@n8n/n8n-nodes-langchain.agent
3,546 workflows using this node.
What is the @n8n/n8n-nodes-langchain.agent node used for in n8n workflows?
@n8n/n8n-nodes-langchain.agent n8n workflows are automation templates that use the @n8n/n8n-nodes-langchain.agent node as part of a reusable workflow. Builders use these templates to inspect how the node connects with triggers, data transformation steps, app integrations, notifications, storage, or AI-powered actions inside n8n. Each workflow listing includes a title, summary, author attribution, categories, complexity level, source links when available, and a downloadable JSON file for review before import. Use this page to compare practical examples, understand the surrounding nodes, and choose a template that can be safely tested and adapted in your own n8n workspace.
n8n-n8n-nodes-langchain-agent 
Email drafting & news research assistant with OpenAI, Gmail, Tavily & Perplexity
AI Agent MCP for Email & News Research Build a chat first MCP powered research and outreach agent. This workflow lets...
Generate daily Pipedrive deal summaries with GPT-4o-mini
This workflow fetches deals and their notes from Pipedrive , cleans up stage IDs into names, aggregates the informati...
Blog writer & editor with Google Sheets memory (GPT-4)
Chat to write or reword a blog post. The workflow stores each result in Google Sheets and uses a sub workflow “Google...
Natural language Q&A for Pipedrive leads using GPT-4o-mini
Description Ask natural language questions about your Pipedrive leads . This workflow pulls live lead data from Piped...
Query Slack channel history with natural language using OpenAI
Chat with a Slack channel using AI. This workflow fetches the channel’s message history and lets you ask natural lang...
PDF proposal knowledge base with S3, OpenAI GPT-4o & Qdrant RAG agent
This template has a two part setup: 1. Ingest PDF files from S3, extract text, chunk, embed with OpenAI embeddings, a...
AI guest post generator with OpenAI & Google Sheets automation
About this Template This n8n template automates the process of writing SEO guest post content using OpenAI, based on...
Build a WhatsApp assistant with memory, Google Suite & multi-AI research and imaging
The " WhatsApp Productivity Assistant with Memory and AI Imaging " is a comprehensive n8n workflow that transforms yo...
Automated document compliance validation with AI and vector database
Description This workflow automates compliance validation between a policy/procedure and a corresponding uploaded doc...
Manage Appian tasks with Ollama Qwen LLM and Postgres memory
This workflow is a simple example of using n8n as an AI chat interface into Appian. It connects a local LLM, persiste...
Facebook comment AI moderator with Notion & Gemini
Problem Solved Eliminates the slow, inconsistent, and error prone process of manually replying to Facebook comments b...
Automate Client Onboarding with GPT-4o, GoHighLevel, Google Drive, Slack, and Gmail
Automate the complete client onboarding process using n8n , GoHighLevel , Slack , Google Drive , and Gmail . This wor...
Automate Client Onboarding with GPT-4o-mini, Asana, Slack, Google Drive and Gmail
Automate the complete client onboarding process for AI automation services using n8n , Asana , Slack , Google Drive ,...
Create a Witty Telegram Bot with AI-Powered Humor, Roasts & Stats using OpenRouter
GiggleGPTBot — Witty Telegram Bot with AI & Postgres Overview GiggleGPTBot is a witty Telegram bot built with n8n , O...
Calculate Embodied Carbon (CO2) for Revit/IFC Models using AI Classification
Estimate embodied carbon (CO2e) for grouped BIM/CAD elements. The workflow accepts an existing XLSX (grouped element...
Estimate Construction Costs from Revit/IFC Models with GPT-4 and Claude
Estimate material price and total cost for grouped BIM/CAD elements using an LLM driven analysis. The workflow accept...
Generate and store AI images with DALL-E and Azure Blob Storage
Beginner’s Tutorial: Manage Azure Storage Account Container & Blob with n8n [
Auto-categorize Gmail emails with AI and send prioritized Slack alerts
Who is this for? Teams using Gmail and Slack who want to streamline email handling. Customer support, sales, and oper...
Talk to your Google Sheets using ChatGPT-5
This n8n workflow template creates an intelligent data analysis chatbot that can answer questions about data stored i...
Extract Data from Invoices with OCR, Gemini AI, and Airtable
This workflow contains community nodes that are only compatible with the self hosted version of n8n. Extract Data fro...
Automate Morning Brew–style Reddit Digests and Publish to DEV using AI
This workflow contains community nodes that are only compatible with the self hosted version of n8n. Who’s it for Com...
AI Customer Support Chat for Web Hosting with Google Gemini & WHMCS
This n8n template implements a Customer Support Chat Agent for Web Hosting Companies with Google Gemini, Google Sheet...
Decodo SaaS pricing intelligence workflow (B2B pricing radar)
SaaS Pricing Brief Generator (Decodo → LLM → Google Docs → PDF → Slack) Try Decodo — Web Scraping & Data API (Coupon:...
Smart Gmail auto-replies while out of office with AI
Who is this for? If you're going on vacation or away from work and want your Gmail to respond to emails intelligently...