Browse 6,989 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.

6,989 workflows in Langchain
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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 ...
0
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 ...
0
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 ...
0
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 ...
0
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 ...
0
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 ...
0
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 ...
0
Oct 06, 2026
Score and send job matches from public boards to Telegram with Claude
Quick overview This workflow checks public job postings from Ashby, Greenhouse, and Lever boards plus Jobicy and Himalayas feeds, filters and deduplicates them, scores each new role against your profi ...
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Oct 06, 2026
Triage purchase requisitions with Airtable, Groq, Google Sheets, and Slack
Quick overview This workflow monitors new purchase requisitions in Airtable, uses Groq LLM scoring plus keyword checks and department rules to determine an urgency-based routing decision, logs each de ...
0
Oct 06, 2026
Generate and score LinkedIn posts from bullet points with Gemini and Google Sheets
Quick overview This workflow receives bullet points via a webhook, uses Google Gemini to generate and score three LinkedIn post variations, logs the results to Google Sheets, and returns an HTML page ...
0
Oct 06, 2026
Compare personal grocery inflation to US CPI with Gemini and Telegram
Quick overview This workflow accepts grocery receipt photos via an n8n form or Telegram, uses Google Gemini to extract and normalize line items, calculates a personal month-to-month inflation rate, pu ...
0
Oct 06, 2026
Post daily weather-based X updates with OpenWeatherMap, OpenAI, and Google Sheets
Quick overview This workflow runs daily at 07:00, pulls current weather from OpenWeatherMap, uses OpenAI to generate a weather-matched post, publishes it to X (Twitter), and logs the weather, bucket, ...
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Built by kenta kenta
Oct 06, 2026
Detect compromised GitHub dependencies with Gemini and Slack alerts
Quick overview Know within an hour when a hijacked or malicious npm, PyPI or other open-source package lands in any of your GitHub repositories. This workflow checks new GitHub malware and critical ad ...
0
Oct 06, 2026
Triage LINE customer chats with Claude Haiku 4.5 and Slack for staff follow-up
Quick overview This workflow receives customer messages from LINE, uses Anthropic Claude to auto-answer common questions from your shop data, and routes everything else to a Slack thread for staff to ...
0
Oct 06, 2026
Book dental appointments via chat using OpenAI, Qdrant, and Google Calendar
Quick overview This chat-based dental receptionist answers clinic questions using documents stored in Qdrant, checks Google Calendar availability, and books appointments after patient confirmation. It ...
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Oct 06, 2026