Browse 6,296 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.

6,296 workflows in Langchain
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Generate & Optimize Brand Stories with Ollama LLMs and Google Sheets
Overview This n8n automation template allows marketers, branding teams, and creative professionals to auto-generate, evaluate, and iteratively optimize brand stories using Ollama-hosted LLMs and LangC ...
146
Jun 07, 2025
Extract Invoice Data from PDFs with AI - Google Sheets Email Alerts
Built by Setidure Technologies This smart n8n automation extracts invoice details from PDF files uploaded to Google Drive using AI, logs them to a Google Sheet, and notifies the billing team via email ...
657
Jun 07, 2025
Automate Sleep Meditation Content Creation with ElevenLabs V3 & DeepSeek AI
Need help? Want access to this workflow + many more paid workflows + live Q&A sessions with a top verified n8n creator? Join the community Automate the production of ad-friendly meditation content� ...
240
Built by David Ashby David Ashby
Jun 07, 2025
AI-Powered Interview Preparation System using Local LLM for Campus Placements
Overview An AI-powered, end-to-end interview preparation and mentoring automation system for campus placements. It enables placement cells to generate hyper-personalized 4-page interview preparation P ...
149
Jun 07, 2025
Gmail Customer Support Auto-Responder with Ollama LLM and Pinecone RAG
Gmail Customer Support Auto-Responder with Ollama LLM and Pinecone RAG Built by Setidure Technologies Automate intelligent, friendly replies to customer queries using AI, vector search, and Gmail � ...
392
Jun 07, 2025
Perplexity-Style Iterative Research with Gemini and Google Search
AI Comprehensive Research on User's Query with Gemini and Web Search What is this? Perform comprehensive research on a user's query by dynamically generating search terms, querying the web using Goog ...
485
Jun 07, 2025
🚚 CO2 emissions of freight shipments with Carbon Interface API and GPT-4o
Tags*: Sustainability, Supply Chain, AI Agent, CO2 Emissions, Carbon Interface API, Logistics, Automation Context Hi! I’m Samir — a Supply Chain Engineer and Data Scientist based in Paris, and f ...
324
Built by Samir Saci Samir Saci
Jun 07, 2025
✈️ CO2 emissions of business travels with Carbon Interface API and GPT-4o
Tags*: Sustainability, Business Travel, Carbon Emissions, Flight Tracking, Carbon Interface API Context Hi! I’m Samir, a Supply Chain Engineer and Data Scientist based in Paris, and founder of Log ...
324
Built by Samir Saci Samir Saci
Jun 07, 2025
Chat with PDF / MD / Text Files using GraphRAG (no vector store needed)
Set up a chat with your documents without the complex vector store setup. This templates helps you ingest** your PDF / text / MD documents into a knowledge graph use the graph as the knowledge base ...
1,953
Built by InfraNodus InfraNodus
Jun 07, 2025
Post AI Videos to YouTube with Fal AI Veo3, Google Sheets, and YouTube API
Auto-Post Veo3 Videos on YouTube An automated workflow for creating Veo3 videos and posting them to YouTube. YT Tutorial: https://youtu.be/DXM1VA-vDX4 Workflow Overview The workflow is divided in ...
854
Built by Ari Nakos Ari Nakos
Jun 07, 2025
♻️ AI multi-stop planner for circular logistics with GPT-4o & Open Route API
Tags*: AI Agent, Supply Chain, Logistics, Circular Economy, Route Planning, Transportation, GPS API Context Hi! I’m Samir — a Supply Chain Engineer and Data Scientist based in Paris, and founder ...
1,265
Built by Samir Saci Samir Saci
Jun 07, 2025
Ai email auto-responder system- AI RAG agent for email inbox
AI Email Auto-Responder – Smart Client Reply Automation with RAG This workflow is built for individuals, teams, and businesses that receive regular inquiries via email and want to automate response ...
947
Built by LukaszB LukaszB
Jun 06, 2025
Binance SM 1day Indicators Tool
This advanced agent analyzes long-term price action in the Binance Spot Market using 1-day candles. It calculates key macro indicators like RSI, MACD, BBANDS, EMA, SMA, and ADX to identify high-confid ...
680
Jun 06, 2025
Binance SM 4hour Indicators Tool
A medium-term trend analyzer for the Binance Spot Market that leverages core technical indicators across 4-hour candle data to provide human-readable swing-trade signals via AI. 🎥 Watch Tutorial: ...
705
Jun 06, 2025
Binance SM 1hour Indicators Tool
🧪 Binance SM 1hour Indicators Tool A precision trading signal engine that interprets 1-hour candlestick indicators for Binance Spot Market pairs using a GPT-4.1-mini LLM. Ideal for swing traders s ...
743
Jun 06, 2025
Binance SM 15min Indicators Tool
A short-term technical analysis agent for 15-minute candles on Binance Spot Market pairs. Calculates and interprets key trading indicators (RSI, MACD, BBANDS, ADX, SMA/EMA) and returns structured summ ...
956
Jun 06, 2025
Binance SM Price-24hrStats-OrderBook-Kline Tool
A powerful sub-agent that collects real-time market structure data from Binance for any trading pair — including price, volume, order book depth, and candlestick snapshots across multiple timeframes ...
730
Jun 06, 2025
Get Binance Spot Market Financial Analysis via Telegram with GPT-4o
This workflow powers the Binance Spot Market Quant AI Agent, acting as the Financial Market Analyst. It fuses real-time market structure data (price, volume, kline) with multiple timeframe technical i ...
1,320
Jun 06, 2025
Analyze Crypto News Sentiment for Any Token with GPT-4o and Telegram Alerts
A sentiment intelligence sub-agent for the Binance Spot Market Quant AI Agent. It aggregates crypto news from major sources, filters by token keyword (e.g., BTC, ETH), and produces a Telegram-ready su ...
3,553
Jun 06, 2025
Binance Spot Market Quant AI Agent | GPT-4o + Telegram (Main Interface)
A professional-grade AI automation system for spot market trading insights on Binance. It analyzes multi-timeframe technical indicators, live price/order data, and crypto sentiment, then delivers full ...
3,527
Jun 06, 2025