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Data / Repositories / LangChain

LangChain repositories on GitHub: 27 ranked by stars

27 public repositories tagged LangChain are on GitHub, with 304,799 stars between them; 21 had a push in the last 30 days. Most are written in Python (15), TypeScript (5), Rust (2). The most starred: headroomlabs-ai/headroom (75,347), BerriAI/litellm (61,238), langfuse/langfuse (35,820).

SpecStream is the live web data engine for teams and agents. It reads open-source repositories on GitHub and keeps what it reads, and this page groups that reading by topic. Ask for the repositories you track by topic, language, license or activity, and new ones and changes arrive in your sheet, CRM, Slack or agent.

Every repository, most starred first

RepositoryWhat it isLanguageStarsForksLicenseLast pushRead
headroomlabs-ai/headroomCompress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP…Python75,3475,847Apache-2.0Oct 13Oct 14
BerriAI/litellmThe fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock…Python61,23812,329Oct 14Oct 14
langfuse/langfuseOpen source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.TypeScript35,8203,987Oct 14Oct 14
1Panel-dev/MaxKBMaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。Python22,9723,195GPL-3.0Oct 14Oct 14
comet-ml/opikDebug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.Python22,5971,858Apache-2.0Oct 14Oct 14
Portkey-AI/gatewayA blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API.TypeScript13,1881,346MITMay 25Oct 14
StarTrail-org/LEANN[MLsys2026 Best Paper]: RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.Python13,0271,184MITOct 14Oct 14
Arize-ai/phoenixAI Observability & EvaluationPython11,8341,203Oct 14Oct 14
EmbraceAGI/awesome-chatgpt-zhChatGPT 中文指南,ChatGPT 中文调教指南,指令指南,应用开发指南,精选资源清单,更好的使用 chatGPT 让你的生产力 up up up!Python11,750977MITAug 30Oct 14
thesysdev/openuiThe Open Standard for Generative UITypeScript10,910734MITOct 14Oct 14
kyrolabs/awesome-langchainAwesome list of tools and projects with the awesome LangChain framework9,562966CC0-1.0Oct 9Oct 11
kyegomez/swarmsThe Enterprise-Grade Multi-Agent Orchestration Framework.Python7,2551,042Apache-2.0Oct 14Oct 14
caramaschiHG/awesome-ai-agents-2026The most comprehensive list of AI agents, frameworks & tools in 2026. 300+ resources · 20+ categories · Updated monthly.1,942701Jun 10Oct 14
zi-yue-1129/DATAGENDATAGEN: AI-driven multi-agent research assistant automating hypothesis generation, data analysis, and report writing.Python1,809254MITOct 14Oct 14
kaushikb11/awesome-llm-agentsA curated list of awesome LLM agents frameworks.Python1,604369CC0-1.0Oct 4Oct 11
Abraxas-365/langchain-rustLangChain for Rust, the easiest way to write LLM-based programs in RustRust1,349174MITOct 8Oct 11
curiousily/AI-BootcampSelf-paced bootcamp on Generative AI. Tutorials on ML fundamentals, Ollama, LLMs, RAGs, LangChain, LangGraph, Fine-tuning, DSPy & AI Agents (CrewAI), (Using ChatGPT, gpt-oss…Jupyter Notebook954295MITOct 11Oct 14
zamalali/DeepGitDeep research agent to help you find the best GitHub repositories !Python91897MITAug 30Oct 14
grll/mcpadaptUnlock 650+ MCP servers tools in your favorite agentic framework.Python42658MITOct 24, 2025Oct 14
major7apps/pensyveUniversal memory runtime for AI agentsRust9616Oct 8Oct 14
jgouviergmail/LIA-AssistantSmart multi-agent conversational assistant with LangGraph orchestration, Human-in-the-Loop, enterprise-grade observability, and full i18n support (6 languages)Python7311Oct 13Oct 14
PSPDFKit/nutrient-dws-mcp-serverA Model Context Protocol (MCP) server implementation that integrates with the Nutrient Document Web Service (DWS) Processor API, providing powerful PDF processing capabilities for…TypeScript716MITAug 28Oct 14
mishrasanjeev/grantexgrantex is the identity, authorization, and audit infrastructure for AI agents — the "OAuth moment" for the agentic internet. We provide a universal SDK and cloud service that…TypeScript339Oct 13Oct 14
XAIHT/TlamatiniTlamatini is a self-hosted AI developer assistant for local or cloud LLMs: hybrid RAG (FAISS+BM25) over your codebase, a 100+ tool Multi-Turn engine, an 86-agent visual workflow…Python151MITOct 14Oct 14
sachinshelke/ToolsConnectorOpen-source Python library for 73 API connectors — Gmail, Slack, GitHub, Stripe, OpenAI, Anthropic & more. MCP server, OpenAI function calling, Anthropic tool use. 1,519 actions…Python54Apache-2.0Sep 25Oct 14
negm17111995/mcp-serverRemote MCP server for hotel and flight search on MAQAMI (3M+ hotels). Search live rates, read hotel details, then send the customer a secure checkout link on book.maqami.co.…JavaScript20MITOct 7Oct 14
ProjAnvil/langchain-golangA community Go port of LangChainGo20MITOct 13Oct 14

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Read from GitHub by SpecStream between October 11, 2026 and October 14, 2026; each row shows the day its repository was read. Stars and pushes change every day, and the GitHub page is the current one. Forks and archived repositories are left out.