@n8n/n8n-nodes-langchain.code
14 workflows using this node.
n8n-n8n-nodes-langchain-code 
Compare LLM token costs across 350+ models with OpenRouter
This n8n template lets you run prompts against 350+ LLM models and see exactly what each request costs with real time...
Control AI agent tool access with Port RBAC and Slack mentions
RBAC for AI agents with n8n and Port This workflow implements role based access control for AI agent tools using Port...
Newsletter summarization & briefing with Gmail, AI, Google Sheets & Email
Your inbox is overflowing with daily newsletters: Public Affairs, ESG, Legal, Finance, you name it. You want to stay...
Automated document compliance validation with AI and vector database
Description This workflow automates compliance validation between a policy/procedure and a corresponding uploaded doc...
Track OpenAI token usage and AI agent metrics with Google Sheets dashboard
What it does Captures token usage and cost from your AI Agent/LLM. Logs model, tokens, cost, tool use, and conversati...
🤖 Build resilient AI workflows with automatic GPT and Gemini failover chain
This workflow contains community nodes that are only compatible with the self hosted version of n8n. How it works Thi...
Monitor AI chat interactions with Gemini 2.5 and Langfuse tracing
This workflow contains community nodes that are only compatible with the self hosted version of n8n. How it works Thi...
Access control for AI agents (RBAC) using Airtable and Telegram
Purpose This workflow allows granular control over the access to tools connected to AI Agents (including Multi Agent...
Dynamically switch between LLMs for AI agents using LangChain code
Dynamically switch between LLMs for AI Agents using LangChain Code Purpose This example workflow demonstrates a way t...
Track LLM token costs per customer using the Langchain code node
Note: This template only works for self hosted n8n. This n8n te...
Build custom AI agent with LangChain & Gemini (self-hosted)
This workflow leverages the LangChain code node to implement a fully customizable conversational agent. Ideal for use...
🤖 AI powered RAG chatbot for your docs + Google Drive + Gemini + Qdrant
🤖 AI Powered RAG Chatbot with Google Drive Integration This workflow creates a powerful RAG (Retrieval Augmented Gen...
Use any LangChain module in n8n (with the LangChain code node)
LangChain is a framework for building AI functionality that users large language models. By leveraging the functional...
Custom LangChain agent written in JavaScript
This workflow has multiple functionalities. It starts with a manual trigger, "When clicking 'Execute Workflow'", that...