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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Reconcile Google Drive invoice PDFs with OpenAI, Sheets, Slack and Gmail
How it works Watches a Google Drive folder and triggers automatically when a new invoice PDF is uploaded Extracts raw text from the PDF and passes each invoice through an OpenAI powered agent that re ...
0
May 20, 2026
Invoice Reconciliation Automation
How it works Watches a Google Drive folder and triggers automatically when a new invoice PDF is uploaded Extracts raw text from the PDF and passes each invoice through an OpenAI powered agent that re ...
0
May 20, 2026
Batch Ad Banner Generator with gpt-image-2 and Sharp
This workflow automates batch ad banner production from existing source images. It is designed for teams that already store campaign source images in Google Drive and want to generate multiple ad for ...
0
Built by Leo Wood Leo Wood
May 20, 2026
Triage customer support tickets from Gmail and forms with OpenAI, Slack and Sheets
How it works Listens for new support requests from Gmail and a web form simultaneously, normalizing both into a single ticket schema Routes each ticket through an OpenAI powered triage agent that cla ...
0
May 20, 2026
Generate short-form social videos with Claude, ElevenLabs, Creatomate and Google Drive
Overview Stop recording, editing, and posting manually. This workflow takes any topic or idea as input, uses Claude to write a punchy short-form script, ElevenLabs to generate a natural voiceover, and ...
1
Built by Akshay Chug Akshay Chug
May 19, 2026
Investigate CI/CD incidents in Slack with a GPT-5.5 AI agent
Overview It is a sub-workflow that investigates CI/CD failures reported by engineers in Slack. It is invoked by a parent classifier and it runs an autonomous AI Agent that diagnoses the failing pipeli ...
0
May 19, 2026
Classify and route DevOps support messages with Slack and GPT-5.5
Overview Receives messages to technical support and classifies them. Requirements OpenRouter/OpenAI/Anthropic API key Google Gemini API key — for embeddings (models/gemini-embedding-2-preview) used ...
0
May 19, 2026
Summarize Zoom meetings and create tasks with Claude, ClickUp, Calendar, Slack, and Sheets
Description Activate this workflow once and every day at 9AM it automatically processes all Zoom meetings from the past 24 hours — no manual action needed after any call. For each recorded meeting, ...
1
Built by isaWOW isaWOW
May 19, 2026
Generate SEO blog drafts from Google Sheets to WordPress with OpenAI
Description Generate SEO-friendly WordPress blog drafts from a Google Sheets queue using OpenAI. This workflow writes full HTML blog content, selects a relevant Pexels featured image with a second AI ...
0
May 19, 2026
Send Stripe purchase templates from Google Drive via Gmail and Discord
Who it's for This workflow is for indie creators, automation agencies, and digital product sellers who sell n8n workflow templates (or any downloadable file) through Stripe and want to automate post- ...
0
May 19, 2026
Generate client-ready workflow diagrams from sales call transcripts with Claude
Who it's for This workflow is for automation agencies and n8n consultants who conduct discovery calls with prospects and want to instantly turn conversation transcripts into polished, client-ready wo ...
0
May 19, 2026
Generate weekly Instagram Reels ideas from Google News with OpenAI and Notion
This n8n workflow automatically generates weekly Instagram Reel content ideas for a D2C brand using fresh Google News trends. In this example, the workflow is configured for a skincare brand called G ...
1
May 19, 2026
Analyze YouTube comments with OpenAI and send reports via email and chat
Who it's for This advanced n8n workflow is designed for YouTube content creators, social media managers, digital marketers, and agency owners who need a deep, automated understanding of their video pe ...
0
May 19, 2026
Classify Gmail emails with OpenAI and Telegram feedback
An AI-powered Gmail assistant built with n8n that automatically labels emails, learns from your decisions, and safely improves over time using human-in-the-loop training. This workflow combines: Gma ...
0
May 19, 2026
Summarize article URLs with Google Gemini AI from WordPress and blogs
This n8n template automates the extraction and summarization of long-form articles, blogs, or WordPress posts using an interactive Chat Interface and Gemini AI. If you like staying informed but want ...
Manage Gmail and Google Calendar with a multi-agent executive assistant (GPT-4o)
This workflow turns n8n into a smart, conversational personal assistant. Think of it as a digital manager for your daily work life. It can read your emails, write out message drafts, check when you ar ...
0
May 18, 2026
Create LinkedIn carousel PDFs with GPT-4o-mini and Google Drive
Description Submit your carousel topic, brand name, target audience, tone, and number of content slides via a simple form and the workflow generates a complete LinkedIn carousel PDF automatically. GP ...
0
May 18, 2026
Create Facebook posts and images with Google Gemini and Facebook Graph API
This n8n template automates the creation of professional Facebook posts and visually striking illustrations directly from simple raw text. If you want to maintain a consistent social media presence ...
Generate a weekly business metrics report with Stripe, Notion, Sheets, Claude, SendGrid, and Slack
Stop compiling your weekly business report by hand. Let automation pull the numbers, and let Claude write the narrative. Every Monday morning, this workflow fetches last week's revenue from Stripe, p ...
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May 18, 2026
Extract and classify legal documents with Claude Sonnet and Google Sheets
Stop treating document review as a manual task. Let AI extract, classify, and route every contract, invoice, and NDA automatically. Legal and financial document review is slow, inconsistent, and expe ...
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May 18, 2026