Best Open Source sdk Libraries

#1tldraw/tldraw

very good whiteboard infinite canvas SDK

#2juspay/hyperswitch

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

#3binarywang/WxJava

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

#4microsoft/semantic-kernel

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

#5OpenAPITools/openapi-generator

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

#6alibaba/weex

A framework for building Mobile cross-platform UI

#7JeffreySu/WeiXinMPSDK

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#.

#8realsenseai/librealsense

RealSense SDK

#9getsentry/sentry-javascript

Official Sentry SDKs for JavaScript

#10quantumlib/Cirq

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

#11getsentry/sentry-python

The official Python SDK for Sentry.io

#12matrix-org/matrix-rust-sdk

Matrix Client-Server SDK for Rust

#13aliyun/aliyun-cli

Alibaba Cloud CLI

#14digital-asset/daml

The Daml smart contract language

#15OpenHands/software-agent-sdk

A clean, modular SDK for building AI agents with OpenHands V1.

#16api-bricks/api-bricks-sdk

SDKs for CoinAPI & FinFeedAPI

#17LnYo-Cly/ai4j

一款JavaSDK用于快速接入AI大模型应用，整合多平台大模型，如OpenAi、智谱Zhipu(ChatGLM)、深度求索DeepSeek、月之暗面Moonshot(Kimi)、腾讯混元Hunyuan、零一万物(01)等等，提供统一的输入输出(对齐OpenAi)消除差异化，优化函数调用(Tool Call)，优化RAG调用、支持向量数据库(Pinecone)、内置联网增强，并且支持JDK1.8，为用户提供快速整合AI的能力。

#18oomol-lab/open-connector

Open-source auth gateway connecting 1000+ SaaS providers to AI agents through SDK, CLI, MCP, HTTP, and OpenAPI.

#19LTplus-AG/ifc-lite

Parse, view, query, edit, and export IFC, IDS, BCF, pointclouds and more AEC stuff. In the browser, server or desktop.

#20aliyun/alibabacloud-python-sdk

The Alibaba Cloud V2.0 SDK for Python

#21aliyun/alibabacloud-sdk

#22ErisPulse/ErisPulse

Event-driven multi-platform bot framework with Dashboard, Docker, hot-reload & module marketplace | 事件驱动的多平台机器人框架 — 一次编写部署 QQ/Telegram/Kook/云湖/Matrix/邮件等 10+ 平台