Browse 6,295 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.

6,295 workflows in Langchain
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Send weekly Meta Ads performance PDF reports with Gemini and Gmail
Quick overview This workflow runs weekly to pull Meta Ads campaign and ad-level insights from the Meta Graph API, summarizes performance, generates charts with QuickChart, asks Google Gemini for writt ...
0
Built by SPCTEK AI SPCTEK AI
Aug 11, 2026
Edit Google Sheets by chat using GPT-4o-mini with approval and audit log
Quick overview Ask your spreadsheet questions in plain language — "best month?", "revenue by country?", "rows missing an email?" — and an AI agent reads the live sheet and answers with real number ...
0
Built by Ziad Karim Ziad Karim
Aug 11, 2026
Generate website security audit PDFs with ScrapingBee, Claude, Gotenberg and Outlook
Quick overview This workflow accepts a website URL via an n8n form, scrapes the page with ScrapingBee, and uses Anthropic Claude to audit HTTP security headers and client-side vulnerabilities. It then ...
0
Aug 11, 2026
Triage support emails and draft AI replies with Gmail, Google Sheets and OpenAI
Quick overview This workflow polls a Gmail support inbox, uses OpenAI to classify each email, logs non-spam requests to Google Sheets, drafts FAQ-grounded replies back into the original Gmail thread, ...
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Built by Ziad Karim Ziad Karim
Aug 11, 2026
Engage with relevant Instagram posts using OpenAI and Postgres
Quick overview This scheduled workflow pulls Instagram influencers from Postgres, fetches each creator’s latest post via Unipile, evaluates caption and image relevance with OpenAI, and—when qualif ...
0
Aug 11, 2026
Reply to HubSpot form leads in seconds with Claude, Gmail and Slack
Quick overview This workflow listens for new HubSpot contacts created from form submissions, uses Anthropic Claude to draft a personalized first-response email, sends it via Gmail with your signature, ...
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Built by Anas Ashfaq Anas Ashfaq
Aug 11, 2026
Qualify and score real estate leads via WhatsApp, Google Gemini, and PostgreSQL
Quick overview Capture real estate leads, qualify them through an AI-powered WhatsApp conversation, score buying intent, and notify your sales team when the lead is ready for follow-up. How it works ...
0
Aug 11, 2026
Create tailored resumes from job postings with OpenRouter, Notion, and Google Drive
Quick overview This workflow takes a job-posting URL or pasted job description, validates it with an OpenRouter model, generates an evidence-based tailored resume using Notion data, and saves the resu ...
0
Aug 11, 2026
Analyze YouTube comments and generate video ideas with Gemini and Telegram
Quick overview Youtube Video: https://youtu.be/YtHfQONV4A4 This workflow accepts a YouTube video URL via Telegram, pulls the video metadata and top 100 comments using the YouTube Data API, analyzes au ...
1
Built by iamvaar iamvaar
Aug 11, 2026
Collect packaging declarations from CSV with forms, AI agents and email
Quick overview This workflow emails packaging declaration (PPWR) requests from an uploaded supplier CSV, collects supplier submissions via an n8n Form with a PDF attachment, uses agent to extract key ...
0
Aug 11, 2026
Monitor Truth Social posts for Iran-Israel risk and alert Discord with Bright Data and OpenAI
Quick overview This workflow polls a Truth Social account every minute via Bright Data, tracks the newest processed post ID in an n8n Data Table, uses OpenAI (GPT-4o-mini) to classify posts about Iran ...
0
Aug 11, 2026
Design and apply Gmail label systems with OpenAI and human approval
Quick overview This workflow samples recent Gmail inbox emails, uses OpenAI to propose a tailored Gmail label system, and requires human approval before creating labels and classifying messages, then ...
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Built by Mustapha Mustapha
Aug 11, 2026
Score inbound form leads with OpenAI and send hot leads to Slack and Sheets
Quick Overview This workflow collects n8n Form submissions, uses OpenAI (GPT-4o-mini) to score each lead from 1–10 with reasoning, posts hot leads (score ≥ 7) to Slack, and appends all scored lead ...
1
Aug 10, 2026
Expose workflow management tools over an MCP server using the n8n Public API
Quick overview This workflow exposes an MCP (Model Context Protocol) server endpoint that lets an MCP client manage workflows and executions in an n8n instance via the n8n Public API, including search ...
0
Aug 10, 2026
Summarize daily news into a Telegram Telegram digest with Gemini and Sheets
Quick overview Youtube Video: https://youtu.be/c93azOL1qTg This workflow pulls the latest headlines from multiple Google News RSS feeds, uses Google Gemini to curate and summarize them into a single d ...
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Built by iamvaar iamvaar
Aug 10, 2026
Optimize daily schedules with Groq, Google Sheets, Calendar, Gmail, and Twilio
Quick Overview This workflow uses Google Sheets, Google Calendar, Groq, Gmail, and Twilio to reset a daily routine at midnight, automatically shift tasks around new calendar meetings during the day, a ...
0
Aug 10, 2026
Send Russian joke comics to Telegram with OpenRouter and Google Sheets
Quick Overview This workflow scrapes a Russian joke from anekdot.ru, uses OpenRouter (chat + image) to turn it into a single-panel comic image, posts the image with a caption to Telegram, and tracks s ...
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Built by RenegaDe RenegaDe
Aug 10, 2026
Write weekly AI news digests with Gluecrawl and OpenAI GPT-4.1
Quick overview This workflow runs every Monday to scrape AI news from Ars Technica, VentureBeat, and The Verge using Gluecrawl, deduplicates articles in n8n Data Tables, and uses OpenAI to write a wee ...
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Built by Gluecrawl Gluecrawl
Aug 10, 2026
Triage support tickets and draft safe replies with OpenAI, Gmail, and Data Tables
Quick Overview This workflow receives support requests via a webhook, authenticates and redacts the message, matches it to a closed knowledge base, and uses OpenAI to draft a grounded reply for human ...
0
Aug 10, 2026
Triage scam messages and alert family with Claude and Google Sheets
Quick overview This workflow analyzes suspicious calls, WhatsApp messages, and emails using AI to detect scams, explain risks simply, suggest safe actions, alert trusted family members about high-risk ...
0
Aug 10, 2026