Browse 7,110 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.

7,110 workflows in Langchain
Nodes: Sort: Date:
Watch web pages for changes with Google Gemini, Google Sheets, and Slack
Quick Overview This workflow checks a specified web page every 6 hours, stores snapshots in Google Sheets, and when the page text changes it uses Google Gemini to summarise what changed and posts the ...
0
Jul 31, 2026
Turn voice memos into structured task lists with Google Gemini and Google Sheets
Quick Overview This workflow collects a voice memo via an n8n form, transcribes it with Google Gemini, extracts a structured task list, emails the summary and tasks via Gmail, and appends each task as ...
0
Jul 31, 2026
Draft and approve Gmail support replies with Google Gemini and Slack
Quick Overview This workflow polls Gmail for unread emails labeled “support”, uses Google Gemini to draft a concise reply, and posts it to Slack for human approval; approved drafts are sent via Gm ...
0
Jul 31, 2026
Generate LinkedIn posts from Gmail topics with Google Sheets and Gemini
Quick overview This workflow captures LinkedIn post topics from incoming Gmail messages into Google Sheets, then runs daily cleanup and AI generation with Google Gemini to publish a post to a LinkedIn ...
1
Jul 30, 2026
Review Discord community applications with Tally, OpenAI and Discord
Quick overview This workflow triggers on new Tally form submissions, uses OpenAI to review Discord community applications and classify them as Approved, Needs Review, or Rejected, then posts the resul ...
0
Built by TOMOYA TOEI TOMOYA TOEI
Jul 30, 2026
Enrich and deduplicate BROSH CRM leads with OpenAI and BROSH MCP
Quick overview This workflow receives lead data via a webhook, validates and normalizes the payload, then uses OpenAI web search and the BROSH MCP API to enrich the lead and create or reuse matching A ...
0
Built by Ben Ford Ben Ford
Jul 29, 2026
Qualify and enrich Odoo leads with Tavily, Google Gemini, and Resend
Quick overview This workflow receives web leads via a secured webhook, enriches them with Tavily search results, scores and formats them using Google Gemini, then creates a lead in Odoo and sends a pe ...
Send weekly AI crawler visibility reports with Cloudflare, Claude, and Telegram/email
Quick Overview This workflow runs on a weekly schedule, queries Cloudflare GraphQL Analytics for requests matching known AI crawler user-agents, aggregates request counts per bot, generates a short su ...
0
Built by Meridian IA Meridian IA
Jul 29, 2026
Handle healthcare appointments on WhatsApp with Gemini and Google Calendar
Quick overview This workflow uses the WhatsApp Cloud API, Google Gemini, Google Calendar, PostgreSQL, Redis, and Google Sheets to run an AI appointment assistant that answers scheduling questions, che ...
300
Jul 29, 2026
Sync and audit template vectors with Ollama embeddings and Qdrant
Quick overview This workflow runs daily to pull recent community workflow templates from the n8n public catalog API, extract full workflow JSON, sanitize and scan it for potential exposed secrets, gen ...
0
Jul 29, 2026
Create weekly SEO blog posts from Google Sheets with Gemini and Sanity
Quick overview This scheduled workflow pulls focus keywords from Google Sheets, expands them with rising Google Trends queries via SerpApi, validates demand with Ahrefs metrics on RapidAPI, then uses ...
1
Built by Vinsen Vinsen
Jul 29, 2026
Verify onboarding compliance documents with OpenAI, Google Sheets, Telegram, and Slack
Quick overview This workflow monitors new hires in Google Sheets, downloads onboarding documents from Google Drive, uses OpenAI (gpt-4o-mini) to verify each file and determine overall compliance, then ...
2
Built by Rahul Joshi Rahul Joshi
Jul 28, 2026
Manage dental patient chat, bookings, and reminders with Telegram, OpenAI and Sheets
Quick overview This workflow manages dental clinic patient conversations and reminders by handling Telegram messages, using OpenAI to answer treatment and general queries, storing patient details in G ...
4
Built by Rahul Joshi Rahul Joshi
Jul 28, 2026
Monitor brand mentions and draft crisis responses with OpenAI and Telegram
Quick overview This workflow monitors brand mentions stored in Google Sheets on a 15-minute schedule, uses OpenAI to classify crisis severity and draft PR responses, logs incidents to a crisis sheet, ...
0
Built by Rahul Joshi Rahul Joshi
Jul 28, 2026
Predict employee attrition risk with Google Sheets, OpenAI, Gmail, and Telegram
Quick overview This workflow runs weekly to pull HR datasets from Google Sheets, calculate rule-based attrition risk signals, and enrich them with an OpenAI (GPT-4o-mini) risk assessment. It logs resu ...
3
Built by Rahul Joshi Rahul Joshi
Jul 28, 2026
Triage RFQ emails and draft quote replies with Gmail and OpenAI
Quick Overview This workflow monitors Gmail for unread RFQ emails, optionally extracts text from attached PDFs, and uses OpenAI to pull structured quote details and check completeness before creating ...
0
Jul 28, 2026
Generate chat-based sound effects with OpenAI and ElevenLabs
Quick overview This workflow turns an n8n chat message into a detailed sound-effect prompt using OpenAI, then generates an MP3 sound effect via the ElevenLabs Sound Generation API and replies in chat ...
0
Built by Dr. Firas Dr. Firas
Jul 28, 2026
Create UGC Instagram reels from product photos with OpenAI, AtlasCloud Seedance and Blotato
Quick overview This workflow turns a product photo into a generated UGC-style video and Instagram Reel by using OpenAI to analyze the image and write a video prompt and caption, AtlasCloud Seedance to ...
4
Built by Dr. Firas Dr. Firas
Jul 28, 2026
Generate and publish LinkedIn posts with OpenAI, Gmail, and Google Sheets
Quick overview This workflow generates LinkedIn post ideas and drafts with OpenAI, routes approvals through Gmail replies, tracks each content cycle in Google Sheets, and publishes the selected draft ...
5
Built by Dr. Firas Dr. Firas
Jul 28, 2026
Draft Gmail reply suggestions with OpenAI for inbound emails
Quick overview This workflow monitors a Gmail inbox for new messages, filters out excluded senders, uses OpenAI to decide whether a reply is needed, and drafts a suggested response in the original Gma ...
13
Built by Dr. Firas Dr. Firas
Jul 28, 2026