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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Create Instagram carousel posts using GPT-4.1 Nano and Gemini 2.5 Flash
Tired of manually creating Instagram carousel content? This workflow takes a single content idea from a database, uses GPT-4.1 Nano + Gemini 2.5 Flash to generate unique images and captions, uploads t ...
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Apr 25, 2026
Generate and publish SEO blog posts from Google Sheets to Webflow with OpenAI
Who it's for This n8n workflow is designed for SEO managers, content creators, and blog administrators who want to automate their blog publishing pipeline. The workflow creates an end-to-end AI-powere ...
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Apr 25, 2026
Score and route BANT-qualified leads using Gemini, Gmail, Google Sheets and Telegram
built by Gurey AI Qualify and route leads automatically with BANT scoring and Gmail following up on every lead by hand is slow, inconsistent, and lets good opportunities slip. by the time you read a ...
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Apr 25, 2026
Detect client portfolio news impact with Gemini AI, Gmail, and Google Sheets
Client Portfolio News Impact Detection with AI & Gmail This workflow automatically fetches the latest business news, analyzes its impact on clients using AI and sends alerts for high-impact articles ...
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Apr 25, 2026
Detect Bitcoin price spikes and send Gemini-powered NewsAPI Gmail alerts
Bitcoin Price Spike Detector with Gemini AI, NewsAPI & Gmail Alerts This workflow monitors Bitcoin price changes every 30 minutes. If the price increases or decreases by 3% or more, it fetches recent ...
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Apr 25, 2026
Index n8n workflows and enable semantic AI search with OpenAI and Supabase
n8n Workflow Intelligence (RAG): Auto Indexing & Semantic AI Search with Supabase Vector DB This workflow automatically indexes your n8n workflows every 24 hours, converts them into vector embeddings ...
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Apr 25, 2026
Generate Gmail reply drafts with GPT-4o, pgvector, and PostgreSQL
Email Automation — AI Draft Generator n8n Workflow Template 📘 Description This workflow is the core of a three-part email automation system. It monitors your Gmail inbox in real time, classifie ...
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Apr 24, 2026
Build a support knowledge base from historical Gmail emails with OpenAI and PostgreSQL
KB Builder — Historical Emails n8n Workflow Template 📘 Description This workflow automates the process of building a structured Knowledge Base (KB) from your existing Gmail inbox by processing ...
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Apr 24, 2026
Enrich company leads and find HR contacts with Google Sheets, OpenAI and LinkFinder AI
Description This workflow is Part 2 of the HR Client Acquisition system and builds on the lead discovery pipeline from the previous workflow: 🔗 HR Client Acquisition (Part 1) – Job Lead Discove ...
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Apr 24, 2026
Create a personal property inventory with Notion and Anthropic Claude
What it does An AI model identifies, describes, and give an estimated value range of a personal property item based on pictures of the item. How it works One of more images, and an optional descripti ...
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Apr 23, 2026
Research web content with Claude Opus 4.7 and Bright Data to post Slack reports
How it works A form collects a research goal and target audience from the user An AI agent (Claude Opus 4.7) plans the research and calls Bright Data's Web Unlocker to scrape Google results and sourc ...
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Apr 23, 2026
Generate LinkedIn and Twitter posts from Telegram voice replies with GPT-5 and Google Sheets
Created by Gurey AI Generate LinkedIn & Twitter Posts from Telegram Voice Replies with GPT-5 staying consistent with personal brand content is hard when you're running everything yourself. you know ...
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Apr 23, 2026
Generate tailored CV and Cover Letter from job links
How it works This Workflow automatically creates a new CV and Cover Letter based on the job description and your Current CV. How to set it up Create API keys for Google sheet Link, Google Docs Link a ...
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Apr 23, 2026
Score daily viral YouTube Shorts ideas using Reddit, RSS, and DeepSeek AI
AI Virality Scoring Engine: Channel Intelligence Extraction & Trend Harvesting This workflow demonstrates how to combine trend harvesting, channel intelligence, and AI scoring to select the best dail ...
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Apr 23, 2026
Triage GitHub issues with OpenAI categorization and embedding-based duplicate detection
Who's it for Open-source maintainers, product teams with public repositories, and any organization receiving a steady stream of GitHub Issues. Ideal for small teams who waste hours per week triaging ...
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Built by Ayaka Sato Ayaka Sato
Apr 23, 2026
Generate SEO Content with Claude AI, Competitor Analysis & Supabase RAG
SEO Content Generation Workflow - n8n Template Instructions Who's it for This workflow is designed for SEO professionals, content marketers, digital agencies, and businesses who need to generate opt ...
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Apr 23, 2026
Automatically sort stucco leads by SLA priority in NinjaPipe with StuccoOS
Who is it for This is built for the plastering and stucco owners who are out on the tools while the partner (the 'Patricia' of the business) tries to keep the admin from exploding. It's for anyone los ...
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Apr 22, 2026
Enrich new Airtable leads from LinkedIn using Bright Data, GPT-5-mini and Slack
What this workflow does Automatically enriches every new LinkedIn lead added to your Airtable base with AI-structured data and notifies your team in Slack. How it works Airtable Trigger polls for n ...
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Apr 22, 2026
Sort and manage your Gmail inbox with Vertex AI and Google Tasks
AI Gmail Manager: Sort, Draft & Summarize Transform your chaotic inbox into a streamlined productivity hub! This advanced n8n workflow acts as your personal AI executive assistant. It automatically r ...
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Built by Raphael Raphael
Apr 22, 2026
Generate a Google Ads keyword plan from seed keywords with Keyword Planner and OpenAI
Who is this template for? This workflow is built for digital marketers, SEO/PPC specialists, and business owners who run or plan Google Ads campaigns and need a fast, structured way to discover and e ...
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Apr 22, 2026