Browse 6,328 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.

6,328 workflows in Langchain
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Prevent Prompt Injection Attacks with a GPT-4O Security Defense System
AI Security Pipeline - Prompt Injection Defense System using GPT-4O Protect your AI workflows from prompt injection attacks, XSS attempts, and malicious content with this multi-layer security sanitiz ...
0
Aug 15, 2025
Multi-tool Personal Assistant with Telegram, Grok-4, Gmail, Calendar & Memory
Summary Chat with your AI agent in Telegram. It remembers important facts about you in Airtable, can transcribe your voice messages, search the web, read and manage Google Calendar, fetch Gmail, and q ...
0
Aug 15, 2025
Natural Language to SQL Converter for Google Sheets with GPT-4o
This n8n workflow template creates an intelligent data analysis system that converts natural language questions into Google Sheets SQL queries using OpenAI's GPT-4o model. The system generates proper ...
2
Aug 15, 2025
Natural Language Google Sheets Data Analysis with Gemini AI
This n8n workflow template creates an efficient data analysis system that uses Google Gemini AI to interpret user questions about spreadsheet data and processes them through a specialized sub-workflo ...
0
Aug 15, 2025
Talk to Your Google Sheets Using ChatGPT-5
This n8n workflow template creates an intelligent data analysis chatbot that can answer questions about data stored in Google Sheets using OpenAI's GPT-5 Mini model. The system automatically analyzes ...
1,647
Aug 15, 2025
Auto-Generate LinkedIn Content with Gemini AI: Posts & Images 24/7
🔄 How It Works - LinkedIn Post with Image Automation Overview This n8n automation creates and publishes LinkedIn posts with AI-generated images automatically. It's a complete end-to-end solution ...
404
Aug 15, 2025
Analyze YouTube Comments Sentiment & Keywords with Gemini AI and Telegram Reporting
YouTube Comment Sentiment & Keyword Extractor Template Google Sheets: Click here to open This workflow automatically retrieves comments from YouTube videos listed in Google Sheets, analyzes sentimen ...
0
Built by Budi SJ Budi SJ
Aug 15, 2025
Extract Context from Voice Notes with OpenRouter AI & Milvus for RAG Systems
Voice Note Context Extraction Pipeline with AI Agent & Vector Storage This n8n template demonstrates how to automatically extract and store contextual information from voice notes using AI agents and ...
0
Aug 15, 2025
Daily Tech & Cyber Security Brief with RSS, OpenAI GPT-4o, and Gmail
What this workflow does Pulls free security/tech headlines from multiple RSS feeds (e.g., CISA, BleepingComputer, Krebs, SecurityWeek, Ars Technica, TechCrunch, Hacker News). De-duplicates stories, k ...
939
Aug 15, 2025
Auto-Respond to Slack Messages as Yourself using GPT and Google Docs RAG
💬 GPT-5 Slack Impersonation Agent with RAG – Auto-Respond to Messages Using Live Project Docs Let AI handle your Slack conversations — and always have the right answer. This n8n workflow trans ...
0
Aug 15, 2025
Lead Generation Agent
Who this is for This workflow is for digital marketing agencies or sales teams who want to automatically find business leads based on industry & location, gather their contact details, and send pers ...
37
Aug 15, 2025
Amazon Affiliate Marketing Automation
Who this is for This workflow is for Amazon affiliate marketers and social media managers who want to quickly turn product links into engaging Facebook posts with AI-generated captions and images — ...
22
Aug 15, 2025
Generate cheap Viral AI Videos to TikTok with Google Veo3 Fast and Postiz
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. This workflow automates the entire process of generating short AI videos using Google Veo3 Fast, e ...
0
Aug 15, 2025
Automate Weekly Tutorials from Trending GitHub Repos with Gemini AI to WordPress
Overview: GitHub to WordPress Tutorial Generator This workflow automates the process of creating technical tutorials for your blog. It runs on a weekly schedule, automatically identifies trending Git ...
0
Aug 15, 2025
Deploy AI-Powered Website Chatbot with DeepSeek and Custom Branding
Who's it for This template is perfect for business owners, developers, and marketers who want to add a professional, branded AI chatbot to their website. Whether you're running an e-commerce site, a ...
0
Built by Omer Fayyaz Omer Fayyaz
Aug 15, 2025
IPL Cricket Rules Q&A Chat Bot using RAG and Google Gemini API
This workflow has 2 Broad Steps Step 1 - Vector store creation with set of ipl rules using Google Gemini Embedding. This will we used to drive RAG for model grouding Step 2 - Connecting the vector ...
0
Built by Sidd Sidd
Aug 15, 2025
AI-Powered Personal Finances Manager with Gemini, Telegram & Google Sheets
Who’s it for This template is designed for individuals who want to gain full control over their personal finances without the hassle of manual tracking. Ideal for freelancers, small business owners ...
0
Aug 15, 2025
Complete B2B Sales Pipeline: Apollo Lead Gen, Mailgun Outreach & AI Reply Management
✉️ AI-Powered 3-Step B2B Pipeline — Lead Gen → Cold Outreach → AI Drafted Email Management Automate your outbound workflow from prospecting to AI-generated reply drafts in Gmail — all ful ...
0
Built by Paul Paul
Aug 14, 2025
AI-Powered Support Automation with Outlook, OpenAI & JIRA Ticketing
This workflow automatically processes customer support requests from emails and web forms, uses AI to classify and either auto-resolve simple issues or intelligently route complex ones to the right te ...
0
Built by Annie To Annie To
Aug 14, 2025
AI-Powered WhatsApp Support Bot with Ticket Creation for Google Sheets
This n8n workflow automates the entire process, from learning based on your website data, documents to a multi-channel chatbot with automated ticket creation. It's the perfect solution for businesses ...
2
Built by Zain Khan Zain Khan
Aug 14, 2025