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.
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Quick overview
This workflow polls Gmail for unread emails with PDF attachments, extracts invoice text, uses OpenAI to pull key invoice fields, and appends the results as a structured row in a Google ...
Quick overview
Most teams don't have a security reviewer on every PR. This workflow gives you one: it reads the diff, catches hardcoded secrets and risky code, posts a real GitHub status check, commen ...
Quick overview
This workflow collects a landing page URL via an n8n form, fetches the page HTML, runs two OpenAI-powered SEO audits (technical and content/keyword), generates an overall score with a Q ...
Quick overview
This workflow exposes a webhook that finds or accepts a target webpage, scrapes it to clean Markdown using Apify, and uses OpenAI with a dynamic schema to return structured JSON fields ...
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This workflow turns a Telegram bot into a conversational assistant that answers incoming chat messages using an OpenAI chat model, with optional tool use for Perplexity web search, Wiki ...
Quick overview
This workflow listens for new Facebook Messenger messages, uses OpenAI to extract the requested product and intent, checks the request against an inventory stored in Google Sheets, repl ...
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This workflow automatically classifies incoming Gmail messages, answers support questions using a Google Sheets knowledge base and Gemini, escalates unknown questions to a human expert, ...
Quick overview
This workflow runs every weekday morning, pulls the last 24 hours of original posts from a list of X (Twitter) accounts via TwitterAPI.io, uses Anthropic Claude (with a Fireworks DeepSe ...
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This workflow polls Gmail for new inbox emails, looks up the sender in Stripe to classify them as a customer or non-customer, uses OpenAI plus Google Docs playbooks to draft a reply, an ...
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Every morning, this workflow scrapes Zillow, Redfin, and international property portals for new listings in your farm area, scores each one as Hot/Warm/Cold using Gemini AI, delivers a ...
Quick overview
This workflow monitors a Google Drive folder for new audio recordings, analyzes each call with Google Gemini to extract sentiment and lead-qualification details, and appends the structu ...
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This workflow runs every 25 minutes to pull a keyword from Google Sheets, generate a Japanese SEO-ready WordPress post with OpenAI, publish it to WordPress, and then write the title, ca ...
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This workflow is called by another n8n workflow to ensure a specific n8n Data Table exists, checking existing tables first and creating the table with an OpenAI-powered agent and Data T ...
Quick Overview
This chat-based workflow uses Google Gemini and a Supabase vector store to answer electronic component questions from indexed PDF datasheets, and when information is missing it searches ...
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This workflow runs daily to fetch the latest AI stories from Hacker News (Algolia API), scrape and convert each article to text, summarize them in Russian using OpenRouter (GPT-5 with G ...
Quick Overview
This workflow receives inbound leads via a webhook, optionally fetches and cleans the company website content, uses OpenAI (GPT-4.1 mini) to qualify and score the lead and generate outr ...
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This workflow captures leads via webhooks, logs UTM-based channel attribution to Google Sheets, attributes won-deal revenue back to the original channel, and sends a monthly executive s ...
Quick overview
This workflow monitors a time-boxed event by pulling live activity across your social media from Fanbase MCP every 15 minutes, analyzing each interval with Google Gemini, storing result ...
Quick overview
This workflow automatically collects a landing page URL through a form, fetches the website content, analyzes it with an OpenAI-powered AI Agent, and returns personalized conversion rat ...
Email Automation Workflow Template
This n8n template demonstrates how to automate email classification, labeling, draft generation, and logging using Gmail, OpenAI, and Google Sheets.
Use cases inc ...
