Browse 6,351 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.

6,351 workflows in Langchain
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Create Weekly Space Newsletter with NASA APIs, GPT-4 & Google Workspace
Who is it for This template is perfect for content creators, space enthusiasts, educators, and organizations who want to automatically generate and distribute engaging weekly space newsletters. It's ...
0
Built by Moka Ouchi Moka Ouchi
Nov 17, 2025
Automate School Lunch Allergy Checks with Google Sheets, Slack & AI Menu Suggestions
Who is it for? This template is designed for school nutritionists, cafeteria managers, and school administrators who are responsible for managing student dietary needs and ensuring food safety. What i ...
1
Nov 17, 2025
Multilingual Email Auto-Replies with DeepL, GPT-4o and Slack Human Approval
Who's it for Customer support teams, sales representatives, and international business professionals who need to handle multilingual email communication efficiently while maintaining quality control ...
0
Built by Asuka Asuka
Nov 17, 2025
Voice Appointment Booking & Confirmation System with Vapi, Gemini & Google Calendar
AI Voice Appointment Booking with Vapi and Google Calendar Build an intelligent appointment booking system that lets customers schedule appointments through natural voice conversations. This workflo ...
0
Nov 17, 2025
Automate Travel Expense Extraction with OCR, Mistral AI and Supabase
Travel Reimbursement - OCR & Expense Extraction Workflow Overview This is a lightweight n8n workflow that accepts chat input and uploaded receipts, runs OCR, stores parsed results in Supabase, and us ...
9
Nov 17, 2025
Generate LinkedIn Carousel Images from Text with Mistral AI & S3 Storage
AI Carousel Caption & Template Editor Workflow Overview This workflow is a caption-only carousel text generator built in n8n. It turns any raw LinkedIn post or text input into 3 short, slide-ready ti ...
20
Nov 17, 2025
Multi-Channel Feedback to Jira Pipeline with AI Analysis & Notion Reporting
Description This workflow turns scattered user feedback into a structured product backlog pipeline. It collects feedback from three channels (Telegram bot, Google Form/Sheets, and Gmail), normalizes ...
0
Nov 17, 2025
Predict and Forecast HDB Flat Prices with GPT-4o and Google Sheets Analytics
How It Works The workflow runs on a monthly trigger to collect both current-year and multi-year historical HDB data. Once fetched, all datasets are merged with aligned fields to produce a unified tabl ...
0
Nov 16, 2025
Singapore Lottery Predictive Analytics and Pattern Mining System
How It Works A scheduled trigger initiates automated retrieval of TOTO/4D data, including both current and historical records. The datasets are merged and validated to ensure structural consistency be ...
0
Nov 16, 2025
Auto Generate Descriptive Node Names with AI for Workflow Readability
⚡Auto Rename n8n Workflow Nodes with AI✨ This workflow uses AI to automatically generate clear and descriptive names for every node in your n8n workflows. It analyzes each node's type, parameters, ...
60
Built by Anan Anan
Nov 16, 2025
Predict F1 Race Winners with OpenAI GPT-4o, Historical Data & Slack Alerts
How It Works Every day at 8 AM, the workflow automatically retrieves the latest F1 data—including driver standings, qualifying results, race schedules, and circuit information. All sources are merge ...
0
Nov 16, 2025
Reduce LLM Costs with Semantic Caching using Redis Vector Store and HuggingFace
Stop Paying for the Same Answer Twice Your LLM is answering the same questions over and over. "What's the weather?" "How's the weather today?" "Tell me about the weather." Same answer, three API cal ...
1,229
Nov 16, 2025
Monitor Japan Flight Prices & Generate Booking Alerts with GPT-4o & Multi-Source Analysis
How It Works Scheduled triggers run automated price checks across multiple travel data sources. The collected data is aggregated, validated, and processed through an AI analysis layer that compares tr ...
0
Nov 16, 2025
Generate Interior Moodboards with Claude/Gemini Agents, Hugging Face Image Generation, and PDF Export
🎨 Template Overview This comprehensive n8n workflow automates the complete process of generating professional interior design moodboards from concept to client delivery. Users submit a design brie ...
0
Nov 16, 2025
Automate Reddit Monitoring with GPT-5-Mini, Notion, and Gmail
Instantly Track Reddit Discussions and Generate Insights Manually monitoring Reddit for relevant discussions can be overwhelming. This automation does all the heavy lifting by automatically searching ...
1
Built by ScoutNow ScoutNow
Nov 16, 2025
GPT-4.1-mini Powered Invoice Processing from Gmail to Google Sheets with Slack
AI-Powered Invoice Processing from Gmail to Google Sheets with Slack Approval This workflow completely automates your invoice processing pipeline. It triggers when a new invoice email arrives in Gmail ...
0
Nov 16, 2025
Personal Finance Tracker with Telegram Bot, Google Gemini Vision, and Sheets
Personal Finance AI Agent – Telegram Bot (n8n Workflow) A fully automated Telegram-based personal finance tracker that: Accepts receipts as images, PDFs, or plain text Uses Google Gemini Vision f ...
0
Nov 15, 2025
Transcribe Long Audio Files Beyond 25MB Limit with FileFlows and OpenAI Whisper
Who's it for This template is designed for content creators, podcasters, businesses, and researchers who need to transcribe long audio recordings that exceed OpenAI Whisper's 25 MB file size limit (~ ...
1
Nov 15, 2025
Transform Voice Notes into Business Reviews with Groq Whisper & GPT-5 to Google Slides
🎙️ Voice-to-Slides: Business Review Kickstarter for Customer Success This workflow helps Customer Success Managers brain dump their client knowledge via voice notes and kickstart business review ...
0
Nov 15, 2025
Auto-Generate AI Videos with Gemini, KIE AI Sora-2 & Blotato (Multi-Platform)
Overview This n8n template automates the entire process of generating short-form AI videos and publishing them across multiple social media platforms. It combines Google Gemini for structured prompt ...
0
Built by Amit Kumar Amit Kumar
Nov 15, 2025