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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AI-powered Student Assistant for Course Information via Twilio SMS
This n8n template offers a simple yet capable chatbot assistant who can answer course enquiries over SMS. Given the right access to data, AI Agents are capable of planning and performing relatively c ...
1,896
Built by Jimleuk Jimleuk
Apr 09, 2025
Build an IT Support Assistant Chatbot Leveraging Existing Support Portal
This n8n template demonstrates how you can leverage existing support site search to power your Support Chatbots and agents. Building a support chatbot need not be complicated! If building and indexin ...
4,785
Built by Jimleuk Jimleuk
Apr 09, 2025
Conversing with Data: Transforming Text into SQL Queries and Visual Curves
Conversational Data Retrieval and Visualization Workflow This workflow enables users to interact with a PostgreSQL database using natural language. It translates text inputs into SQL queries, retriev ...
2,904
Apr 09, 2025
Enhance AI Prompts with GPT-4o-mini and Telegram Delivery
Workflow Documentation Description: This workflow is designed to optimize prompts by enhancing user inputs for clarity and specificity using AI. The workflow takes a user-provided prompt as input and ...
484
Apr 09, 2025
Loading JSON via FTP to Qdrant Vector Database Embedding Pipeline
🧠 This workflow is designed for one purpose only, to bulk-upload structured JSON articles from an FTP server into a Qdrant vector database for use in LLM-powered semantic search, RAG systems, or AI ...
1,049
Apr 09, 2025
Automated LinkedIn Lead Generation, Scoring & Communication with AI-Agent
⚠️ DISCLAIMER: This workflow uses the AnySite LinkedIn community node, which is only available on self-hosted n8n instances. It will not work on n8n.cloud. Overview This workflow automates th ...
12,106
Built by Andrey Andrey
Apr 08, 2025
🧠 Build AI Agents with Think-Plan-Act Architecture Using Llama-4 Reasoning
🧠 A plug-and-play n8n workflow that adds LLM-powered reasoning, planning, and action to your automations — with prompts, schemas, and full agent logic included. Ever wish your n8n flows could ...
729
Built by Lucas Dias Lucas Dias
Apr 08, 2025
Automate Instagram Posts with Google Drive, AI Captions & Facebook API
This template streamlines your Instagram content posting workflow by connecting Google Drive for image storage, using OpenAI for AI-generated captions, and leveraging Facebook Graph API for automated ...
4,658
Built by Sagar Sagar
Apr 08, 2025
Scalable Multi-Agent Chat Using @mentions
Summary Engage multiple, uniquely configured AI agents (using different models via OpenRouter) in a single conversation. Trigger specific agents with @mentions or let them all respond. Easily scalabl ...
12,969
Built by Jon Doran Jon Doran
Apr 08, 2025
Automate WordPress Contact Form (CF7) Responses and Classification with Gemini
This workflow optimizes the management of inquiries received through a contact form (Contact Form 7 - CF7 Plugin) on a WordPress site, automating the process of classification, response drafting, and ...
1,533
Apr 08, 2025
Gumroad Clientbell: Auto-Log Sales, Ping Telegram, & Thank via Email
Who is this for? This template is perfect for Gumroad creators, solopreneurs, digital product sellers, and freelancers who want to track and thank customers automatically — without spending time o ...
874
Apr 08, 2025
🎨 AI Design Team - Generate and Review AI Images with Ideogram and OpenAI
🎨 AI Graphic Design Team - Generate and Review AI Images with Ideogram and OpenAI Description Who is this for? This workflow is perfect for graphic designers, creative agencies, marketing teams, ...
9,990
Apr 07, 2025
Adaptive RAG Strategy with Query Classification & Retrieval (Gemini & Qdrant)
This n8n workflow implements a version of the Adaptive Retrieval-Augmented Generation (RAG) framework. It recognizes that the best way to retrieve information often depends on the type of question ask ...
2,380
Built by dmr dmr
Apr 07, 2025
Classify Emails & Extract Structured Data from Job Applications with GPT-4o
Who is this template for? This workflow template is designed for business owners and HR professionals to automatically detect and structure unstructured job applications received through email. Additi ...
199
Built by Sleak Sleak
Apr 07, 2025
Automated Discord Chatbot for chat Interaction in channel using Gemini 2.0 Flash
A Discord bot that responds to mentions by sending messages to n8n workflows and returning the responses. Connects Discord conversations with custom automations, APIs, and AI services through n8n. Fu ...
1,010
Built by JPres JPres
Apr 07, 2025
Auto-Generate and Post Social Media Content to Bluesky using Groq LLM
Automatically Generate Content and Post to Bluesky with LLM Workflow Unlock the power of automation with the Automatically Generate Content and Post to Bluesky with LLM Workflow, an n8n-powered solut ...
1,216
Built by Mehdi Mehdi
Apr 07, 2025
Monitor GitHub Releases with Gemini AI Chinese Translation & Slack Notifications
Overview This n8n template monitors specified GitHub repositories. When a new release is published, it automatically fetches the information, uses AI (Google Gemini by default) to summarize and tran ...
375
Built by tbphp tbphp
Apr 07, 2025
🔊 Browser Recording Audio Transcribing and AI Analysis with Deepgram and GPT-4o
Overview Transcript Evalu8r V2 is a robust browser-based transcript analysis tool powered by Deepgram’s speech-to-text API and built into an n8n workflow template. This release introduces full in- ...
812
Apr 07, 2025
Auto-Generate YouTube Chapters with Gemini AI & YouTube Data API v3
Auto-Generate YouTube Chapters with AI-Powered Transcript Analysis Overview This workflow uses YouTube Data API v3 and Google Gemini 1.5 Flash AI to automatically generate timestamped chapters f ...
3,342
Built by irfan saeed irfan saeed
Apr 06, 2025
Manage Calendar Events with Slack Using OpenAI-Powered Outlook Assistant
This n8n template demonstrates how easy it is to build an Outlook Calendar Assistant powered by an AI agent equipped with Tools. For teams using Outlook Calendar and Slack who need easier calendar ma ...
1,102
Built by Jimleuk Jimleuk
Apr 06, 2025