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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Triage urgent messages across email and social with OpenAI GPT-4.1-mini and Nilyo
Quick overview This workflow triggers on new emails via Nilyo (Gmail, Outlook, or IMAP), uses OpenAI GPT to classify each message as urgent or not, and sends a WhatsApp alert through Nilyo only when t ...
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Built by Nilyo Nilyo
Sep 28, 2026
Create 15 podcast content assets with OpenAI, Notion, and Gmail
Quick overview This workflow collects a podcast episode via an n8n form, generates 15 marketing assets using OpenAI (including Whisper transcription), publishes them to a Notion review page, and uses ...
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Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Reconcile GST invoices from Gmail with GSTR-2B using Google Sheets and OpenAI
Quick overview This workflow runs monthly to extract GST purchase invoice details from Gmail PDF attachments using OpenAI, reconciles them against GSTR-2B data in Google Sheets, writes a reconciliatio ...
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Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Turn Zoom coaching sessions into recap emails, homework, and nudges with OpenAI and Google Sheets
Quick overview This workflow turns completed Zoom coaching recordings into AI-generated session recaps and homework action plans, logs everything to Google Sheets, emails clients via Gmail, and runs d ...
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Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Predict and route late payment reminders with Google Sheets, OpenAI, Gmail and Slack
Quick overview This workflow runs every weekday morning to read invoices and payment history from Google Sheets, score each open invoice for late-payment risk, and use OpenAI plus Gmail to send friend ...
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Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Send tailored pre-meeting briefs from Google Calendar and Gmail with OpenAI
Quick overview This workflow runs every 30 minutes (or manually) to find upcoming external Google Calendar meetings, pulls recent Gmail history with the primary external attendee, uses OpenAI to gener ...
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Sep 28, 2026
Enrich GDPR research contacts in Airtable with Tavily, OpenAI, and Dropcontact
Quick overview This workflow runs twice daily to read pending research prompts from Airtable, uses Tavily search plus OpenAI to extract relevant people, enriches them with Dropcontact, and upserts the ...
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Sep 28, 2026
Qualify inbound WhatsApp leads with Wafly and OpenAI GPT-4o-mini
Quick overview This workflow receives inbound WhatsApp messages via Wafly, uses OpenAI (GPT-4o-mini) with per-phone memory to classify each lead as hot/warm/cold, replies to the sender, and sends hot ...
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Built by Iago Iago
Sep 28, 2026
Score inquiry emails into Google Sheets leads with OpenAI and Telegram alerts
Quick Overview This workflow polls Gmail for new inquiry emails, uses OpenAI to extract lead details, saves or updates one lead per sender in Google Sheets, and sends Telegram alerts for hot leads bas ...
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Sep 28, 2026
Create Facebook photo posts from Telegram albums using OpenRouter AI
Quick overview Automate multi-photo Facebook posts from Telegram albums. This workflow buffers incoming photos, uses OpenRouter AI to generate engaging social media captions, uploads media in bulk, an ...
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Built by MADIAD MADIAD
Sep 28, 2026
Send a morning inbox digest from email, WhatsApp, and LinkedIn with Nilyo and OpenAI
Quick overview This workflow runs every morning and uses Nilyo to collect recent WhatsApp messages, incoming emails, and pending LinkedIn invitations, then uses OpenAI to write a short briefing and se ...
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Built by Nilyo Nilyo
Sep 28, 2026
Send SMS campaigns from Google Sheets and track delivery with SMS Vert Pro MCP
Quick Overview This workflow manually sends an SMS via the SMS Vert Pro MCP server, waits 30 seconds, and then retrieves a delivery report for the SMS campaign using the returned campaign ID. How it ...
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Sep 28, 2026
Sync WordPress and WooCommerce content with Pinecone using OpenAI embeddings
Quick overview This workflow syncs WordPress/WooCommerce pages and blog posts into a Pinecone vector index by fetching content in small batches, generating OpenAI embeddings, and tracking indexed item ...
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Sep 28, 2026
Scan multi-timeframe stock breakouts with Google Sheets, GPT-4.1 and Slack
Quick overview This workflow runs daily to scan a Google Sheets watchlist for active tickers, fetches daily and weekly OHLCV data via an HTTP API, uses OpenAI to summarize confirmed multi-timeframe br ...
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Sep 28, 2026
Track central bank sentiment shifts with OpenAI, Google Sheets, and Slack
Quick overview This workflow runs every three hours to fetch new FED, ECB, and RBI statements from an HTTP feed, analyzes hawkish/dovish sentiment with OpenAI, logs results to Google Sheets, and posts ...
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Sep 28, 2026
Validate procurement records and learn error patterns with Gemini and Data Tables
Quick Overview This workflow receives procurement line-item data via a webhook, validates and normalizes it, checks for known recurring error patterns in an n8n Data Table, and uses Google Gemini to d ...
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Sep 28, 2026
Generate RFx documents from Notion sourcing requests with Groq and Slack
Quick overview This workflow monitors a Notion sourcing pipeline for RFx requests, uses Groq-hosted LLMs to draft an RFx using context from similar past Notion projects, writes the formatted document ...
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Sep 28, 2026
Manage dental appointments via ElevenLabs voice, OpenAI and Google Sheets
Quick overview This workflow receives appointment requests from a voice agent via webhook and uses OpenAI plus Google Sheets to book, reschedule, or cancel dental aAn AI dental receptionist that uses ...
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Built by Abu Bakar Abu Bakar
Sep 28, 2026
Detect SaaS subscription leaks with Google Drive, Gmail, OpenAI, and Slack
Quick overview This workflow runs weekly (or manually) to audit SaaS spend by combining corporate card CSVs from Google Drive, invoice/receipt emails from Gmail parsed with OpenAI, and a SaaS inventor ...
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Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Build a weekly content calendar from YouTube and Instagram comments with OpenAI
Quick overview This weekly workflow pulls recent comments from YouTube and Instagram, filters for real questions and requests, uses OpenAI to cluster and rank recurring topics, then writes a question ...
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Built by Rahul Joshi Rahul Joshi
Sep 28, 2026