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/dacr/counters

Just count things with API

api openapi pekko pekko-http

Last synced: 26 Feb 2026

https://github.com/gpbultz/apidocandmock

🔧OpenApi extensions and Mocking objects using Bogus

api bogus minimalapi mocking net8 openapi reflection

Last synced: 08 Feb 2026

https://github.com/layoric/exampleopenaiplugin

WIP Example OpenAi Plugin support for ServiceStack

openai openapi servicestack servicestack-plugin

Last synced: 07 May 2026

https://github.com/quickwrench/quickwrench-api

QuickWrench backend API written using Django ⚡

backend django django-rest-framework openapi python python3 python312 quickwrench

Last synced: 13 Apr 2026

https://github.com/ztrehagem/openapi-to-fastify-schema

Generate schema objects for Fastify from OpenAPI documents

fastify fastify-library openapi openapi-codegen schema-first

Last synced: 07 May 2026

https://github.com/ubill-ge/sdk-php

PHP SDK for working with the UBill API

api openapi openapi-generator openapitools php rest sdk sms ubill

Last synced: 17 Mar 2026

https://github.com/mizcausevic-dev/experimentation_insights_kpi

TypeScript platform for experiment lift analysis, rollout decisioning, KPI interpretation, and growth-oriented experimentation workflows.

ab-testing backend experimentation growth kpi nodejs openapi typescript

Last synced: 01 Jun 2026

https://github.com/esn8der/todo-app

Una API simple de Tareas Pendientes (ToDo) desarrollada con Spring Framework.

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

Last synced: 09 Feb 2026

https://github.com/psmyrdek/express-openapi-typescript

Example app with express, typescript and openapi-ts

express openapi typescript

Last synced: 12 Apr 2026

https://github.com/mizcausevic-dev/signal-orchestration-lab

Python + FastAPI orchestration backend for dependency-aware signal routing, escalation sequencing, and cross-functional response planning.

backend openapi pandas python signal-routing

Last synced: 01 Jun 2026

https://github.com/miensoap/kishelper

Features for utilizing the KIS Open API

java kis library openapi stock stock-prices

Last synced: 09 Feb 2026

https://github.com/hurricanemark/aspnetwebapi

aspnet core webapi & openapi swaggerui

aspnet-core c-sharp dotnet-cli openapi swagger swagger-ui vscode

Last synced: 22 Jun 2026

https://github.com/dreamquality/swagger-coverage-cli

A Node.js CLI tool to measure test coverage of Swagger/OpenAPI specs using Postman collections.

openapi postman-reporter reporter reporting swagger

Last synced: 09 Feb 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/lifeiscontent/openapi-sdk

Generate Typesafe SDK from OpenAPI spec

openapi sdk typescript

Last synced: 01 May 2026

https://github.com/90dy/ts-openapis

Typescript pre-generated OpenAPIs clients

codegen jsr openapi typescript

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/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/vicradon/petstore

A modified version of the Petstore API offered by SwaggerHub

api javascript openapi

Last synced: 03 May 2026

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.

agent-framework ai-tools design driver fastapi function-calling integration llm llmos llms mcp mcs openapi protocol

Last synced: 04 May 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/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/developerkunal/openmorph

OpenMorph: Modern CLI & TUI for safe, interactive OpenAPI vendor extension key transforms with colorized diffs, dry-run, and config merging.

api-tools automation cli-tool developer devops devops-tools fern golang interactive-cli json openapi pagination schema-validation speakeasy transformation tui vendor-extensions yaml

Last synced: 05 May 2026

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.

java jdbc jwt-authentication kafka openapi oracle-database redis swagger-api

Last synced: 05 May 2026

https://github.com/serafin-labs/open-api

Open Api 3 typescript types definition

json-schema openapi typescript typing

Last synced: 05 May 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/soenneker/soenneker.together.openapiclient

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

client csharp dotnet kiota openapi openapiclient together togetheropenapiclient

Last synced: 06 May 2026

https://github.com/wacko1805/victorian-covid-stats

An open API of COVID statistics in Victoria, Australia. The data is ripped from coronavirus.vic.gov.au

api aussie australia australian corona coronavirus covid-19 covid-19-data covid-api covid-virus covid19-data json open-api open-source openapi php php-api simple-html-dom victoria

