Browse 6,328 n8n workflow templates in the Langchain category. These ready-to-use automations connect apps and services with n8n — no coding required. Click any workflow to explore its nodes and import it directly into n8n.

6,328 workflows in Langchain
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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 accepts an existing XLSX (from your model) or, if missing, can trigger a local RvtExport ...
1
Built by Artem Boiko Artem Boiko
Aug 20, 2025
Generate and Store AI Images with DALL-E and Azure Blob Storage
Beginner’s Tutorial: Manage Azure Storage Account Container & Blob with n8n > This beginner-friendly n8n workflow shows you how to generate AI images using OpenAI, store them in Azure Blob Stora ...
0
Built by Trung Tran Trung Tran
Aug 20, 2025
Build a self-updating RAG system with OpenAI, Qdrant and Google Drive
This workflow implements a Retrieval-Augmented Generation (RAG) system that integrates Google Drive and Qdrant. This setup creates a powerful, self-updating knowledge base that provides accurate, con ...
1,412
Aug 20, 2025
Automated Expense Tracking from Emails & Telegram with Gemini AI & Google Sheets
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. This n8n template automatically parses bank transaction emails (HDFC, Indian Bank, Indian Overseas ...
0
Built by Alex Alex
Aug 20, 2025
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 operations teams that want emails sorted by topic and priority automatically. Anyone ti ...
16
Aug 20, 2025
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 in Google Sheets using OpenAI's GPT-5 Mini model. The system automatically analyzes ...
15,162
Aug 20, 2025
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 from Invoices with OCR, Gemini AI, and Airtable This template automates the pro ...
0
Built by Vinay Vinay
Aug 20, 2025
Smart Gmail Labeling Automation with Text Classifier and GPT-5
What this workflow does This workflow automatically organizes your Gmail inbox by fetching recent emails, analyzing their content with AI, and applying the appropriate Gmail labels based on the resul ...
15
Aug 20, 2025
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 Community managers, content marketers, and builders who want a daily, skimmable up ...
26
Aug 20, 2025
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 Sheets Knowledge base and WHMCS API to Check Domain Name Availability Who's it for Th ...
0
Built by Omer Fayyaz Omer Fayyaz
Aug 20, 2025
Daily news summarization with OpenAI Perplexity AI delivered via Telegram
Overview This n8n workflow automatically fetches the latest news articles from multiple RSS sources, filters for the last 24 hours, summarizes them into a concise ~400-word digest in Vietnamese, and ...
781
Built by DuyTran DuyTran
Aug 20, 2025
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: TRUNG) Decodo is a powerful public data access platform offering m ...
70
Built by Trung Tran Trung Tran
Aug 20, 2025
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 while you're out, this workflow is for you. It's perfect for freelancers, profes ...
17
Aug 20, 2025
Automate Call Center Sentiment Analysis with GPT-4o-mini and Google Sheets
✅ What problem does this workflow solve? Call centers often record conversations for quality control and training, but reviewing every transcript manually is tedious and inefficient. This workflow ...
0
Aug 20, 2025
Send AI-Summarized Unread Email Alerts to Slack using GPT-4o and Gmail
Who is this for? If you’re overwhelmed with incoming emails but only want to be notified about the essentials, this workflow is for you. Perfect for busy professionals who want a short AI summary of ...
0
Aug 20, 2025
Automate ABM Research to Outreach with Octave, AI, and Instantly.ai
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. Complete account-based outreach automation with Octave context engine Who is this for? Revenue te ...
0
Built by Nalin Nalin
Aug 20, 2025
Query Your Trello Board Using Natural Language with OpenAI GPT
💬 Chat with Your Trello Board (n8n + OpenAI) 📖 Description Turn your Trello board into a conversational assistant. This workflow pulls your board → lists → cards, aggregates the context, an ...
0
Aug 20, 2025
Generate Personalized Email Sequences with Octave, LLM & External Data
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. Generate dynamic email sequences with runtime context and external data Who is this for? Growth t ...
0
Built by Nalin Nalin
Aug 20, 2025
Automated Trello Board Summarization with GPT-5-Nano
This workflow pulls a Trello board → lists → cards, maps key fields (board, list, task names/descriptions), and asks OpenAI to summarize the board. ⚙️ Setup Instructions 1️⃣ Connect Trel ...
0
Aug 19, 2025
Analyze Legal Documents with GPT & o4-mini plus Gmail & Google Sheets
Description This workflow lets you upload a PDF document and automatically analyze it with AI. It extracts the text, summarizes the content, flags key clauses or risks, and then delivers the results ...
0
Built by Swot.AI Swot.AI
Aug 19, 2025