very good whiteboard infinite canvas SDK

An open source payments switch written in Rust to make payments fast, reliable and affordable

微信开发 Java SDK ，支持包括微信支付，开放平台，小程序，企业微信，视频号，公众号等的后端开发

Integrate cutting-edge LLM technology quickly and easily into your apps

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

A framework for building Mobile cross-platform UI

Open-source feature management platform

🧩 The Browser Extension Framework

Build AI-native spreadsheets. Univer is a full-stack framework for creating and editing spreadsheets on both web and server. With Univer Platform, Univer Spreadsheets is driven directly through natural language.

Simple and Fast Multimedia Library

The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.

📦 一个 PHP 微信 SDK

微信全平台 .NET SDK， Senparc.Weixin for C#，支持 .NET Framework 及 .NET Core、.NET 10.0。已支持微信公众号、小程序、小游戏、微信支付、企业微信/企业号、开放平台、JSSDK、微信周边等全平台。 WeChat SDK for C#.

Official Sentry SDKs for JavaScript

RealSense SDK

The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to and interact with services.

Bot Framework provides the most comprehensive experience for building conversation applications.

Run frontier LLMs and VLMs with day-0 model support across GPU, NPU, and CPU, with comprehensive runtime coverage for PC (Python/C++), mobile (Android & iOS), and Linux/IoT (Arm64 & x86 Docker). Supporting OpenAI GPT-OSS, IBM Granite-4, Qwen-3-VL, Gemma-3n, Ministral-3, and more.

A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

The all-batteries-included GitHub SDK for Browsers, Node.js, and Deno.

SDK for building Kubernetes applications. Provides high level APIs, useful abstractions, and project scaffolding.

Qiskit is an open-source SDK for working with quantum computers at the level of extended quantum circuits, operators, and primitives.

An open-source, code-first Go toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

OpenVR SDK

Open-source context retrieval layer for AI agents

SolidStart, the Solid app framework

⚡️ OpenAI PHP is a supercharged community-maintained PHP API client that allows you to interact with OpenAI API.

Cross-platform chatbot framework made with love

A programming language for the cloud ☁️ A unified programming model, combining infrastructure and runtime code into one language ⚡

Flutter Version Management: A simple CLI to manage Flutter SDK versions.