Last synced: 07 May 2026

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

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

api client csharp dotnet fastly fastlyopenapiclient kiota openapi openapiclient

Last synced: 07 May 2026

https://github.com/openapi-processor/openapi-processor-json

converts an openapi yaml file to an openapi.json file

json openapi openapi-generator openapi-processor openapi-processor-json

Last synced: 07 May 2026

https://github.com/romanow/aggregator-by-tags

OpenAPI aggregator by Tags

aggregator merge-openapi openapi

Last synced: 08 May 2026

https://github.com/bolshchikov/quiver-mcp

MCP server for Quiver API

api mcp openapi quiver

Last synced: 08 May 2026

https://github.com/skuong/rclone-rc-api-docs

Easy-to-read Rclone RC API docs using Scalar

api docs openapi rclone scalar

Last synced: 10 Jun 2026

https://github.com/mrtaz77/pantrypal

PantryPal is a pantry management app to keep track of pantry items by add, remove or update quantities using Next.js, MaterialUI and Firebase

firebase material-ui meta-llama-3-1-8b-instruct nextjs openapi

Last synced: 09 May 2026

https://github.com/mermade/api-registry

Own-label API registry which powers APIs.guru

api apiblueprint apis openapi postman postman-collection raml registry repository

Last synced: 09 May 2026

https://github.com/abdallahsaber065/openapi-tester-frontend

A clean, user-friendly frontend application for testing any OpenAPI-compliant API dynamically. This tool loads your API specification from OpenAPI JSON files or URLs and provides an intuitive interface for testing all endpoints without needing external tools like Postman.

api api-testing fastapi openapi rest-api restful-api test

Last synced: 09 May 2026

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

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

client csharp dotnet generated kiota openapi openapiclient openaq openaqopenapiclient

Last synced: 09 May 2026

https://github.com/ankitboghra/openapi-watchgod-merger

Merge OpenAPI and Watchgod responses to track latest status of a deposit/withdraw transaction on Ethereum Chain and Polygon Chain.

ethereum openapi polygon watchgod web3

Last synced: 09 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/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/foospidy/postman-to-openapi-docker

Run postman-to-openapi from a docker container

openapi postman postman-collection

Last synced: 14 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/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/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/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/opastorello/unifi-api-docs

Espelho automatico e versionado da documentacao oficial da API UniFi (Site Manager, Network, Protect, Mobility) - OpenAPI + Markdown, atualizado diariamente por CI

api api-docs api-documentation cloud-connector mcp openapi rest-api site-manager ubiquiti unifi unifi-network unifi-protect

Last synced: 19 Jun 2026

https://github.com/glebmish/intervals-icu-cli

Command-line client for the intervals.icu training API, built for AI-agent use. 148 operations.

ai-agents cli cycling golang intervals-icu openapi running

Last synced: 24 Jun 2026

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

tru.id client, generated from the OpenAPI spec.

openapi rust truid

Last synced: 25 Jun 2026

https://github.com/subzeroid/hikerapi-mcp

MCP server for HikerAPI — 105+ Instagram API tools auto-generated from the OpenAPI spec. Use from Claude Code, Claude Desktop, Cursor, OpenAI Codex, Zed, Windsurf.

ai-tools auto-generated claude codex cursor data-api hikerapi instagram instagram-api mcp mcp-server model-context-protocol openapi social-media

Last synced: 26 Jun 2026

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

POC de integración de openai

gpt35 openapi react

Last synced: 28 Jun 2026

https://github.com/torand/openapi2java

Maven plugin to generate Java models and REST clients from an OpenAPI specification

code-generation contract-first java kotlin maven-plugin openapi openapi-specification

Last synced: 28 Feb 2026

https://github.com/apimatic/skills

AI agent skills for APIMatic. Build, configure, and publish developer portals, generate SDKs, and optimize OpenAPI specs from Claude Code, Cursor, and Codex.

agent-skills ai-agents api-docs developer-portal openapi skills

Last synced: 29 Jun 2026

https://github.com/cubicrootxyz/workflows

Collection of commonly used GitHub workflows

automation build cd ci docker golang image jobs lint openapi renovate reusable swagger test workflows

Last synced: 14 Feb 2026

https://github.com/jeffhuen/tiger_stripe

A Stripe library for Elixir — typed SDK, client, and webhooks generated from the official OpenAPI spec.

elixir hex-package openapi payments phoenix sdk stripe stripe-api stripe-connect webhooks

