Browse 7,110 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.

7,110 workflows in Langchain
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Send weekly KPI executive summaries from Google Sheets via Gemini, Gmail and Slack
Quick overview This workflow runs weekly to read KPI rows from Google Sheets, merge them with benchmark KPI data from an HTTP API, calculate week-over-week trends, generate an executive summary with G ...
0
Sep 07, 2026
Generate monthly PDF lead reports from Monday.com with Gemini and Gmail
Quick Overview This workflow runs monthly to pull items from a Monday.com board, transform and aggregate them into a dataset, generate a styled HTML-to-PDF report using Gemini via OpenRouter and PDFMu ...
0
Sep 07, 2026
Generate Google Drive invoice PDFs from plain text with OpenAI and PDFCrowd
Quick overview This sub-workflow accepts plain-text invoice details, uses OpenAI to extract and normalize invoice fields, renders a styled HTML invoice to PDF via PDFCrowd, uploads the PDF to Google D ...
0
Sep 07, 2026
Create Gmail drafts from business cards with Google Drive, Gemini, Slack and Discord
Quick overview This workflow scans business card images stored in Google Drive, uses Google Gemini Vision OCR to extract contact details, creates personalized Gmail drafts (optionally with a Drive att ...
0
Built by maruo maruo
Sep 06, 2026
Generate recipe PDFs from food photos with OpenRouter, Apify and Google Drive
Quick overview This workflow collects an image URL via an n8n form, uses OpenRouter (Google Gemini) to generate recipe text and a print-ready HTML layout, converts the HTML to a PDF using an Apify act ...
0
Sep 06, 2026
Build a Google Drive document similarity database with Ollama and Postgres
Quick overview Builds a searchable semantic similarity database from Google Drive documents using PostgreSQL, PGVector, and Ollama embeddings, then analyzes document similarity and provides interactiv ...
2
Sep 06, 2026
Gestiona reservas de restaurante por WhatsApp con Gemini y Google Sheets
Quick Overview This workflow handles restaurant reservations over WhatsApp (text or voice) using Google Gemini, storing and managing bookings in Google Sheets and Google Calendar, and sending WhatsApp ...
Detect missing alcohol test records with Gemini, Gmail, Slack and Google Sheets
Quick overview This workflow collects driver alcohol test submissions via an n8n form and stores them in Google Sheets, then runs a daily check against a roster to find missing records and uses Google ...
0
Built by sho  oda sho oda
Sep 06, 2026
Triage museum microclimate excursions with OpenAI, Jira, Slack, and Google Drive
Quick overview This workflow runs every 30 minutes to pull museum microclimate sensor readings, compare them with prior state stored in Postgres, and, for meaningful excursions, uses OpenAI to extract ...
0
Sep 06, 2026
Reply to WhatsApp leads with Google Gemini and Cal.com booking
Quick overview This workflow listens for incoming WhatsApp messages and uses Google Gemini plus optional TinyFish web research to draft concise replies, including offering and booking Cal.com meeting ...
0
Sep 05, 2026
Scan personal data in data tables with Groq and Discord alerts
Quick overview This workflow inventories personal data across n8n Data Tables by sampling rows, classifying columns with regex patterns, and using Groq to judge ambiguous columns from names and masked ...
0
Sep 05, 2026
Register GDPR Article 30 processing activities with Groq and Discord
Quick overview This workflow uses an n8n Form to capture GDPR Article 30 processing activity details, checks completeness against an editable checklist in n8n Data Tables, uses Groq to flag additional ...
0
Sep 05, 2026
Score real estate leads with Anthropic Claude and Google Sheets
Quick overview This workflow receives real estate inquiries via a webhook, uses Anthropic to extract key lead details from the message, applies a rules-based 0–100 scoring matrix, and appends the sc ...
0
Built by Nivren Nivren
Sep 05, 2026
Red-team AI agents with jailbreak probes using Groq, Discord, and data tables
Quick overview This workflow red-teams an AI agent by replaying stored jailbreak and safety probes against a Groq-hosted model, scoring behavior from tool calls and responses, saving results to n8n Da ...
0
Sep 05, 2026
Post witty daily tweets with Groq, NewsAPI, Google Trends, and X
Quick overview This workflow runs daily on a schedule, pulls popular stories from NewsAPI and trending topics from Google Trends, uses Groq-hosted LLMs with short-term memory to pick the best overlapp ...
0
Built by Akshat Akshat
Sep 05, 2026
Watch web pages for plain-language conditions with Gemini, Sheets and Gmail
Quick overview You know the page and you know what you are waiting for: a room, a campsite, an admissions notice. Write the URL and the condition in one sheet row. Gemini reads the page on your schedu ...
0
Built by ayumi ayumi
Sep 05, 2026
Screen GDPR DPIA needs with Groq, n8n forms, data tables and Discord
Quick overview This workflow collects GDPR processing details via an n8n Form, scores them against editable DPIA screening criteria stored in n8n Data Tables, uses Groq to validate additional criteria ...
0
Sep 05, 2026
Triage AWS security posture changes with Claude, Slack, email, and WhatsApp alerts
Quick overview Automated AWS security posture triage: detects changes in security findings, enriches with asset context, uses Claude to assess risk severity, then routes critical cases for manager app ...
0
Sep 05, 2026
Assess AWS security posture changes with Claude and Slack alerts
Quick overview This workflow polls or manually checks AWS security findings via HTTP endpoints, compares them to a stored baseline, enriches changes with asset inventory data, uses Anthropic Claude to ...
0
Sep 05, 2026
Monitor viral competitor Instagram posts with Apify, Groq, Google Sheets and Slack
Quick overview Every morning this workflow reads the newest posts from the competitor accounts you name, works out which ones beat that account's own normal engagement, has an AI read the caption, app ...
0
Built by Steadyfetch Steadyfetch
Sep 05, 2026