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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Generate pool service visit reports with Google Sheets, Gemini, Gmail, Slack, and Telegram
Quick Overview This workflow collects pool service visit notes via an n8n Form, looks up customer and history in Google Sheets, uses Google Gemini to structure the notes into a report, logs visits and ...
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Built by iamvaar iamvaar
Oct 05, 2026
Triage watch repair requests with Google Gemini, HighLevel, Sightengine and Gmail
Quick overview Youtube Video: https://youtu.be/Qd5CW0-TwS4 This workflow collects watch repair requests via an n8n form, syncs the customer to GoHighLevel, checks the uploaded photo with Sightengine, ...
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Built by iamvaar iamvaar
Oct 05, 2026
Triage elevator complaints and manage tickets with Google Sheets and Gemini
Quick overview Youtube Video: https://youtu.be/CPAekWNslrc This workflow receives elevator complaints and technician service reports via webhooks, looks up and updates records in Google Sheets, uses ...
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Built by iamvaar iamvaar
Oct 05, 2026
Monitor Swiggy and Zomato reviews with GPT-4o-mini, Telegram, and Google Sheets
Quick Overview This workflow monitors Swiggy and Zomato reviews via an HTTP feed polled every 30 minutes or a webhook, uses OpenAI to analyze sentiment and draft replies, logs results to Google Sheets ...
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Built by Rahul Joshi Rahul Joshi
Oct 05, 2026
Answer finance questions from Xero via WhatsApp, Telegram, Slack, and OpenAI
Quick overview This workflow answers finance questions received on WhatsApp (via WAHA) or Telegram by fetching data from Xero, drafting a validated response with OpenAI, optionally posting the result ...
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Built by Intuz Intuz
Oct 05, 2026
Sell clothing on Facebook Messenger with Gemini, Stripe, and an admin app
Quick overview This workflow turns Facebook Messenger messages into a clothing sales flow powered by Google Gemini, with carts and orders stored in n8n Data Tables, payments handled via Stripe Checkou ...
0
Oct 05, 2026
Generate social content hooks with OpenAI GPT-4o-mini
Quick overview This workflow runs manually and uses OpenAI (GPT-4o-mini) to generate 10 scroll-stopping content hooks from a provided topic, audience, and tone, returning the results as JSON. How it ...
1
Oct 05, 2026
Write cited research reports from DuckDuckGo search results with OpenRouter
Quick overview Ask a question in a form; this workflow searches the web with DuckDuckGo and has an OpenRouter model write a report in which every claim cites a page it read, with every quote checked ...
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Built by Sam Sam
Oct 04, 2026
Turn conference contacts into Gmail follow-ups with Telegram, OpenAI and Google Sheets
Quick overview Handshake AI turns every conference handshake into a follow-up. Send a Telegram card photo, voice note or text; OpenAI (and Groq for voice) extracts and researches the contact, saves it ...
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Oct 04, 2026
Triage Upwork job alert emails with Gmail, OpenAI, and Telegram
Quick overview This workflow watches your Gmail inbox for Upwork job-alert emails, uses OpenAI to extract and score each job against your freelancer profile, then sends high-scoring opportunities as f ...
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Built by Umarjon Umarjon
Oct 04, 2026
Generate SEO blog posts with Claude and save drafts to WordPress
Quick overview This workflow collects blog keywords via an n8n form, uses Anthropic Claude to plan and write an SEO-focused article based on a reference post’s structure, then assembles the content ...
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Built by dilshi dilshi
Oct 04, 2026
Chase missing client documents from Google Sheets with OpenAI and Gmail
Quick Overview This workflow runs every weekday morning to read open document requests from Google Sheets, uses OpenAI to draft reminder emails in your firm’s tone, sends them via Gmail, and updates ...
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Built by NewBrainsAI NewBrainsAI
Oct 04, 2026
Triage Gmail inbox, label emails, and draft replies with OpenAI
Quick overview This workflow watches for new unread Gmail messages, uses OpenAI to classify each email and draft a reply, then either creates a Gmail draft in the original thread and labels the messag ...
0
Oct 04, 2026
Test Instagram trial reel hooks with Gemini, Veo 3.1, PostWire, and Sheets
Quick Overview This workflow collects a video idea via an n8n form, uses Google Gemini to generate multiple opening-hook variants and Veo 3.1 to render a short vertical video for each, then uploads an ...
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Built by PostWire PostWire
Oct 04, 2026
Create Veo 3.1 short-form videos from Telegram with Gemini and PostWire
Quick Overview This workflow listens for a text idea sent to a Telegram bot, uses Google Gemini to generate a Veo 3.1 prompt and platform-specific copy, renders an 8-second vertical video with Veo 3.1 ...
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Built by PostWire PostWire
Oct 04, 2026
Process Shopify email return refunds with Gmail, Claude, Slack, and Google Sheets
Quick overview This workflow monitors a Gmail label for Shopify return-request emails, uses Anthropic Claude to extract key details, checks eligibility against a JavaScript return policy, calculates t ...
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Built by Amplence Amplence
Oct 03, 2026
Send daily CISA KEV EPSS risk digests to Slack with OpenAI
Quick Overview This workflow runs daily to monitor the CISA Known Exploited Vulnerabilities (KEV) catalog for CVEs matching your tech stack, enriches them with FIRST EPSS scores, uses OpenAI to genera ...
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Built by V3nom tech V3nom tech
Oct 03, 2026
Manage QA CAPA lifecycle with Google Sheets, Gmail, and Google Gemini
Quick overview This workflow collects QA/QC audit findings via an n8n form, uses Google Gemini to assess severity and CAPA need, and then tracks CAPAs in Google Sheets while sending assignment, verifi ...
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Oct 03, 2026
Collect and reconcile rent with Google Sheets, Gmail, Twilio, and OpenAI
Quick Overview This workflow runs hourly to calculate rent due from Google Sheets leases, match incoming bank statement lines to tenants, and automatically chase arrears via Twilio SMS and Gmail email ...
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Built by Luca Luca
Oct 03, 2026
Create purchase orders from Gmail using Groq LLM, Airtable, and Google Sheets
Quick overview This workflow pulls unread “purchase request” emails from Gmail, uses a Groq-hosted LLM to extract line items and urgency into structured JSON, matches items against an Airtable cat ...
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Oct 03, 2026