Last synced: 17 Feb 2026

https://github.com/mathrix-education/openapi-processor

Template Engine for YAML-based OpenAPI specifications.

openapi php

Last synced: 15 Feb 2026

https://github.com/seabed-labs/drip-client

Generated API Clients for the Drip Backend

golang openapi solana swagger typescript

Last synced: 16 Apr 2026

https://github.com/himenon/docker-typescript-openapi

TypeScript implementations generated from Docker OpenAPI

docker nodejs openapi swagger typescript

Last synced: 16 Apr 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/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/soenneker/soenneker.nws.openapiclient

A National Weather Service (NWS) .NET client generated from their OpenAPI schema, updated daily

client csharp dotnet kiota national nws nwsopenapiclient openapi openapiclient service weather

Last synced: 05 Jun 2026

https://github.com/goafabric/callee-service-quarkus

⚛️Very tiny QUARKUS Service without Persistence - Also includes a native image build

aspect native oidc openapi prometheus quarkus rest-api security

Last synced: 04 Mar 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/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/davidsteiner/orator

Rust server stub generation from OpenAPI 3.1 specs

axum codegen openapi openapi3 rust

Last synced: 07 Apr 2026

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

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

client cloudflare cloudflareopenapiclient csharp dotnet generated openapi openapiclient spec util

Last synced: 13 May 2026

https://github.com/soenneker/soenneker.resend.openapi.suite

A comprehensive suite of utility libraries for Resend's OpenApi operations

csharp dotnet openapi resend resendopenapisuite suite util

Last synced: 06 Jun 2026

https://github.com/aporthq/aport-integrations

🛡️ Community-built integrations, SDKs, and tools for APort - the neutral trust rail for AI agents. Join Hacktoberfest 2025!

agent-identity agent-security ai ai-agents crewai django express fastapi hacktoberfest hacktoberfest-accepted integrations langchain middleware nextjs nodejs openapi policy-enforcement sdk shopify stripe

Last synced: 02 Apr 2026

https://github.com/gah-code/ai-prompt-bootcamp

Learning practical coding skills for working professionally with AI

agentic-coding llmops openapi prompt-engineering prompt-learning

Last synced: 17 Apr 2026

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

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

csharp dotnet generated gitlab gitlabopenapihttpclient httpclient httpclients openapi singleton

Last synced: 13 May 2026

https://github.com/AlexDemure/gadfastopenapi

Customize and override OpenAPI schema details in FastAPI with ease

fastapi fastapi-extension openapi openapi-codegen

Last synced: 17 Apr 2026

https://github.com/ivan-montes/springschoolapirest

Welcome to my Api Rest with Spring Framework. :fire::rainbow: A small work simulating a quite fake school structure.

docker h2-database java junit maven mockito openapi sonarqube spring spring-rest spring-rest-api swagger

Last synced: 02 Apr 2026

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

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

csharp dotnet httpclient httpclients national nws openapi openapihttpclient service singleton weather

Last synced: 02 Apr 2026

https://github.com/pchchv/strava-cycling-tool

Project that uses the Strava API to download and analyze cycling training data

cycling cycling-workouts openapi python sports-stats strava

Last synced: 17 Apr 2026

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

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

api client csharp dotnet kiota openapi openapiclient persona personaopenapiclient

Last synced: 20 May 2026

https://github.com/yoshinariyamanaka/openapi-with-express

OpenAPI-with-Express implemented in TypeScript

expressjs openapi openapi3 restapi typescript

Last synced: 10 May 2026

https://github.com/mustafaautomation/ai-testgen

AI-powered test case generator — transform PRDs, OpenAPI specs, and user stories into Playwright tests, API tests, and Gherkin features

ai anthropic cli code-generation gherkin llm openai openapi playwright qa-automation test-generation typescript

Last synced: 04 Apr 2026

https://github.com/dpritchett/helloextend-ruby-client

💎 Ruby HTTP API client gem for the extend.com warranty service API

api-client ecommerce extend http openapi ruby swagger warranties

Last synced: 18 Apr 2026

https://github.com/mimikos-io/mimikos

A deterministic, OpenAPI-driven mock server that generates realistic API responses with zero manual config.

api-mocking api-testing deterministic developer-tools golang mock-server openapi openapi3 schema-driven test-doubles zero-config

Last synced: 19 Apr 2026