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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Qualify and score web form leads with Groq, Google Sheets, Telegram and Slack
Quick Overview This workflow receives web form leads via a webhook, normalizes the fields, uses Groq (chat model) to score buying intent and assign a hot/warm/cold tier, saves every lead to Google She ...
0
Built by Luiz Junior Luiz Junior
Sep 04, 2026
Build an EU AI Act risk inventory with OpenAI and Google Sheets
Quick overview This workflow collects internal AI system reports via an n8n form, uses OpenAI to propose an EU AI Act risk class with validation rules, stores each entry in Google Sheets, and emails m ...
0
Sep 04, 2026
Reconcile bank payments with GPT-4o-mini, Google Sheets, Gmail and Telegram
Quick overview This workflow runs daily to reconcile incoming bank payments from Google Sheets against open invoices, matching by invoice reference first and using GPT-4o-mini for the remaining transa ...
0
Sep 04, 2026
Repurpose YouTube captions into social, community, and email content with OpenAI and Notion
Quick overview This workflow runs on a schedule or manually to fetch your latest YouTube video, download its official captions via the YouTube Data API, and use OpenAI to draft platform-specific marke ...
0
Sep 04, 2026
Autonomous AI Customer Support Agent with Multi-KB RAG & Human Escalation
Quick Overview This workflow receives support requests via webhook, validates and rate-limits them in Supabase, then uses an Ollama-powered LangChain agent with three Supabase vector knowledge bases a ...
35
Built by Nev Nev
Sep 04, 2026
Generate quality-checked YouTube thumbnails with OpenAI and Google Drive
Quick overview This workflow collects a video title via an n8n form, analyzes creator photos and reference thumbnails from Google Drive with OpenAI, generates two thumbnail concepts, creates images wi ...
3
Sep 04, 2026
Create and publish AI YouTube videos from Google Sheets with GPT-4o and JSON2Video
Quick overview This workflow pulls “to create” YouTube ideas from Google Sheets, uses OpenAI to generate a 14-scene script with voice and image prompts, renders a video via JSON2Video with selecte ...
0
Sep 04, 2026
Track analyst target and rating drift with Yahoo Finance MCP, OpenAI, and Telegram
Quick overview This workflow runs every weekday morning, pulls analyst price targets and consensus ratings for a stock watchlist via a self-hosted Yahoo Finance MCP server, stores daily snapshots in a ...
0
Sep 04, 2026
Send daily TMDB movie recommendations to a Telegram channel with OpenAI
Quick overview This workflow finds a high-rated movie from TMDB, selects one at random, uses OpenAI to generate a short recommendation, and automatically posts the movie poster with the generated capt ...
0
Built by Vladyslav Vladyslav
Sep 04, 2026
Track Spotify podcast performance in Google Sheets with weekly AI email insights
Quick overview This workflow manually pulls episode lists and performance metrics from Spotify for Creators (Anchor API) and appends one analytics row per episode to a Google Sheets worksheet. How it ...
0
Sep 04, 2026
Log Shopee ads balance requests using Tesseract, Google Drive, Sheets, and Telegram
Shopee ad top-ups without the screenshot chaos. This workflow collects Shopee Ads funding requests through a form, reads the payment proof with Tesseract OCR, stores it in Google Drive, logs everythin ...
0
Sep 04, 2026
Capture Reddit buyer-intent leads with Apify, Google Gemini, and Sheets
Quick Overview This workflow runs daily, scrapes recent Reddit posts via Apify, filters and deduplicates them, uses Google Gemini to score buyer intent and extract monetizable opportunities, and then ...
0
Sep 04, 2026
Route fire sprinkler deficiencies with Gmail, OpenAI, Telegram and Sheets
Quick overview This workflow monitors a Gmail inbox for fire sprinkler inspection deficiency emails, uses OpenAI to classify severity, routes critical items to urgent email notice and standard items t ...
0
Sep 04, 2026
Triage elevator callbacks and compliance alerts with OpenAI, Telegram, and Gmail
Quick overview This workflow polls an elevator monitoring API every 30 minutes, compares the latest unit status to a saved prior snapshot in an n8n Data Table, uses OpenAI to extract structured fault ...
0
Sep 04, 2026
Handle WhatsApp event bookings with OpenAI and Google Sheets
Quick overview This workflow receives inbound WhatsApp messages via a WAHA webhook, uses OpenAI with Postgres chat memory and Google Sheets tools to answer event and booking questions, and replies bac ...
0
Built by isaWOW isaWOW
Sep 04, 2026
Summarize unpaid freee invoices with Gemini, Slack, Google Sheets, and Gmail
Quick overview This workflow runs every morning to fetch unsettled invoices from the freee Invoices API, calculate and rank how overdue they are, generate a short prioritized summary with Google Gemin ...
0
Sep 04, 2026
Review Terraform pull requests with GitHub, GPT-4.1, Postgres and Slack
Quick overview This workflow reviews Terraform pull requests in GitHub using an OpenAI tool-calling agent that can run plan, security, cost, and standards checks, then logs results to Postgres, commen ...
0
Sep 04, 2026
Quote and dispatch home-service jobs from forms with OpenAI, Google Sheets and Slack
Quick overview This workflow collects home-service quote requests via an n8n Form, uses OpenAI and a Google Sheets price book to estimate effort and a price range, then dispatches the job to the best ...
1
Sep 04, 2026
Triage and remediate Kubernetes incidents using Claude and Slack
Quick overview This workflow receives Kubernetes failure alerts via a webhook, collects diagnostics from a kubectl wrapper API, uses Anthropic Claude to propose a remediation with a risk level, reques ...
0
Sep 04, 2026
Score job postings and draft tailored CV summaries and cover letters with OpenAI and Google
Quick overview I made this for the tailoring tax on job hunting. Each day it reads your board's feed and scores every posting against your master CV. The ones worth it get a summary and a cover letter ...
4
Sep 04, 2026