Browse 7,043 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.

7,043 workflows in Langchain
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Track contract renewals and obligations with LlamaParse, GPT-4o-mini and Slack
Quick Overview This workflow watches a Google Drive folder for new contract PDFs, parses them with LlamaParse, extracts key terms and obligations with OpenAI, stores everything in Google Sheets, and u ...
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Built by Rahul Joshi Rahul Joshi
Oct 07, 2026
Sync WooCommerce products, blog, and Google Drive files to Pinecone with OpenAI
Quick overview This workflow keeps a Pinecone knowledge base in sync with WooCommerce products and reviews, WordPress pages/posts, and files from a Google Drive folder by generating OpenAI embeddings, ...
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Oct 07, 2026
Analyze crypto trades and sentiment with Binance, NewsAPI, OpenAI, and Telegram
Quick overview This workflow listens for a crypto ticker in Telegram, pulls multi-timeframe candlestick data from Binance and recent headlines from NewsAPI, uses OpenAI to score market sentiment and g ...
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Built by Prabhu Prabhu
Oct 07, 2026
Analyze SEC 10-K/10-Q sentiment with OpenAI, Google Sheets, and Slack
Quick Overview This workflow runs daily to check SEC EDGAR for the latest 10-K or 10-Q filing for a target company, extracts Risk Factors and MD&A text, analyzes sentiment and risk with OpenAI, then l ...
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Oct 07, 2026
Visualize supply chain procurement risk with Groq, Google Sheets, Notion, Slack and Gmail
Quick overview This scheduled workflow pulls supply-chain master data from Google Sheets, builds a supplier–material–plant–logistics graph, scores single points of failure (SPOFs) with a VaR pro ...
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Oct 07, 2026
Plan and recheck trips with Gemini, Gmail, Open-Meteo, Tavily and Data Tables
Quick overview This workflow uses n8n Forms, Google Gemini, Tavily web search, Google Maps Routes API, and Gmail to collect traveler preferences and trip details, verify feasibility with evidence-back ...
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Oct 07, 2026
Refresh financial plans from life events with Google Sheets, OpenAI, and Gmail
Quick overview This workflow sends quarterly financial plan check-in emails via Gmail, watches Google Sheets for submitted life-event responses, and uses OpenAI to refresh only the affected sections o ...
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Oct 07, 2026
Monitor DeFi liquidation risk with OpenAI GPT-4.1 and Slack alerts
Quick overview This workflow runs every 10 minutes to monitor a DeFi lending position by fetching position and price data via HTTP, calculating liquidation risk metrics, logging results to Google Shee ...
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Oct 07, 2026
Create faceless vertical Shorts with OpenAI Sora 2, PostWire, and Sheets
Quick Overview This workflow runs daily, uses Google Sheets to avoid repeating topics, generates a new Shorts concept and Sora 2 video with OpenAI, publishes it via PostWire to YouTube Shorts, TikTok, ...
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Built by PostWire PostWire
Oct 07, 2026
Request and reply to Google reviews with Twilio SMS, Gmail, and OpenAI
Quick overview Local service businesses — plumbers, clinics, salons, contractors, restaurants — that live or die by Google reviews but never remember to ask, and agencies that want a review engine ...
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Oct 07, 2026
Calculate stock replenishment from Excel reports with Google Drive and GPT-4.1 mini
Quick overview This workflow watches a Google Drive folder for newly uploaded XLSX inventory reports, uses OpenAI (GPT-4.1 mini) to calculate per-product replenishment needs, writes the results back i ...
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Oct 06, 2026
Send personalized LinkedIn invitations with OpenAI, Slack and HeyReagent
Quick overview This workflow searches for LinkedIn profiles by keywords and location using the HeyReagent API, then sends a connection invitation with a custom note to each returned person, spacing re ...
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Built by Ling Li Ling Li
Oct 06, 2026
Split and review multi-document PDFs with pdfRest, GPT-4.1-mini, and Google Drive
Quick overview Upload a PDF containing multiple documents, use AI to suggest document groups, and review titles, categories, and page ranges in a guided form. pdfRest creates separate PDFs and a downl ...
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Oct 06, 2026
Extract Turkish invoice data from Gmail PDFs with Google Gemini and Sheets
Quick overview This workflow monitors Gmail for PDF attachments, uploads them to Google Drive, extracts invoice text from PDFs, uses Google Gemini to detect and parse Turkish invoice fields into struc ...
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Built by Onur Olgun Onur Olgun
Oct 06, 2026
Draft partner intro emails from Crossbeam deal signals with Claude and Slack approval
Quick overview This workflow pulls Crossbeam partner deal signals on a schedule or via webhook, matches them to relevant Salesforce accounts, uses Claude with the Crossbeam MCP to draft partner intro ...
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Oct 06, 2026
Turn chat conversations into automation blueprints with Claude, Gmail and Google Sheets
Who's it for Automation consultants and agencies who want a lead magnet that delivers real value, and teams collecting automation ideas. How it works A visitor opens the hosted chat and describes a ...
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Oct 06, 2026
Create daily construction site reports from WhatsApp with OpenAI and Google
Quick overview This workflow captures WhatsApp voice notes, photos, and texts from construction crews, uses OpenAI to transcribe and structure updates, logs them to Google Sheets, stores photos in Goo ...
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Built by Anna Cole Anna Cole
Oct 06, 2026
Build Stripe dispute evidence from WooCommerce orders, Gmail, and OpenAI
Quick overview This workflow reacts to Stripe dispute events, pulls related WooCommerce order details and recent Gmail messages, uses OpenAI to draft dispute evidence, saves the evidence on the Stripe ...
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Built by Anna Cole Anna Cole
Oct 06, 2026
Manage client onboarding with Anthropic, Supabase, Gmail and Slack
Quick overview This workflow collects client intake via an n8n Form, uses Anthropic to analyze requirements and draft emails, stores onboarding data in Supabase, creates a Google Drive folder, and sen ...
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Oct 06, 2026
Write and fact-check Google Docs articles with OpenAI and Lenz
Quick overview Fact-check AI-written articles before they go live. Type a topic into an n8n form: OpenAI researches and writes the draft as a Google Doc, Lenz checks the factual claims against indepen ...
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Oct 06, 2026