agentOps · ai

LangChain

4 production projects and 1 rule set built with LangChain.

Production projects

Multi-Agent Interactive AI Classroom Classic OpenMAIC Built as a Next.js app around a set of npm-published packages (slide DSL, generation, renderer, editor, importer, storage). The multi-agent LangGraph pipeline, the slide format and persistence can each be reused or swapped, and heavy video rendering runs in a separate container.
Fair-Code Workflow Automation & AI Integrator Hybrid n8n n8n splits its execution engine, workflow schema, and integration nodes into separate TypeORM- and Express-backed packages so the automation runtime, node library, and Vue editor can be built, tested, and versioned independently inside one Turborepo-orchestrated pnpm workspace.
LLM Application Framework & Agent Orchestrator AI-agent LangChain The current langchain package is a thin agent-building layer on top of LangGraph, with the older chain-based API kept separately as langchain-classic, and every model provider ships as its own versioned package so integrations can release independently of the core library.
Self-Hosted AI Interface & Agent Hub AI-agent Open WebUI A SvelteKit-plus-FastAPI split lets one Docker image serve the UI and API together, while SQLAlchemy over SQLite or PostgreSQL and a swappable vector-store layer let self-hosters scale from a laptop to a multi-worker Redis-backed deployment without changing code.

Often used with LangChain

Every rule ships as files

AGENTS.md rules and agent skills with LangChain

langgraph-python-fastapi/AGENTS.mdLangGraph + Python + FastAPI (Agentic AI Workflows)Production architecture for autonomous multi-agent systems, LangGraph cyclic state graphs, Pydantic v2 structured tool calling, and Chroma/Qdrant vector stores. advanced

Questions about LangChain

How many production projects use LangChain?

4 verified production projects in the STACK IT FAST directory use LangChain, each with a full architecture breakdown.

What is LangChain most often used with?

Across projects in the directory, LangChain is most commonly paired with TypeScript, PostgreSQL, Docker.

Is there an AGENTS.md rule or Claude Code skill for LangChain?

Yes — LangGraph + Python + FastAPI (Agentic AI Workflows) includes a full AGENTS.md, CLAUDE.md, Cursor .mdc rule set and an installable SKILL.md covering LangChain.