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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Revive quiet client projects with OpenAI, Airtable, Gmail and Discord
Win back quiet clients on autopilot. This workflow watches your Airtable projects, spots the ones gone silent for 10+ days, and sends personalized check-in emails. Every Friday you also get a health d ...
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Sep 03, 2026
Audit vendor security risk with OpenAI, Google Sheets, Slack and Gmail
Quick overview This workflow runs on a schedule to audit a vendor’s security posture using website header checks, RDAP domain age lookup, and the Have I Been Pwned breaches list, then uses OpenAI to ...
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Built by Rahul Joshi Rahul Joshi
Sep 03, 2026
Publish YouTube videos with OpenAI and HTTP file download
Quick overview This workflow generates an optimized YouTube title and description with OpenAI from a provided video topic, downloads an MP4 from a public URL, and uploads the video to YouTube with the ...
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Built by Vladyslav Vladyslav
Sep 03, 2026
Debounce and buffer WhatsApp AI replies with Redis and Google Gemini
Quick overview This workflow debounces incoming WhatsApp messages, buffers multiple quick-succession texts per sender in Redis, and replies once using a Google Gemini model via an n8n AI Agent, while ...
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Built by iamvaar iamvaar
Sep 03, 2026
Score, route, and reply to inbound leads with GPT-4o-mini, Gmail and Sheets
Quick overview This workflow receives inbound leads via a webhook, filters spam, and uses OpenAI GPT-4o-mini to score and draft replies. It routes hot leads to Gmail and Telegram alerts, logs all lead ...
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Sep 03, 2026
Delegate and track WhatsApp tasks with WhatsApp, Google Sheets and OpenAI
Quick overview This workflow receives WhatsApp messages via a WAHA webhook and uses OpenAI agents to create, query, and update tasks stored in Google Sheets, while assignee replies (optionally with ph ...
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Built by isaWOW isaWOW
Sep 03, 2026
Draft and approve LinkedIn outreach openers with Apify, OpenAI, and Gmail
Quick overview This workflow runs daily to find public LinkedIn profiles via Apify, drafts a short personalized opener with OpenAI, and sends each draft to you in Gmail for approval before saving appr ...
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Sep 02, 2026
Compare iOS and Android review complaints with Apify, OpenAI and Google Sheets
Quick overview This workflow runs every Monday morning to scrape recent reviews for your app from Google Play and the Apple App Store via Apify, uses OpenAI to label each negative review with a short ...
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Sep 02, 2026
Find software startup opportunities in Reddit posts with Apify, Gemini and Sheets
Quick overview This scheduled workflow searches Reddit via Apify for problem-focused posts, filters and deduplicates them, analyzes the best candidates with Google Gemini to identify high-confidence s ...
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Sep 02, 2026
Extract and log email orders with Gmail, GPT-4o-mini, and Google Drive/Sheets
Quick overview This workflow watches Gmail for incoming order emails, extracts structured order and line-item data using OpenAI (vector stores and GPT-4o-mini), then exports the results as CSV files t ...
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Built by Rahul Joshi Rahul Joshi
Sep 02, 2026
Build a company knowledge brain with Google Drive, Cognee, OpenAI, and Slack
Quick overview This workflow ingests PDFs from Google Drive into a Cognee company_brain dataset and exposes the knowledge graph through a GPT-4o-mini agent that answers questions from the n8n chat UI ...
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Built by Rahul Joshi Rahul Joshi
Sep 02, 2026
Sync Fireflies meeting notes to HubSpot CRM using Google Gemini and Slack alerts
Quick Overview This workflow receives Fireflies meeting-completed webhooks, pulls the full transcript from Fireflies via GraphQL, uses Google Gemini to extract a structured summary and CRM updates, an ...
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Sep 02, 2026
Watch brand edits on Wikipedia and Wikidata with OpenAI and email summaries
Quick overview This workflow checks specified Wikipedia articles and the matching Wikidata items on a weekly schedule, compares the latest revisions to what was seen previously, uses OpenAI to judge w ...
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Sep 02, 2026
Find and track flaky CI jobs in GitHub Actions with OpenAI and Slack
Quick Overview This workflow runs daily (or on demand) to analyze GitHub Actions re-runs for a specific workflow and branch, identify flaky jobs by comparing pass/fail history across attempts, summari ...
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Sep 02, 2026
Route weather-based delivery holds with Open-Meteo, Gemini, Postgres, and ServiceNow
Quick overview Demo Video: https://youtu.be/ccE_y0J-LKY This workflow polls Open-Meteo weather data every 15 minutes for a configured region, when severe conditions are detected, checks today’s del ...
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Built by iamvaar iamvaar
Sep 02, 2026
Analyze competitor YouTube thumbnails with OpenAI and hand off approved concepts to ThumbCanvas
Quick overview This workflow serves a web form to collect a YouTube video brief, validates the input, generates three distinct thumbnail prompt directions, and returns a review page with deep links th ...
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Built by Kevin Kevin
Sep 02, 2026
Detect and explain KPI anomalies with Postgres, Slack, GitHub, Gmail and Claude
Quick overview This workflow collects daily KPI values in Postgres, builds robust baselines, detects anomalies, and routes alerts to Slack, GitHub, and Gmail with an OpenRouter (Claude) investigation ...
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Built by Mina Saad Mina Saad
Sep 02, 2026
Screen and auto-apply to remote jobs with MrScraper, Gemini, and Telegram
Quick overview This workflow runs every four hours to discover remote job openings across Recruitee, Lever, Ashby, and Greenhouse, score them against your CV using Google Gemini, research salary and c ...
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Built by aliyahusna aliyahusna
Sep 02, 2026
Generate social posts and images from form inputs with OpenAI
Quick overview This workflow collects a business and topic via an n8n form, uses OpenAI to generate a ready-to-publish social post plus an image prompt, creates a matching image with OpenAI, and retur ...
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Sep 02, 2026
Manage student lifecycle and AI exam grading with OpenAI, Google Sheets, and Gmail
Quick overview This workflow automates a student’s journey from course enrollment to exam grading and certification by connecting n8n Forms, Google Sheets, Gmail, Slack, OpenAI, Google Drive, and Go ...
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Sep 02, 2026