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
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Manage hotel guest requests and post-stay outreach with Telegram, OpenAI, and Google Sheets
Quick overview This workflow runs a Telegram concierge for hotel guests, uses OpenAI (gpt-4o-mini) to classify requests, and updates Google Sheets to manage drivers, room extensions, maintenance ticke ...
2
Built by Rahul Joshi Rahul Joshi
Jul 20, 2026
Qualify real estate leads and answer EMI queries via Telegram with OpenAI GPT-4o-mini
Quick overview This workflow listens for Telegram bot messages, uses OpenAI (gpt-4o-mini) to detect language and classify intent, then routes requests to either lead qualification, EMI calculation, or ...
3
Built by Rahul Joshi Rahul Joshi
Jul 20, 2026
Screen and triage Gmail resumes with Gemini and Supabase
Quick overview This workflow watches Gmail for new emails with resume attachments, extracts text from PDF, and uses Google Gemini to evaluate candidates against role requirements. It logs each screeni ...
0
Jul 20, 2026
Create weekly social visuals from OpenAI ideas with Canvora and Slack
Quick overview This workflow runs every Monday and uses OpenAI to generate a social post concept, then sends it to the Canvora API to create on-brand visuals in selected formats and posts the finished ...
1
Built by Jonnie Lane Jonnie Lane
Jul 20, 2026
Monitor procurement spend and risks with Google Sheets, Groq Llama and Gmail
Quick Overview This workflow runs every 15 minutes to pull procurement transactions and department budgets from Google Sheets, calculate spend utilization and forecasts, generate executive risk insigh ...
0
Jul 20, 2026
Benchmark procurement prices and flag overpricing with Google Sheets, Groq, and Slack
Quick overview This scheduled workflow benchmarks internal procurement prices from Google Sheets against historical averages, enriches each item with Google News RSS trend signals, and uses Groq (Llam ...
0
Jul 20, 2026
Triage Gmail and draft email replies with OpenAI, Slack, and Google Sheets
Quick overview This workflow polls your Gmail inbox every 15 minutes, uses OpenAI to classify unread emails as URGENT, STANDARD, or SPAM, drafts reply emails for non-spam messages, posts a review noti ...
0
Built by Operstead Operstead
Jul 20, 2026
Recommend Salesforce quote pricing using Google Sheets, Groq, and Slack
Quick Overview This workflow receives Salesforce Quote events via a webhook, enriches them with Salesforce Opportunity and Account data, benchmarks the deal against historical outcomes stored in Googl ...
0
Jul 20, 2026
Run AI employee onboarding with Groq, Google Workspace, and Gemini
Quick overview This workflow ingests onboarding documents from Google Drive into an in-memory vector store with Google Gemini embeddings, then runs a multi-channel onboarding chatbot powered by Groq, ...
4
Built by Yash Kabra Yash Kabra
Jul 20, 2026
Qualify Facebook lead ads and send follow-ups with Gemini, Gmail, and Sheets
Quick overview Turn every Facebook ad lead into a qualified, followed-up prospect within seconds. AI scores their intent, sends a personalized email tailored to their score, logs campaign intelligence ...
1
Built by Hassan Hassan
Jul 20, 2026
Send a daily AI-ranked job match digest with Anthropic and Gmail from 6+ boards
Quick Overview This workflow runs every morning to pull jobs from multiple free job boards (and optional Adzuna), filters and de-duplicates results, scores each role against your resume and preference ...
1
Jul 20, 2026
Classify lead function and seniority in Google Sheets with Google Gemini
Quick overview This workflow reads contacts from Google Sheets, uses Google Gemini to classify each contact’s job function and seniority from their job title and company name, and writes the Functio ...
0
Jul 19, 2026
Extract real estate listings with Snapshot Site, OpenAI, and Google Sheets
Quick overview This workflow runs daily, reads real estate listing URLs from Google Sheets, captures rendered HTML with Snapshot Site, extracts structured listing details using OpenAI via n8n’s Info ...
16
Jul 19, 2026
Archive and index legal PDFs from Gmail with Gemini, Sheets and Google Drive
Quick Overview This workflow monitors Gmail for unread emails with PDF attachments, uses Google Gemini to extract Japan Electronic Books Preservation Act filing metadata, logs a searchable index in Go ...
0
Jul 19, 2026
Match Japanese jGrants subsidies to your company with Gemini, Slack and Gmail
Quick Overview This workflow runs weekly to search the public jGrants API for open Japanese subsidies, scores each subsidy’s fit for your company using Google Gemini, logs results to Google Sheets, ...
0
Jul 19, 2026
Monitor Japanese business partners for registry changes with gBizINFO and Gemini
Quick Overview This workflow runs weekly to check Japanese business partners listed in Google Sheets against the gBizINFO corporate registry API, uses Google Gemini to assess the risk impact of detect ...
0
Jul 19, 2026
Monitor overtime risk against Japanese labour caps with Gemini, Sheets, Slack & Gmail
Quick Overview This workflow runs weekly to read attendance overtime from Google Sheets, totals it per employee and month, uses Google Gemini to classify risk against Japanese labour-law limits, write ...
0
Jul 19, 2026
Chat with Google Docs and Sheets using a Claude AI agent
Quick Overview This workflow opens an n8n chat interface where an AI agent powered by Anthropic Claude answers questions by reading a connected Google Doc and/or Google Sheet on demand, using short-te ...
1
Jul 19, 2026
Sort Gmail leads, meetings, and trash with OpenAI classification
Quick Overview This workflow monitors Gmail for new messages, applies rule-based pre-classification, and uses OpenAI to categorize ambiguous emails as lead, review, or trash, then applies Gmail labels ...
0
Jul 19, 2026
Monitor competitor pricing page changes with OpenAI, Google Sheets and Slack
Quick overview This workflow checks competitor pricing pages each morning, compares the latest visible text to the previous snapshot stored in Google Sheets, and uses OpenAI to summarize meaningful ch ...
1
Jul 19, 2026