Browse 6,989 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.

6,989 workflows in Langchain
Nodes: Sort: Date:
Clean travel photos by removing people with Google Gemini and Google Drive
Quick overview This workflow provides an upload form that analyzes travel photos with Google Gemini, removes all people or only unselected people, then uploads the cleaned images to Google Drive and r ...
0
Oct 02, 2026
Score journalist requests and draft press pitches with Apify, OpenAI, Google Sheets and Telegram
Quick overview This workflow runs every morning to pull open journalist requests via Apify, score each request with OpenAI against your expertise, log all scores to Google Sheets, and send high-scorin ...
0
Oct 02, 2026
Reply to Facebook comments using RAG with Google Drive, Supabase, OpenAI and Postgres
Quick overview This workflow creates a Facebook Messenger chatbot that answers questions using a Supabase vector knowledge base built from PDFs in Google Drive, using OpenRouter for chat responses, Op ...
0
Built by MADIAD MADIAD
Oct 02, 2026
Route critical lab results using Google Sheets, Slack, Gmail, Gemini, and Twilio
Quick overview A lab result routing workflow that notifies the ordering physician by severity, using thresholds you control. Critical results trigger an immediate Slack and SMS alert with acknowledgme ...
0
Oct 02, 2026
Run budget-capped client AI agents with OpenAI and n8n data tables
Quick overview For agencies and freelancers who run one AI agent for several paying clients. Each client has a monthly budget, a pause switch and its own instructions in an n8n Data table. A run start ...
0
Oct 02, 2026
Triage and route Gmail leads with Groq, Notion CRM, and Twilio calls
Quick Overview This workflow checks unread Gmail messages every hour, uses Groq-hosted LLM prompts to triage importance and route emails to the right manager, then updates a Notion CRM database, forwa ...
0
Oct 02, 2026
Send daily JLPT kanji-safe lessons to Microsoft Teams with Sheets and Claude
Quick overview This workflow runs daily, reads your learned kanji and JLPT grammar lists from Google Sheets, uses an AWS Bedrock chat model to generate and proofread a lesson constrained to known kanj ...
0
Built by Sukhman Sukhman
Oct 02, 2026
Monitor RAG answer quality daily with OpenAI, data tables and Telegram
Quick Overview This workflow runs daily to evaluate a RAG-style support bot using OpenAI for embeddings, answer generation, and judging, stores run metrics in n8n Data Tables, and sends a Telegram ale ...
0
Oct 02, 2026
Track competitor website changes with Firecrawl, OpenAI, Google Sheets and Gmail
Quick overview This workflow runs on a schedule, reads competitor URLs from Google Sheets, scrapes each site with Firecrawl, analyzes the content with OpenAI, logs results back to Google Sheets, gener ...
0
Oct 02, 2026
Monitor vendor compliance documents and expiries with Google Drive, OpenAI, Sheets, Gmail, and Slack
Quick overview This workflow monitors a Google Drive folder for new vendor compliance PDFs, uses OpenAI to classify and extract key fields, logs and tracks them in Google Sheets, flags uncertain items ...
0
Built by Javed Iqbal Javed Iqbal
Oct 02, 2026
Create Instagram, TikTok and LinkedIn carousels with OpenAI and PostWire
Quick Overview This workflow collects a carousel topic via an n8n form, uses OpenAI to plan slide copy and generate images, uploads the slides to PostWire, and publishes them as Instagram, TikTok, and ...
0
Built by PostWire PostWire
Oct 02, 2026
Create daily Google Trends image posts for Instagram, TikTok, and Facebook with OpenAI and PostWire
Quick Overview This workflow runs every morning, reads Google Trends RSS for a chosen country, uses OpenAI to select an on-brand trend and generate captions and an image prompt, creates an image with ...
0
Built by PostWire PostWire
Oct 02, 2026
Qualify and route real estate leads with Google Gemini, Gmail, Slack and Sheets
Quick overview Automatically qualifies incoming leads with Gemini AI, routes each one to the best available agent by speciality and workload, notifies via Gmail and Slack, escalates to the broker if u ...
0
Built by Hassan Hassan
Oct 02, 2026
Reduce appointment no-shows and refill slots with Google Calendar, Sheets, Twilio, Gmail and OpenAI
Quick Overview This workflow monitors Google Calendar appointments, uses Google Sheets as a client/waitlist database and log, and sends confirmations, waitlist offers, and recall messages via Twilio S ...
0
Built by Luca Luca
Oct 01, 2026
Triage Gmail with Gemini, label emails, log invoices to Sheets, and send Telegram alerts
Quick overview This workflow watches your Gmail inbox, uses Google Gemini to classify and summarize each email, applies category labels, optionally creates reply drafts, logs invoice details to Google ...
0
Built by Amelqa Amelqa
Oct 01, 2026
Answer currency rate questions from Gmail and chat with Gemini and Frankfurter API
Quick Overview This workflow answers exchange-rate questions coming from Gmail or an n8n chat trigger using a Google Gemini AI agent that calls the Frankfurter exchange-rate API, caches successful rat ...
0
Oct 01, 2026
Create and post real estate listing videos to Facebook, Instagram, and TikTok with Airtable, OpenAI, and Orshot
Quick overview This workflow watches listing status changes in Airtable, renders a branded vertical real estate video in Orshot from the listing and agent details, publishes the MP4 to Instagram and T ...
0
Built by Orshot Orshot
Oct 01, 2026
Triage and stow Gmail messages with Google Gemini, Telegram, and Sheets
Quick overview This workflow monitors Gmail for new messages, uses Google Gemini to classify and summarize them as emails or calendar invites, assesses urgency, and notifies you in Telegram. It stows ...
0
Oct 01, 2026
Parse files and URLs into structured JSON with Groq and Google Gemini
Quick overview This sub-workflow accepts files or a URL from a parent workflow, extracts readable text from many formats, optionally converts that text into structured JSON using Groq and Google Gemin ...
0
Built by David David
Oct 01, 2026
Book home care assessments by phone with Vapi, Google Gemini and Google Calendar
Quick overview This workflow provides two Vapi webhook tools to check care assessment availability and book appointments, using Google Calendar for scheduling, Google Gemini to translate busy times in ...
0
Built by Ali Amin Ali Amin
Oct 01, 2026