Source: https://seerepo.com/uses/langchain
Markdown source: https://seerepo.com/uses/langchain.md
Description: 11 public repos that SeeRepo read use LangChain. It's used most with langchain-openai, cryptography, and langchain-anthropic.

# Open source repos that use LangChain

11 public repos that SeeRepo read use LangChain. It's used most with langchain-openai, cryptography, and langchain-anthropic.

## Used most with

- langchain-openai: 5 repos
- cryptography: 4 repos
- langchain-anthropic: 4 repos
- LangGraph: 4 repos
- FastAPI: 3 repos
- OpenAI: 3 repos
- uvicorn: 3 repos
- AIOHTTP: 3 repos

## The repos, by stars

1. [n8n-io/n8n](https://seerepo.com/r/n8n-io/n8n): TypeScript · 209,517 stars · 14.4% signed by AI — Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
2. [langflow-ai/langflow](https://seerepo.com/r/langflow-ai/langflow): Python · 156,316 stars · 1.5% signed by AI — Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
3. [langchain-ai/langchain](https://seerepo.com/r/langchain-ai/langchain): Python · 148,995 stars · 0.3% signed by AI — The agent engineering platform.
4. [TauricResearch/TradingAgents](https://seerepo.com/r/TauricResearch/TradingAgents): Python · 120,536 stars · 2.1% signed by AI — TradingAgents: Multi-Agents LLM Financial Trading Framework
5. [JuliusBrussee/caveman](https://seerepo.com/r/JuliusBrussee/caveman): Go · 117,395 stars · 74.4% signed by AI — 🪨 why use many token when few token do trick. Viral skill + proxy for coding agents that cuts 65% of tokens by talking like a caveman.
6. [PaddlePaddle/PaddleOCR](https://seerepo.com/r/PaddlePaddle/PaddleOCR): C++ · 92,256 stars · 0.3% signed by AI — Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.
7. [bytedance/deer-flow](https://seerepo.com/r/bytedance/deer-flow): Python · 84,984 stars · 12.7% signed by AI — An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.
8. [NVIDIA/SkillSpector](https://seerepo.com/r/NVIDIA/SkillSpector): Python · 24,278 stars · 19.5% signed by AI — Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, security risks, prompt injection, data exfiltration, and supply-chain risks in Claude Code, Codex, and MCP skills before you install them.
9. [comet-ml/opik](https://seerepo.com/r/comet-ml/opik): Python · 23,166 stars · 19.7% signed by AI — Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
10. [1Panel-dev/MaxKB](https://seerepo.com/r/1Panel-dev/MaxKB): Python · 23,112 stars — 🔥 MaxKB 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。
11. [micro/go-micro](https://seerepo.com/r/micro/go-micro): Go · 23,083 stars · 20.5% signed by AI — A framework for agents, tools and services

## Frequently asked questions

### What is the most popular open source repo that uses LangChain?

n8n-io/n8n, with 209,517 stars on GitHub.

The proof: [n8n-io/n8n on GitHub](https://github.com/n8n-io/n8n)

### What other technologies is LangChain used with?

With langchain-openai (5), cryptography (4), langchain-anthropic (4), LangGraph (4), and FastAPI (3), out of the 11 repos that use it.

### What languages are the repos that use LangChain written in?

Python (7), Go (2), C++ (1), and TypeScript (1).

### How many repos that use LangChain have commits signed by AI?

10 of the 11; the most, JuliusBrussee/caveman, with 74.4% of its commits.

The proof: [the commits each tool signed in JuliusBrussee/caveman](https://seerepo.com/r/JuliusBrussee/caveman/ai)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.