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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Build a Customer Support RAG Agent with GPT-5, Telegram & Pinecone
đź§  RAG-Based Customer Support Agent (GPT-5 + Telegram) Description: This workflow builds a powerful Retrieval-Augmented Generation (RAG) Customer Support Agent that interacts with users directly th ...
0
Aug 08, 2025
Build a GLPI Knowledge Base RAG Pipeline with Google Gemini and PostgreSQL
Description This workflow automates the creation of a Retrieval-Augmented Generation (RAG) pipeline using content from the GLPI Knowledge Base. It retrieves and processes FAQ articles directly via the ...
0
Aug 08, 2025
Document Q&A with RAG: Query PDF Content using Weaviate and OpenAI
RAG over a PDF with Weaviate This workflow allows you to upload a PDF file and ask questions about it using the Question and Answer Chain and the Weaviate Vector Store nodes. Who it's for This workfl ...
0
Aug 08, 2025
AI-Powered Elementor Blog Post Automation System for Agencies with Gemini
AI-Powered Elementor Blog Post Automation System for Agencies Categories: Business Automation, Content Creation, SEO, AI This advanced workflow automates every step of content publishing for agencies ...
32
Built by Zain Khan Zain Khan
Aug 08, 2025
Auto-Detect Actionable Emails with OpenAI & Get Alert Message on Teams via Flow
What It Does This workflow automatically runs when a new email is received in the user's Gmail account. It sends the email content to OpenAI (GPT-4.1-mini), which intelligently determines whether the ...
0
Built by Eumentis Eumentis
Aug 08, 2025
Automate hyper-personalized email outreach with AI, Gmail & Google Sheets
This n8n template from Intuz provides a complete and automated solution for hyper-personalized email outreach. It powerfully combines AI with Gmail and Google Sheets, using specific keywords and pro ...
10,700
Built by Intuz Intuz
Aug 08, 2025
Flow from Reddit to Gmail with Key Features and GPT-4o Mini Usage
What it does Automatically monitors multiple subreddits daily, identifies trending posts with high engagement, and delivers AI-powered summaries directly to your inbox. Never miss important discussio ...
0
Built by Hunyao Hunyao
Aug 08, 2025
Transform Travel Photos into Narrative Stories with GPT-4O Vision
Who is this for? This workflow is designed for travel bloggers, content creators, social media managers, and anyone who wants to transform their travel photos into engaging written narratives. It's p ...
0
Aug 08, 2025
Deep Research Agent - Automated Research & Notion Report Builder
Overview This workflow acts as an AI-powered research assistant that takes a topic from the user, performs multi-step intelligent research, and stores the final report in Notion. It uses advanced s ...
0
Built by Aziz B Aziz B
Aug 08, 2025
Scan URLs for Security Threats with urlscan.io and GPT-4o mini
How it works • Webhook → urlscan.io → GPT-4o mini → Gmail • Payload example: { "url": "https://example.com" } • urlscan.io returns a Scan ID and raw JSON. • AI node classifies the ...
0
Aug 08, 2025
Beginner Manager Agent with Sub-Agent Tools
This guide walks you through building an intelligent AI Agent in n8n that routes tasks to the appropriate sub-agent using the new @n8n/n8n-nodes-langchain agent framework. You’ll create a Manager Ag ...
0
Aug 08, 2025
Beginner Outlook Calendar Summary with OpenAI
A step-by-step demo that shows how to pull your Outlook calendar events for the week and ask GPT-4o to write a short summary. Along the way you’ll practice basic data-transform nodes (Code, Filter ...
4
Aug 08, 2025
Get Started with Google Sheets in n8n
A hands-on starter workflow that teaches beginners how to: Pull rows from a Google Sheet Append a new record that mimics a form submission Generate AI-powered text with GPT-4o based on a “Topic� ...
117
Aug 08, 2025
Beginner Lead Finder Using SerpAPI Search
This n8n workflow finds experts on any topic, scrapes their websites, and pulls out contact emails automatically. Core services used: SerpAPI (google search) · Apify (website crawler) · OpenAI (GP ...
2
Aug 08, 2025
Beginner AI Dataset Generator using OpenAI + LangChain in n8n
This n8n workflow dynamically generates a realistic sample dataset based on a single topic you provide. It uses OpenAI (via LangChain) and n8n’s built-in nodes to: Generate structured JSON data for ...
16
Aug 08, 2025
Auto-publish NASA APOD to LinkedIn with AI translation and hashtags
Auto-publish NASA APOD to LinkedIn with AI translation and hashtags Transform NASA's daily astronomical wonders into engaging LinkedIn content automatically. This workflow fetches NASA's Astronomy Pic ...
0
Aug 07, 2025
Loop Over Items — Beginner Example
This workflow introduces beginners to one of the most fundamental concepts in n8n: looping over items. Using a simple use case—generating LinkedIn captions for content ideas—it demonstrates how to ...
0
Aug 07, 2025
Email parser For RAG agent Powered by Gmail and Mem0
This workflow contains community nodes that are only compatible with the self-hosted version of n8n. **Alternatively, you can delete the community node and use the HTTP node instead. ** Most email ag ...
0
Aug 07, 2025
Generate Personalized Sales Emails with MadKudu Research & OpenAI for Outreach.io Sequences
AI-Powered Email Generation with MadKudu sent via Outreach.io This workflow researches prospects using MadKudu MCP, generates personalized emails with OpenAI, and syncs them to Outreach with automatic ...
0
Built by Margo Rey Margo Rey
Aug 07, 2025
AI-Powered Automatic Analysis of YouTube Product Reviews With Apify + GPT
AI-Powered Automatic Analysis of YouTube Product Reviews With Apify This n8n workflow automates the process of searching, transcribing, and analyzing product reviews extracted from YouTube videos, ge ...
0
Aug 07, 2025