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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Write Upwork proposals from Vollna alerts using Claude, Gmail and Sheets
Overview Stop spending 20 minutes writing each Upwork proposal from scratch. This workflow reads your Vollna job alert emails, scores every job against your skills and budget preferences, and uses Cl ...
0
Built by Akshay Chug Akshay Chug
May 18, 2026
Aggregate SAP news, score with OpenAI, and post summaries to Microsoft Teams
SAP news aggregator with AI-based scoring and Teams connection How it works Triggers to initiate workflow from various sources. Configures settings and prepares feed list for processing. Iterates th ...
9
May 17, 2026
Qualify and call back inbound leads with OpenAI, Bland AI, Airtable and SendGrid
Qualify and Call Back Inbound Leads with OpenAI, Bland AI, Airtable & SendGrid This n8n template demonstrates how to capture inbound leads from a form, qualify them with OpenAI, and route the hottest ...
0
Built by Abi Odedeyi Abi Odedeyi
May 17, 2026
Chat with your business knowledge base using Google Gemini and Qdrant
This comprehensive Retrieval-Augmented Generation (RAG) system enables businesses to effectively manage and query their knowledge base. Users can seamlessly upload documents via a web form, automati ...
Book HVAC service appointments via WhatsApp with GoHighLevel and Gemini
Youtube Video For Workflow Explanation: https://youtu.be/3VTYQU7N6uU This workflow operates as an automated WhatsApp customer service and booking chatbot for an HVAC company (Blankarray HVAC Solutio ...
0
Built by iamvaar iamvaar
May 17, 2026
Summarize webpage content with OpenAI GPT-5-mini and 24h caching
This workflow summarizes the content of a webpage from a provided URL. It can optionally target a specific part of the page using a CSS selector, then uses an AI summarization chain to generate a conc ...
0
Built by Wetomate AI Wetomate AI
May 17, 2026
Triage GitHub issues to a Notion board with Qwen via OpenRouter
WHAT IT DOES When a new issue is opened on a GitHub repository, this workflow uses an AI model to classify it by type (bug, feature, question, documentation, other), assign a priority level (high, me ...
0
May 16, 2026
Turn Telegram voice messages into Gmail emails and Google Calendar events with Whisper and Ollama
This workflow is an AI-powered voice assistant that transforms natural language voice or text inputs into actionable productivity tasks such as professional emails and calendar events.Built using Whis ...
1
May 16, 2026
Send a daily AI news digest using Google News, GPT-4o-mini, Sheets and Gmail
Description Add your news topics to a Google Sheet once — with keywords, article limits, and an Active toggle — and every morning at 7AM a personalized news digest lands in your inbox automatical ...
0
May 16, 2026
Discover and save niche web content to Google Sheets with Kagi and OpenRouter AI
Discover and save niche web content to Google Sheets with Kagi and AI How it works A webhook trigger receives a request. The Kagi API token is set and a request is made to Kagi’s enrich endpoint. ...
0
Built by Fujii Ryota Fujii Ryota
May 16, 2026
Build a RAG document chatbot with Supabase vector search and OpenRouter
What this workflow does This workflow builds a Retrieval-Augmented Generation (RAG) document chat assistant inside n8n using Supabase Vector Store and AI models. The workflow allows users to upload ...
0
May 16, 2026
Turn RSS feed content into AI avatar videos with HeyGen, Claude, and PostPulse
How it works This workflow takes content from an RSS feed, turns it into script with Anthropic's Claude, turns script into AI avatar videos using HeyGen's create video endpoint, retrieves the generat ...
0
May 16, 2026
Fetch live commodity quotes with Octagon, OpenAI (GPT-5.4 Mini) and Google Sheets
Quick overview Automatically fetches live commodity quotes (gold, silver, crude oil, natural gas, and more) using an Octagon AI Agent, then writes prices, changes, ranges, volume, and moving averages ...
7
Built by Octagon Octagon
May 15, 2026
Monitor suspicious transactions using Google Sheets, Groq AI and Gmail alerts
Transaction Monitoring Workflow > n8n, Google Sheets, Groq AI & Gmail Alerts This workflow automatically monitors daily transactions stored in Google Sheets, detects suspicious activity based on ...
0
May 15, 2026
Build a RAG chatbot using Google Gemini and a Supabase vector store
🧠 AI Chatbot with RAG: Google Gemini & Supabase Vector Store 📌 Summary Build a custom, intelligent knowledge base in minutes. This n8n workflow provides a complete Retrieval-Augmented Generati ...
0
May 15, 2026
Generate podcast show notes and timestamps with WayinVideo and GPT-4o-mini
Description Submit any podcast episode recording URL along with the episode number, podcast name, host name, episode topic, niche, and CTA link — and optionally a guest name and title if it is an i ...
0
Built by isaWOW isaWOW
May 15, 2026
Sync Stripe payments to GoHighLevel with GPT-4o email, Slack, and Sheets logging
Who It's For Agencies, service businesses, and GoHighLevel users who want to automatically update their CRM, notify their team, and send a professional invoice to the customer the moment a Stripe paym ...
0
Built by Andrew Andrew
May 14, 2026
Send GPT-4o follow-up emails to leads and detect replies with Gmail
Who It's For Sales teams, agencies, and service businesses that follow up with inbound leads via email and want to automate the entire sequence without losing the personal touch. How It Works Webhook ...
0
Built by Andrew Andrew
May 14, 2026
Extract and log Outlook invoices to OneDrive Excel with GPT-4.1-mini
Quick overview Automatically extract, log, and archive emailed invoices using GPT-4.1-mini, OneDrive, and Excel. Designed for small business owners, finance teams, and operations managers, this Micros ...
47
May 14, 2026
Publish LinkedIn posts from RSS using Ollama, PostgreSQL and Telegram approval
This workflow automatically converts incoming RSS/news articles into structured, AI-enriched content records. It uses a local AI model to summarize articles, extract metadata, and classify content bef ...
0
May 14, 2026