 typescript validator

Last synced: 06 Jun 2026

https://github.com/hyesungoh/cultural_heritage_administration_api

문화재청 open api 사용 with Python

openapi python3 textreader

Last synced: 04 May 2026

https://github.com/roxyapi/sdk-typescript

TypeScript SDK for RoxyAPI. Western astrology, Vedic kundli, tarot, numerology, horoscope, birth chart, I Ching, biorhythm, crystals, dream, and angel number APIs. One key, 10 domains, fully typed. AI agent and MCP ready.

ai-agents angel-numbers astrology-api biorhythm-api birth-chart-api crystals dream-interpretation horoscope-api i-ching-api kundli-api mcp-server model-context-protocol nodejs numerology-api openapi roxyapi spiritual-api tarot-api typescript-sdk vedic-astrology-api

Last synced: 16 May 2026

https://github.com/andyfrith/weather-api

Weather API is a high-performance, type-safe RESTful service designed for the modern web. Built using the Bun JavaScript runtime and the Hono framework

api hono openapi sentry testing types

Last synced: 03 Mar 2026

https://github.com/controlplane-com/types-ts

Control Plane TypeScript type definitions for type-safe API interactions

api-types controlplane npm-package openapi schema type-definitions types typescript

Last synced: 03 Mar 2026

https://github.com/dhslegen/disciplined-delivery-toolkit

Claude Code plugin: superpowers discipline + toB delivery governance — 5-station spine (need→contract→implement→verify→deliver), Iron Law file-fact enforcement, SSoT accountability, ROI reporting. Zero deps.

ai-engineering claude-code claude-code-plugin delivery governance openapi subagents superpowers tdd tob

Last synced: 15 Jun 2026

https://github.com/esn8der/tour-of-heroes-api

API en Java usando spring boot para el proyecto del tutotrial de angular Tour Of Heroes

java openapi spring-boot spring-framework swagger swagger-api swagger-ui

Last synced: 04 May 2026

https://github.com/k5ki/oapigen-poc

how to reuse the model for each endpoint

openapi

Last synced: 04 May 2026

https://github.com/maineffort/swaggerized-spring-petclinic

This is "swaggerized" version of the spring petclinic i.e. with OpenApi support

microservices-architecture openapi swagger

Last synced: 16 Apr 2026

https://github.com/daymade/microservices-management-platform

Service Catalog Demo is a microservice API management platform written using golang and vue, where users can manage services and versions through a frontend dashboard.

api commitzen docker docker-compose go-standard-project golang gorm grafana jaeger makefile metrics microservices openapi opentelemetry postgresql prometheus swagger tracing victoriametrics vue

Last synced: 02 Mar 2026

https://github.com/acunningham-ship-it/mcpforge

Auto-generate Model Context Protocol (MCP) servers from any API in seconds — works with Claude Desktop, Cursor, and any MCP-compatible AI tool

ai-tools claude code-generation developer-tools fastmcp llm mcp model-context-protocol ollama openapi

Last synced: 15 Jun 2026

https://github.com/p-fruck/rt-openapi

Deterministic OpenAPI spec generation for RequestTracker REST 2.0 API

openapi request-tracker rt

Last synced: 16 Jun 2026

https://github.com/rickyli79/egg-openapi-router

init `router` and connect `controller` by Openapi-doc. validate the request and response by Openapi-doc

egg egg-plugin eggplugin openapi route schema valid

Last synced: 05 May 2026

https://github.com/vaelixbank/vaelix-exchange

The Vaelix Exchange Open Source Platform

javascript nodemon openapi talwindcss typescript vite yarn

Last synced: 16 Apr 2026

https://github.com/bilal-fazlani/mockserver-openapi-scenario-extension

A MockServer expectation initializer that turns OpenAPI x-mockserver-scenarios extensions into executable MockServer expectations at startup.

mockserver openapi testing

Last synced: 16 Jun 2026

https://github.com/tarundattagondi/mcp-curate

Turn an OpenAPI/Swagger spec into a high-quality, curated MCP server — consolidates endpoints into clear tools and proves it with an eval harness.

ai-tools anthropic claude cli code-generation developer-tools eval llm mcp model-context-protocol openapi python swagger tool-calling

Last synced: 17 Jun 2026

https://github.com/chaimabnaicha/builderz4sae8frontend

Builderz is a web-based construction management platform designed to enhance collaboration between engineers, project managers, HR, employees, and clients. From the initial site planning to the final building delivery, our solution offers advanced features to ensure efficient tracking and seamless communication among all stakeholders.

angular authentication bootstrap component html-css-javascript lazy-loading openapi

Last synced: 27 Feb 2026

https://github.com/somospragma/qa-backend-postman-collection-builder-from-api-contract

Proyecto que genera una colección de prueba para Postman con sus variables de entorno apartir un contrato json de la API (Swagger)

contratos-api openapi postman python swagger

Last synced: 12 Feb 2026

https://github.com/samgutentag/pyaudius

A Python Implentation of the Audius API

audius music openapi python

Last synced: 11 Feb 2026

https://github.com/letehaha/walutomat-sdk

Unofficial SDK clients for the Walutomat API v2.0.0. Walutomat is a Polish peer-to-peer currency exchange platform operated by Currency One. This SDK provides typed clients for their REST API, covering wallet management, transfers, direct FX, and the P2P market order book.

javascript open-source openapi sdk typescript walutomat

Last synced: 01 Mar 2026

https://github.com/scrntprcrz/openapi-sankeylizer

Visualize your OpenAPI specs as Sankey diagrams. Upload, explore request/response flows, and export as PNG.

api-visualization google-charts openapi react sankey-diagram swagger web-worker

Last synced: 05 May 2026

https://github.com/marc0franc0/exchangeratesapi

API REST que brinda información actualizada sobre las tasas de cambio de USD y otras monedas en Argentina. También sobre el valor de acciones en USD.

java openapi spring-boot swagger-ui

Last synced: 05 May 2026

https://github.com/huakunshen/ossinsight-client

A OSSInsight TypeScript SDK generated from the official public API openapi schema.

client openapi ossinsight sdk typescript

Last synced: 11 Feb 2026

https://github.com/gopad/gopad-ruby

Gopad: SDK for Ruby

etherpad gopad openapi ruby sdk

Last synced: 16 Feb 2026

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

Public API to interact with the owle.bot app

api javascript nodejs open-source openapi typescript

Last synced: 06 May 2026

https://github.com/sebavidal10/le-chat-openai

POC de integración de openai

gpt35 openapi react

Last synced: 28 Jun 2026

https://github.com/mikeralphson/openapi-diff

Mirror of Atlassian's OpenAPI Diff (from bitbucket.org)

api diff json openapi openapi3 swagger yaml

Last synced: 16 Apr 2026