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
Nodes: Sort: Date:
Classify LinkedIn posts as quality or slop with OpenAI and Qdrant
Purpose This workflow is the official backend for the StopSlopIn Chrome extension โ€“ it classifies LinkedIn posts as quality or slop using a strict LLM quality gate and learns from user votes over t ...
0
Built by Mario Mario
Apr 22, 2026
Generate AI ads from website and images with Claude and NanoBanana
Generate AI ad creatives from website, logo, and product image with Claude + NanoBanana Who is this for? This workflow is designed for marketers, founders, agencies, and content teams who want to ge ...
0
Built by Blumpo Blumpo
Apr 22, 2026
Track Facebook mention sentiment with Gemini, Supabase, Telegram and Slack
Facebook Mention Sentiment Tracker with Gemini, Supabase, Telegram & Slack This workflow automatically tracks Facebook page mentions, analyzes sentiment using AI (Gemini), stores the data in Supabase ...
0
Apr 22, 2026
Automate vehicle insurance claim approvals with OpenAI, OCR and PDF API Hub
This workflow automates the full lifecycle of a vehicle insurance claim โ€” from an incoming Gmail email to a signed, watermarked PDF decision letter delivered back to the claimant. It monitors Gmail ...
0
Apr 22, 2026
Generate YouTube scripts and full SEO package with GPT-4o-mini and Gmail
Description Submit your video topic, target audience, video length, and tone of voice using a simple form and two sequential AI agents do the rest. The first writes a complete structured video script ...
0
Apr 22, 2026
Filter AI slop from your LinkedIn feed (backend for StopSlopIn Chrome extension)
Purpose This workflow is the official backend for the StopSlopIn Chrome extension โ€“ it classifies LinkedIn posts as quality or slop using a strict LLM quality gate and learns from user votes over t ...
0
Built by Mario Mario
Apr 22, 2026
AI-powered system for Creating & Executing your own Claude Skills ๐Ÿคน with GitHub
This workflow implements an advanced AI-powered system for generating, and executing Claude Skills stored on GitHub. When creating a skill, the workflow: Uses an AI agent to generate a properly stru ...
0
Apr 22, 2026
Organize Gmail inbox with Groq AI, Google Sheets and Google Tasks
Smart Inbox Organizer using Gmail, Groq AI, Google Sheets & Google Tasks This workflow automatically organizes your Gmail inbox using AI. It reads every incoming email, classifies it into Work, Perso ...
0
Apr 22, 2026
Send AI savings nudges from Google Sheets with Gmail and Gemini
Goal-Based Savings Tracker with Email Nudges > n8n, Google Sheets & Gemini AI This workflow automates goal-based savings tracking by pulling user data from Google Sheets, calculating progress and ...
0
Apr 22, 2026
Instagram AI Tracker โ€” Automate Reels Analysis & Growth
This workflow enables the automatic and regular tracking of competitors' Instagram Reels, providing rich insights for each video (summary, topic, hook, angles, tags, etc) through ChatGPT, and storing ...
0
Built by pei5 pei5
Apr 22, 2026
Scan incoming Gmail attachments for threats with VirusTotal and GPT-4o-mini
Who's it for Small teams, solo operators, and security-conscious individuals who receive email attachments from external senders. Useful for freelancers, agencies, HR teams, and anyone handling CVs, ...
0
Built by Ayaka Sato Ayaka Sato
Apr 22, 2026
Draft and approve client portfolio emails with Gemini, Sheets, Slack and Gmail
AI-Powered Wealth Management: Automated Client Portfolio Update & Advisor Approval This n8n workflow automates the transition from raw financial trade data to professional client communication. It mo ...
0
Apr 21, 2026
Automate TikTok and Instagram trend videos with Claude, Seedance 2.0 and Blotato
๐Ÿ’ฅ TikTok Viral Trend Detector โ†’ Seedance 2.0 โ†’ Auto-Publish with Blotato ๐Ÿ“„ Documentation: Notion Guide Who is this for? This workflow is built for content creators, social media managers, ...
0
Built by Dr. Firas Dr. Firas
Apr 21, 2026
Generate multi-agent AI research reports with OpenAI and Google Sheets
This workflow deploys multiple independent AI research agents that work in parallel, critique each other's findings, and synthesize a unified high-quality final report. Who's it for โ€ข Researchers n ...
0
Apr 21, 2026
Analyze UX heuristics from UI screenshots with GPT-4 Vision and Google Sheets
This workflow evaluates website or app screenshots against established UX best practices (Nielsen's 10 Heuristics, WCAG accessibility guidelines, and mobile usability standards) and delivers prioritiz ...
0
Apr 21, 2026
Match brands with influencers using GPTโ€‘4.1, Google Sheets and SendGrid
This workflow automatically matches brands with high-converting influencers by analyzing audience insights, engagement patterns, niche alignment, and historical conversion metrics โ€” then delivers a ...
0
Apr 21, 2026
Predict churn risk and trigger retention actions with OpenAI and Google Sheets
This workflow automatically ingests real-time user behavior events, detects drop-off points across the customer journey, predicts churn risk using AI, and triggers targeted retention actions while log ...
0
Apr 21, 2026
Create daily Facebook posts from Google Sheets with GPT-4o-mini and Ideogram
Description Set up your keyword schedule once in a Google Sheet and the workflow publishes daily Facebook posts automatically every morning at 6AM. For each keyword scheduled for today, it generates ...
0
Built by isaWOW isaWOW
Apr 21, 2026
Scan biotech news for catalyst trades with FinBERT, Alpaca, and Gemini
Automatically scan major financial newswires for biotech catalyst events, score them with AI sentiment analysis, and surface ranked trade candidates โ€” all without manual monitoring. Who's it for Tr ...
0
Apr 21, 2026
Analyze real estate deals using Google Sheets, Groq AI, and Gmail
Real Estate Deal Analyzer using Google Sheets, AI (Groq) and Gmail This workflow automates real estate investment analysis using Google Sheets and AI. It calculates ROI and rental yield, detects dupl ...
0
Apr 21, 2026