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.
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Quick overview
This workflow ingests supplier invoice images from Google Drive, uses OpenAI GPT-4o to extract normalized ingredient unit prices into Google Sheets, then runs a weekly margin check by c ...
Quick overview
This workflow monitors new Google Business Profile reviews, uses OpenAI to draft replies and tag a single root-cause category, routes complaint replies to Slack for approval, logs every ...
Triage support emails and schedule SLA tasks with Gmail, Gemini, Google Calendar, Sheets and Discord
Quick Overview
This workflow monitors Gmail for unread emails with the subject “Inquiry Received”, uses Google Gemini to classify and summarize each inquiry, calculates an SLA deadline, creates a ...
Quick Overview
This workflow audits inventory and open purchase orders in Google Sheets, calculates reorder quantities based on measured demand and lead times, and emails purchase orders via Gmail wit ...
Quick overview
This workflow adds real-estate leads to a 5-touch Gmail drip campaign, uses Google Gemini to generate and classify all five emails upfront, sends them automatically on schedule, detects ...
Quick overview
This workflow collects process-server attempt logs via an n8n form, updates a case tracker in n8n Data Tables, classifies field notes with OpenAI, escalates eligible cases for attorney ...
Quick overview
This workflow exposes a header-authenticated webhook API that simulates the SEO traffic impact of merging, creating, or removing pages using baseline metrics from Postgres, then generat ...
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This workflow receives scale calibration results via webhook, calculates NIST Handbook 44-style tolerance deviations, uses OpenAI to classify each device outcome, and routes compliant, ...
Quick overview
This workflow receives operations requests via webhook, uses Jev (TypeSafe) to classify and evaluate them, logs outcomes to Google Sheets, and notifies teams via Gmail and Telegram, the ...
Quick overview
This workflow runs every 5 minutes to fetch NASA DSN status, NASA DONKI CME events, NOAA GOES X-ray flux, and NASA NeoWs near‑Earth object data, then uses an OpenRouter-hosted LLM to ...
Quick overview
This workflow monitors Gmail and a Google Drive folder for new invoice/receipt files, uses Google Gemini to extract structured invoice data and classify expense categories, logs results ...
HOA architectural requests that no longer disappear into an inbox. This workflow takes each homeowner change request through an n8n Form, has AI summarize and flag it for the board, logs everything in ...
Quick Overview
This workflow runs every four hours to search Reddit, Hacker News, and Google News (via Serper) for mentions of your brand and competitors, uses OpenAI to analyze sentiment and crisis l ...
Quick overview
Ask a question in chat and get an answer that survived review: one model drafts it, a second challenges it, and a third rules on the result, either approving the answer or replacing it ...
Quick overview
This weekly workflow pulls page-and-query performance from Google Search Console, identifies URLs with high impressions but near-zero clicks, classifies the likely cause based on averag ...
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This workflow lets you generate SubmitRax form HTML via an Anthropic Claude agent (using the SubmitRax MCP server) and then publish the form as an HTML file to a GitHub Pages repository ...
Quick overview
This workflow monitors an RFI Gmail inbox, uses OpenAI to classify and extract RFI details (including PDF text), logs everything to n8n Data Tables, routes new questions to the design t ...
Quick overview
Youtube Video: https://youtu.be/Bn1u3pc0Lpo
This workflow checks a Google Sheets attendance tracker every day and messages parents of absent students via WhatsApp, then uses Google Gem ...
Quick overview
Youtube Video: https://youtu.be/0B5IAirPe5o
This workflow captures vehicle inquiries via an n8n Form, looks up inventory details in Google Sheets, uses Google Gemini with Redis chat mem ...
Quick overview
This workflow runs on a daily schedule, reads invoice PDFs from a local folder, extracts structured invoice data with OpenAI (gpt-4o-mini), validates required fields and subtotal math, ...
