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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Publish Arabic kids’ stories with text, images, and audio using OpenAI and Telegram
Quick overview This workflow runs every 12 hours to generate a short kids’ story with OpenAI, translate it into Arabic, create a DALL·E image prompt and image, and publish the Arabic text, image, a ...
0
Sep 24, 2026
Save and categorize N26 transactions in Notion using Groq
Quick overview This workflow uses Enable Banking to sync N26 transactions into a Notion database, classifies each transaction with Groq (LangChain Text Classifier), and supports both an initial consen ...
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Built by Ali Hamad Ali Hamad
Sep 24, 2026
Route vendor invoices for AP review with Jev Classification, Google Sheets, Gmail, Telegram, and OpenAI
Quick Overview This workflow receives vendor invoice submissions via webhook, uses Jev Classification to assess invoice completeness, logs the routing outcome to Google Sheets, and notifies Accounts P ...
0
Sep 24, 2026
Send daily daycare menu, schedule, and weather briefings with Gemini and WhatsApp
Quick overview This workflow runs every morning to fetch a daycare menu from a webpage, read your family schedule from Google Sheets, and pull a local forecast from Open-Meteo, then uses Google Gemini ...
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Built by Lal Krishna Lal Krishna
Sep 24, 2026
Triage Formdall leads with Mistral, Slack, Google Sheets, and Gmail
Quick overview This workflow receives Formdall contact-form submissions via webhook, uses the Mistral Cloud chat model to score each lead as hot, warm, or junk, then routes hot leads to Slack and Goog ...
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Built by Daniel Daniel
Sep 24, 2026
Run a Telegram knowledge base bot with OpenRouter, OpenAI, Supabase and Redis
Quick overview This workflow runs a Telegram private knowledge-base bot with admin-approved access, answering text or voice questions using an OpenRouter chat model grounded in a Supabase vector knowl ...
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Built by Konstantin Konstantin
Sep 24, 2026
Evaluate AI support agent quality and regressions with Google Sheets, Groq and Gmail
Quick overview This workflow runs a customer-support AI agent against Google Sheets test cases, uses Groq-hosted LLMs to evaluate response quality, logs results back to Google Sheets, compares run met ...
0
Sep 24, 2026
Monitor stock watchlist news with Webz.io, GPT-4.1-mini, and Slack
Quick overview This workflow runs every 6 hours to scan Webz.io for recent news about a stock ticker watchlist, uses OpenAI GPT-4.1-mini to keep only market-moving stories, deduplicates alerts by URL, ...
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Built by Webz.io Webz.io
Sep 24, 2026
Qualify inbound leads with OpenAI, Google Sheets, and Telegram alerts
Quick overview Automatically capture inbound leads through an n8n form, analyze their sales potential with AI, assign a 0–100 score and HOT/WARM/COLD classification, save every lead to Google Sheets ...
0
Sep 24, 2026
Turn customer reviews into multi-channel content with OpenAI, Gmail, and Google Sheets
Quick overview This workflow collects a customer review via an n8n form, uses OpenAI to analyze and score it, then either generates a 7-piece content pack and emails it to you or sends a short “belo ...
0
Sep 24, 2026
Send portfolio price move alerts with Google Sheets, OpenAI and Telegram
Quick overview This workflow checks your Google Sheets portfolio for large daily price moves using Yahoo Finance data, enriches movers with SEC EDGAR filings and Google News results via SerpAPI, has O ...
0
Sep 24, 2026
Draft and approve Gmail replies with OpenAI, Cognee, Slack, and Google Sheets
Quick overview This workflow monitors a Gmail inbox for new messages, uses OpenAI to decide whether a reply is needed, drafts grounded replies with a Cognee knowledge base, saves them as Gmail drafts, ...
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Built by Rahul Joshi Rahul Joshi
Sep 24, 2026
Follow up real estate site visits from Telegram with OpenAI, GoHighLevel and Gmail
Quick overview This workflow listens for Telegram voice notes from real-estate agents, transcribes and extracts buyer intent with OpenAI, updates the buyer in GoHighLevel, matches similar available li ...
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Built by Rahul Joshi Rahul Joshi
Sep 24, 2026
Optimize restaurant menu margins with Google Drive, Sheets and GPT-4o
Quick overview This workflow ingests supplier invoice images from Google Drive, uses OpenAI GPT-4o to extract normalized ingredient unit prices into Google Sheets, then runs a weekly margin check by c ...
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Built by Rahul Joshi Rahul Joshi
Sep 24, 2026
Reply to Google reviews and send weekly insights with OpenAI and Slack
Quick overview This workflow monitors new Google Business Profile reviews, uses OpenAI to draft replies and tag a single root-cause category, routes complaint replies to Slack for approval, logs every ...
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Built by Rahul Joshi Rahul Joshi
Sep 24, 2026
Triage support emails and schedule SLA tasks with Gmail, Gemini, Google Calendar, Sheets and Discord
Quick Overview This workflow monitors Gmail for unread emails with the subject “Inquiry Received”, uses Google Gemini to classify and summarize each inquiry, calculates an SLA deadline, creates a ...
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Built by ryo ryo
Sep 24, 2026
Reorder inventory and track supplier confirmations with Sheets, Gmail and GPT-4 Mini
Quick Overview This workflow audits inventory and open purchase orders in Google Sheets, calculates reorder quantities based on measured demand and lead times, and emails purchase orders via Gmail wit ...
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Built by Luca Luca
Sep 24, 2026
Nurture real estate leads with Google Gemini, Gmail, and Google Sheets
Quick overview This workflow adds real-estate leads to a 5-touch Gmail drip campaign, uses Google Gemini to generate and classify all five emails upfront, sends them automatically on schedule, detects ...
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Built by Hassan Hassan
Sep 24, 2026
Escalate process serving attempts and draft affidavits with OpenAI and Slack
Quick overview This workflow collects process-server attempt logs via an n8n form, updates a case tracker in n8n Data Tables, classifies field notes with OpenAI, escalates eligible cases for attorney ...
0
Sep 24, 2026
Predict SEO traffic impact scenarios with Postgres and OpenAI GPT-4.1
Quick overview This workflow exposes a header-authenticated webhook API that simulates the SEO traffic impact of merging, creating, or removing pages using baseline metrics from Postgres, then generat ...
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Sep 24, 2026