Browse 6,295 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.

6,295 workflows in Langchain
Nodes: Sort: Date:
Manage school fee receipts and GPT-4o reminders with Razorpay and Google Sheets
Quick overview This workflow automates school fee collection by processing Razorpay payment webhooks, updating student balances in Google Sheets, generating a PDF receipt, and sending it via Gmail, pl ...
0
Built by Rahul Joshi Rahul Joshi
Aug 10, 2026
Inspect product quality from Telegram photos with Google Sheets and Gemini
Quick overview This workflow accepts product inspection photos from Telegram, looks up product-specific quality standards in Google Sheets, and uses Google Gemini to return a structured pass/fail defe ...
0
Built by Rahul Joshi Rahul Joshi
Aug 10, 2026
Send HR job application auto-replies with Gmail and OpenAI GPT-4o
Quick overview This workflow monitors a labeled Gmail inbox for job application emails, uses OpenAI (GPT-4o) to draft a structured HR reply, and sends the response back to the applicant via SMTP email ...
0
Built by Rahul Shah Rahul Shah
Aug 10, 2026
Generate SEO meta drafts from webhook batches with OpenAI and Outlook
Quick overview This webhook-driven workflow validates an incoming SEO post batch, uses OpenAI to generate meta title and description drafts for each post, sends the drafts to a provided callback URL, ...
0
Aug 09, 2026
Generate online reputation reports with SearchAPI, GPT-4o, SharePoint and Outlook
Quick overview This workflow generates an online reputation report for an attorney, law firm, or local business by querying SearchAPI.io, summarizing and scoring the results with an OpenAI GPT-4o agen ...
0
Aug 09, 2026
Draft Discord announcements with Google Gemini, approve in Slack, and log to Google Sheets
Quick Overview This workflow collects an update and tone via an n8n form, uses Google Gemini to draft a short Discord announcement, sends it to Slack for approval, and then either posts it to Discord ...
0
Aug 09, 2026
Answer PDF questions with cited answers using Google Gemini, Gmail and Sheets
Quick Overview This workflow collects a question and PDF via an n8n form, uses Google Gemini to answer using only the document with citations, suggests follow-up questions, emails the results via Gmai ...
0
Aug 09, 2026
Route form feedback with Google Gemini, Google Sheets, Slack and Gmail
Quick Overview This workflow collects feedback via an n8n Form, uses Google Gemini to classify each message (Bug, Feature, Praise, or Other), then routes it to Google Sheets and Slack; for bugs it als ...
0
Aug 09, 2026
Reply to LINE customer chats with Google Gemini and log to Google Sheets
Quick Overview This workflow turns a LINE Official Account into an AI chat assistant by receiving customer messages via a webhook, generating a reply with Google Gemini, sending the response through t ...
0
Aug 09, 2026
Match Gmail job vacancies to your CV with OpenAI and Pinecone
Quick overview This workflow monitors Gmail for incoming job-related emails, extracts job details (including PDF attachments), compares each vacancy to a candidate CV stored in Pinecone using OpenAI, ...
0
Aug 09, 2026
Classify Gmail with Google Gemini, label messages, and log triage to Sheets
Quick overview Youtube Video: https://youtu.be/Bie6K1odgrEhttps://youtu.be/Bie6K1odgrE This workflow monitors unread Gmail inbox messages, uses Google Gemini to classify and score each email, applies ...
0
Built by iamvaar iamvaar
Aug 09, 2026
Alert crop scouts to wind-driven pest threats with GBIF, Gemini, and Slack
Quick overview Workflow Link: https://youtu.be/3ExkAWTyEXU?si=R7bAUzHqf1_LpHnT This workflow runs daily at 6 AM to check GBIF for recent invasive pest occurrences near a farm, combines them with Open ...
0
Built by iamvaar iamvaar
Aug 09, 2026
Monitor regulatory website changes with Claude Sonnet and Gmail alerts
Quick overview This workflow runs daily to monitor regulatory websites, detect page changes via hashing, analyze potential compliance impact with Anthropic Claude Sonnet, log findings to n8n Data Tabl ...
0
Aug 09, 2026
Send AI-powered inbound LinkedIn replies with La Growth Machine and OpenAI
Quick overview This workflow listens for new La Growth Machine inbox messages, uses OpenAI to draft a context-aware reply based on the lead and recent thread history, and sends the response back via L ...
0
Aug 08, 2026
Qualify real estate WhatsApp leads with Groq, Google Sheets, and Twilio
Quick Overview This workflow captures real estate leads from a Lovable webhook, stores them in Google Sheets, qualifies them via a Groq-powered AI agent, and uses Twilio WhatsApp messaging to route HO ...
0
Aug 08, 2026
Turn call, chat, and email transcripts into sales records with Claude, Sheets, and Gmail
Quick overview This workflow accepts a call, chat, or email transcript via an n8n form or a webhook, uses Anthropic Claude to extract structured sales fields and a follow-up message, logs the results ...
0
Aug 08, 2026
Score client toxicity from form submissions with GPT-4o Mini and n8n Forms
Quick Overview This workflow collects a client’s message via an n8n Form, analyzes it with OpenAI (GPT-4o Mini) to score toxicity and identify warning signs, then generates a styled HTML report show ...
0
Built by isaWOW isaWOW
Aug 08, 2026
Score freelancer proposal PDFs from form submissions with OpenAI GPT-4o Mini
Quick Overview This workflow collects a client’s requirements and a freelancer’s proposal PDF via an n8n Form, extracts the PDF text, and uses OpenAI (GPT-4o Mini) to score the proposal and genera ...
0
Aug 08, 2026
Create seminar teaching packs from research PDFs with Qwen, Gotenberg and Gmail
Quick overview This workflow collects a research paper PDF via an n8n Form, uses an AI agent (with schema validation) to generate a seminar-ready teaching pack and slide plan, renders it to a PDF with ...
0
Aug 08, 2026
Manage VIP table reservations with Google Sheets and OpenRouter Gemini
Quick overview This workflow runs an n8n Chat-based VIP concierge that uses OpenRouter and Google Sheets to answer venue questions and confirm VIP table reservations by reading live tables, events, bo ...
0
Aug 08, 2026