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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Build an Advanced Multi-Query RAG System with Supabase and GPT-5
Go beyond basic Retrieval-Augmented Generation (RAG) with this advanced template. While a simple RAG setup can answer straightforward questions, it often fails when faced with complex queries and can ...
0
Aug 23, 2025
Automated Invoice Payment Tracking with OCR, Claude AI, Slack & Notion DB
How it Works This workflow automates Invoice & Payment Tracking (with Approvals) across Notion and Slack. Ingest — You drop invoices/receipts (PDF/IMG/JSON) into the flow. Extract — OCR + parsing ...
0
Built by Han Han
Aug 23, 2025
Automate Video Creation from Voice Input with HeyGen, GPT-5 & Social Publishing
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. Automate Video Creation from Voice Input with HeyGen & n8n 👥 Who is this for? This workflow i ...
0
Built by Dr. Firas Dr. Firas
Aug 23, 2025
Manage Notion Documents with Gemini AI: Fetch, Summarize & Update via Chat
AI Notion Assistant for Teams | Automated Knowledge Base & Smart Content 💥 What It Does Drowning in Notion pages and manual updates? Tired of scattered information and endless searching? This n8n ...
0
Built by YungCEO YungCEO
Aug 23, 2025
AI-Powered Restaurant Booking System with Telegram, Calendar & Email Notifications
Overview This workflow is an AI-powered Booking Assistant that automates restaurant and event reservations through Telegram. It interacts with the user in natural conversation, collects booking detai ...
0
Built by Aziz B Aziz B
Aug 23, 2025
Automate WordPress & WooCommerce Content with OpenAI: Reviews, Comments & Updates
This workflow automates reviews, comments, and content enhancements for WordPress and WooCommerce using AI. It includes five independent paths that you can run manually or schedule automatically. Fea ...
0
Aug 23, 2025
Automate Business Partner Outreach with Google Maps, GPT-4 & WhatsApp
Automate Outreach Prospect automates finding, enriching, and messaging potential partners (like restaurants, malls, and bars) using Apify Google Maps scraping, Perplexity enrichment, OpenAI LLMs, Goo ...
0
Aug 23, 2025
Automatically Label Gmail Emails with GPT-5 Classification
How it works This workflow automatically monitors your Gmail inbox and uses OpenAI's GPT model to intelligently classify incoming emails into four key categories: High Priority - Urgent emails requir ...
0
Aug 23, 2025
Nutrition Tracker & Meal Logger with Telegram, Gemini AI and Google Sheets
🤖🥗 Telegram Nutrition AI Assistant (Alternative to Cal AI App) > AI-powered nutrition assistant for Telegram — log meals, set goals, and get personalized daily reports with Google Sheets i ...
4,244
Aug 23, 2025
Article to Threaded Bluesky Posts with JinaAI and Gemini/GPT
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. Who is this for? Automation enthusiasts, content creators, or social media managers who post arti ...
0
Aug 23, 2025
Extract Specific Website Data with Form Input, Gemini 2.5 flash and Gmail
What this workflow does This workflow creates an automated web scraper that accepts form submissions, extracts specific data from any website using AI, and emails the results back to you. Step by st ...
16
Aug 23, 2025
Automate Gmail Email Triage with Eisenhower Matrix and GPT-4.1-mini
Who is this workflow for This workflow is designed for busy professionals, productivity enthusiasts, and teams drowning in email overload. Whether you're a startup founder, operations manager, executi ...
0
Aug 22, 2025
Auto-Generate Instagram Carousels with GPT-Image-1 & AI Captions from Google Sheets
🧰 Instagram Carousel Scheduler A tool to automatically publish Instagram carousels using a Post Description, Instructions, and the number of images you want to post — all directly from a Google ...
0
Aug 22, 2025
Enrich Monday.com Leads & Draft Personalized Emails with Explorium MCP and GPT-4.1
Enrich Monday.com leads with AI-powered company research and personalized email drafts using Explorium MCP and GPT-4.1 AI-Powered Lead Enrichment & Email Writer for Monday.com 🚀 Overview Stop lo ...
0
Built by Elay Guez Elay Guez
Aug 22, 2025
Automate LinkedIn Post Summaries to Slack with AI and Apify
Turn LinkedIn Noise Into Weekly Slack Insights 🚀 What if your team could skim the best of LinkedIn in 2 minutes instead of scrolling for hours? This workflow transforms raw LinkedIn posts into a ...
0
Built by Ziad Adel Ziad Adel
Aug 22, 2025
HR Policy Retrieval using Slack, S3, and GPT-4.1-mini with RAG
HR Chatbot with RAG: Retrieve Company Policies via Slack, Amazon S3, and OpenAI Overview Answer HR and company policy questions via Slack, powered by a Knowledge Base of internal documents stored in S ...
0
Aug 22, 2025
Generate Business Ideas & Social Media Content from Reddit with AI Analysis to Telegram
Description AI-Powered Business Idea Generation & Social Media Content Strategy Workflow This intelligent content discovery and strategy system features 15 nodes that automatically monitor Reddit co ...
0
Built by Femi Ad Femi Ad
Aug 22, 2025
Financial Data Q&A Chatbot with Google Finance, SerpAPI, and OpenAI
Replace YOUR_API_KEY with your actual SerpApi key. 2️⃣ Set Up OpenAI Connection Go to OpenAI Platform Navigate to Billing and ensure your account has credits/funding Copy your API Key in ...
0
Aug 22, 2025
Daily Financial Markets Summaries with SerpAPI and OpenAI GPT
This workflow fetches live financial data from SerpApi and generates a daily market recap using OpenAI. ⚙️ Setup Instructions 1️⃣ Set Up SerpApi Connection Create a free account at Ser ...
0
Aug 22, 2025
News Search & Categorization Chatbot with Google News, SerpAPI, and OpenAI
🧑‍💻 Description This workflow connects SerpApi with OpenAI inside n8n to automate Google News monitoring and analysis. It’s built for market researchers, analysts, communications teams, a ...
0
Aug 22, 2025