Browse free open source API Gateways and projects for Windows below. Use the toggles on the left to filter open source API Gateways by OS, license, language, programming language, and project status.
Development toolkit for Web Services and XML data bindings for C & C++
Opensource IDE For Exploring and Testing Api's
HTML, JavaScript, and CSS assets that generate Swagger documentation
The open-source, cross-platform API client for GraphQL
An API Gateway written in Go
Thunder Client is a lightweight Rest API Client Extension for VS Code
Open source API development ecosystem
OpenSource Postman Alternative. The developer-first API devtool
High-performance, stateless, declarative, API Gateway written in Go.
Create chat bots for Facebook Messenger, Slack, Amazon Alexa, etc.
Blazing fast, instant realtime GraphQL APIs on your DB
ThetaGang is an IBKR bot for collecting money
DigitalOcean Go API client
The cloud-native API gateway
.NET core API Gateway
Simple REST and HTTP API Client for .NET
Serverless Python
APIPark is the #1 open-source AI Gateway and Developer Portal
A light-weight REST API development framework for ASP.Net 6
Develop and test your cloud apps offline
OpenAI PHP is a supercharged community-maintained PHP API client
Access GameLift resources and integrate GameLift into your Unity game
OpenAPI based HTTP Client code generator
OpenAPI Generator allows generation of API client libraries
Run Node.js web applications and APIs using existing frameworks