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.

6,295 workflows in Langchain
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Route urgent Gmail support emails and WhatsApp digests with Groq and Supabase
Quick overview This workflow monitors a Gmail inbox, uses Groq LLM classification to label each support email as urgent, routine, or spam, logs the result to Supabase, sends immediate WhatsApp alerts ...
0
Jul 18, 2026
Generate weekly student progress reports with Gemini, Supabase, and WhatsApp
Quick overview This workflow runs weekly to pull student attendance and score data from Supabase, uses Google Gemini to generate per-student performance summaries and attention flags, sends immediate ...
0
Jul 18, 2026
Route and triage multi-channel support tickets with OpenAI, HubSpot, Slack and Gmail
Quick Overview This workflow receives support requests via a webhook, normalizes the payload, and uses OpenAI to classify and route tickets through HubSpot, Slack, Gmail, WhatsApp Business API, and Go ...
0
Jul 18, 2026
Send CRM lead outreach emails with Notion, Gmail, Google Drive and OpenAI
Quick Overview This workflow watches a Notion CRM for leads ready to contact, checks Gmail to avoid duplicate outreach, then sends or drafts an email with Google Drive PDF attachments and updates the ...
0
Jul 18, 2026
Draft personalized cold emails from Google Sheets using Gemini and HubSpot
Quick overview This workflow batch-processes leads from Google Sheets, researches each person and company using Tavily plus Google Gemini, drafts a personalized cold email, then creates/updates the co ...
0
Built by Vyrazu Labs Vyrazu Labs
Jul 17, 2026
Create Zoho Books invoices from email attachments using OpenAI OCR
Quick overview This workflow monitors an IMAP inbox for emails with invoice attachments, uses OpenAI to OCR and extract structured invoice data, looks up customers and tax/currency settings in Zoho Bo ...
0
Built by CRMOZ CRMOZ
Jul 17, 2026
Send and track Slack invoice requests with Gemini, Google Sheets and Gmail
Quick overview Youtube Video: https://youtu.be/42-oHh9w9Eo This workflow listens for Slack @mentions, uses Google Gemini to classify the request and extract invoice details, then reads and updates Goo ...
0
Built by iamvaar iamvaar
Jul 17, 2026
Report workflow errors to Asana tasks with Google Chat and Grok 4.5 analysis
Quick overview When a monitored workflow fails, this reads its Description field to find the owning client and assignee, looks them up in Asana, analyses the error with Grok 4.5, and creates an assign ...
1
Jul 17, 2026
Create Instagram carousels and TikTok slideshows with OpenAI and PostFast
Quick overview This workflow runs on a Mon/Wed/Fri schedule to generate an Instagram carousel or TikTok slideshow using OpenAI (GPT-4o-mini and gpt-image-1), sends the slides to Telegram for approval, ...
0
Jul 16, 2026
Send and track LinkedIn outreach with Airtable, Unipile, and OpenRouter
Quick overview This workflow automates LinkedIn outreach by using Airtable as a CRM, Unipile to fetch profiles and send connection requests/messages, and OpenRouter to generate personalized connection ...
1
Jul 16, 2026
Screen resumes and route hiring decisions with Airtable, DeepSeek, and gotoHuman
Quick overview This workflow collects job applications via Gmail, deduplicates candidates in Airtable, extracts resume text with LlamaParse, scores candidates against an Airtable role rubric using a D ...
3
Jul 16, 2026
Serve a notes web app via webhooks and n8n Data Tables
Quick overview This workflow hosts a simple notes web app in n8n, serving a static HTML UI via a webhook and providing CRUD API endpoints backed by an n8n Data Table. No separate website, database, or ...
0
Jul 16, 2026
Run LinkedIn outreach with Google Gemini, Apify, Google Sheets, and PhantomBuster
Quick overview This workflow collects a plain-English LinkedIn audience description via an n8n form, uses Google Gemini to generate a search URL, pulls matching leads from Apify, writes five personali ...
0
Jul 16, 2026
Handle WhatsApp customer service chats with Google Gemini and Google Sheets
Quick Overview This workflow handles WhatsApp customer service via OpenWA, using Google Gemini and a Google Sheets knowledge base to answer personal chats, while routing conversations to a human queue ...
0
Built by Vinsen Vinsen
Jul 16, 2026
Generate AI captions and auto-post random images to Nimply channels
Quick overview This workflow automatically picks a random image, uses an AI Agent to generate an engaging caption, uploads the image to Nimply, and publishes it as a post to a chosen Nimply channel, t ...
0
Built by Tahir Tahir
Jul 15, 2026
Answer Slack knowledge base questions with Notion, Pinecone, and OpenAI
Quick overview This workflow syncs an internal Notion knowledge base to Pinecone on a daily schedule, then runs a Slack bot that answers questions in a specific channel using Pinecone retrieval and an ...
0
Jul 15, 2026
Tailor ATS-ready resumes and cover letters with Gemini, Google Drive, Notion, and Gmail
Quick overview Transform any resume into a professional, ATS-compliant document with AI. Supports Global ATS, German, and Japanese resume formats, generates personalized cover letters, and automates P ...
0
Jul 15, 2026
Assess visa eligibility and send PDF checklists with Claude and SendGrid
Quick overview This workflow receives visa eligibility requests via webhook, uses Anthropic Claude to extract passport details and assess visa requirements, generates a purpose-specific document check ...
0
Jul 15, 2026
Handle WhatsApp gym bookings and surveys with Claude, Whisper, and Google Sheets
Quick overview A complete WhatsApp AI chatbot that handles class bookings, cancellations, FAQ responses, schedule lookups, location queries, waitlist management, booking reminders, survey, and staff n ...
3
Built by Oscar Oscar
Jul 15, 2026
Extract and log Gmail admin tasks with OpenAI, Google Sheets and Airtable
Quick overview This workflow monitors Gmail for messages labeled “Admin”, redacts sensitive data, uses OpenAI to extract structured admin tasks and reminders, skips duplicates by checking Google S ...
0
Jul 15, 2026