Browse 6,280 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.

6,280 workflows in Langchain
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Fix striking distance SEO keywords with Google Search Console, Bright Data, GPT-5.6 and Slack
Quick overview This workflow runs weekly to pull striking-distance query/page pairs from Google Search Console, uses Bright Data to find and read higher-ranking rival pages, asks OpenAI (GPT-5.6) to i ...
0
Aug 17, 2026
Send website security audit reports with OpenAI, Gotenberg, and Outlook
Quick Overview This workflow collects a landing page URL via an n8n form, fetches the page HTML and HTTP response headers, uses OpenAI (GPT-4.1) to audit client-side security issues and header configu ...
0
Aug 17, 2026
Manage short-term rental guest messages and cleaning tasks with Deepseek and Google Sheets
Quick Overview This workflow captures short-term rental bookings via webhook, stores them in Google Sheets, and uses OpenAI (Deepseek model) to draft and send timed guest emails via Gmail using a prop ...
0
Aug 17, 2026
Send donor thank-you receipts and weekly digests with Google Sheets, DeepSeek, Gmail and Telegram
Quick Overview This workflow watches a Google Sheets donations log, validates new entries, uses DeepSeek (via the OpenAI API) to draft personalized thank-you emails with receipt details, and sends the ...
0
Aug 17, 2026
Respond to Google reviews and send weekly digests with DeepSeek, Sheets, Discord and Gmail
Quick Overview This workflow receives customer reviews via webhook, uses DeepSeek (via OpenAI) to draft reply text, logs everything to Google Sheets, and notifies your team in Discord and Gmail; it al ...
0
Aug 17, 2026
Log and report construction punch list items with OpenAI, Google Sheets, Gmail and Telegram
Quick Overview This workflow accepts construction punch list messages via a webhook, uses OpenAI plus a Google Sheets trade roster to structure and route each item, logs it to Google Sheets, emails th ...
0
Aug 17, 2026
Plan daily restaurant prep lists with DeepSeek, Google Sheets, Telegram and Gmail
Quick overview This workflow generates a daily restaurant prep list from a Google Sheets master, uses an OpenAI (DeepSeek) model to plan quantities, logs tasks back to Google Sheets, and notifies the ...
0
Aug 17, 2026
Classify and file inbound documents with GPT-4o-mini and Gmail
Quick overview This workflow receives documents through a token-protected webhook, validates OCR and file metadata, and uses OpenAI to classify and extract key fields. It stores every outcome in an n8 ...
0
Aug 17, 2026
Analyze pentest reports and create remediation tickets with OpenAI and Slack
Quick overview This workflow receives a penetration test report via webhook, uses OpenAI to extract and normalize vulnerability findings, alerts Slack when critical issues are present, and creates sev ...
0
Aug 17, 2026
Create captioned vertical video clips from Google Drive using CNAPS and Google Sheets
Quick overview Drop a long video in a Google Drive folder and get back short vertical clips with burned-in captions, filed in Drive and logged in a sheet. Comparable pipelines chain four vendors for t ...
0
Aug 17, 2026
Deduplicate security alerts into unified cases with Claude and Slack
Quick overview This workflow ingests SIEM, EDR, and cloud security alerts via webhooks, normalizes and buffers them, then runs a scheduled deduplication pass that uses Anthropic Claude only for ambigu ...
0
Aug 17, 2026
Monitor attack surface changes with OpenAI, Postgres, Slack, and email
Quick Overview This scheduled workflow inventories your external attack surface from three HTTP APIs, diffs it against a Postgres baseline, and uses OpenAI to generate concise risk notes before routin ...
0
Aug 17, 2026
Manage rental guest messaging and cleaning ops with Deepseek and Google Sheets
Quick overview This workflow captures short-term rental bookings via webhook, stores them in Google Sheets, drafts guest emails with a Deepseek AI agent using a Google Sheets playbook, sends messages ...
0
Aug 17, 2026
Match new property listings to buyer leads with Gemini, Gmail and Sheets
Quick overview When a new listing arrives, this workflow scans your buyer database, scores every lead against the listing using Gemini AI, sends personalized match emails to the top buyers, sends What ...
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Built by Hassan Hassan
Aug 17, 2026
Generate and approve UGC ad videos with OpenRouter, Fal, Replicate, and Discord
Quick overview This workflow collects a UGC video request via an n8n form, analyzes the uploaded product image with OpenRouter, generates image/video prompts, and posts them to Discord for human appro ...
0
Aug 16, 2026
Review M&A data room risks with OpenAI, Google Drive, Sheets, Gmail and Slack
Quick overview This workflow starts from an n8n form submission, reviews all documents in a Google Drive data room using OpenAI (gpt-4o-mini), logs per-document risk findings to Google Sheets, then co ...
0
Built by Rahul Joshi Rahul Joshi
Aug 16, 2026
Run an AI student helpdesk with OpenAI, Google Sheets, Slack, and Gmail
Quick overview This workflow handles incoming student chat messages, answers questions using a Google Sheets knowledge base with OpenAI, escalates unresolved or distressed conversations to Slack, logs ...
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Built by Rahul Joshi Rahul Joshi
Aug 16, 2026
Grade assignments and email feedback with OpenAI, Google Drive, Sheets, Gmail and Telegram
Quick overview This workflow watches a Google Drive folder for new PDF submissions, extracts text and grades each assignment with OpenAI using a Google Docs rubric, logs results to Google Sheets, emai ...
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Built by Rahul Joshi Rahul Joshi
Aug 16, 2026
Handle order tracking and FAQ requests with Telegram, Gemini, and Google Sheets
Quick overview Youtube Video: https://youtu.be/Y1OYeENJUn4 This workflow responds to Telegram customer messages by using Google Gemini to detect whether the user wants an order status update or an FA ...
0
Built by iamvaar iamvaar
Aug 16, 2026
Qualify Lusha leads and send AI emails with Google Sheets and Claude
Quick overview This workflow collects ICP criteria via an n8n form, searches and enriches matching contacts in Lusha, scores each lead with Claude (via OpenRouter), writes results to Google Sheets, th ...
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Aug 16, 2026