Browse 7,043 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.

7,043 workflows in Langchain
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Triage brand deal emails with Gmail, OpenAI, Tavily, Google Sheets and Slack
Quick overview This workflow monitors unread Gmail inbox emails, uses OpenAI to identify brand deal opportunities, researches the brand via Tavily, calculates a suggested rate, and creates a Gmail dra ...
0
Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Send TDS, GST and ROC compliance reminders via WhatsApp, Sheets and GPT-4o-mini
Quick overview This workflow uses Google Sheets as a compliance tracker for CA firms, sending scheduled WhatsApp Business API reminders for upcoming TDS/GST/ROC deadlines and handling inbound WhatsApp ...
0
Built by Rahul Joshi Rahul Joshi
Sep 28, 2026
Track startup funding rounds with Webz.io, GPT-4.1-mini, Slack and Sheets
Quick overview This workflow runs every morning to search Webz.io news for recent startup funding announcements by sector, uses OpenAI (GPT-4.1-mini) to extract structured round details, deduplicates ...
0
Built by Webz.io Webz.io
Sep 28, 2026
Create and send quote PDFs with OpenAI, Gmail and Google Sheets
Quick Overview This workflow uses Gmail, Google Sheets, Google Drive, and OpenAI to turn incoming customer quote requests into draft offers, generate and email approved offers as PDFs, create and send ...
0
Sep 28, 2026
Create faceless YouTube Shorts with OpenAI and Orshot for YouTube
Quick overview This workflow runs daily at 9am to generate a faceless YouTube Short: OpenAI writes a 15-second script and metadata, Orshot creates a lip-synced AI presenter clip and renders it into a ...
0
Built by Orshot Orshot
Sep 28, 2026
Coach procurement negotiations in Slack with Groq, Alpha Vantage, and Sheets
Quick overview This workflow receives Slack slash commands and interactive events to generate a procurement negotiation intelligence report using Alpha Vantage aluminum prices, supplier deal history f ...
0
Sep 28, 2026
Detect procurement workflow gaps with Google Sheets, OpenAI, and Gmail
Quick overview This workflow watches procurement events in Google Sheets, validates and normalizes each entry, checks the procurement’s lifecycle state to detect missing required steps, and then use ...
0
Sep 28, 2026
Detect dividend yield traps with Google Sheets, Supabase, OpenAI, Slack, and Gmail
Quick overview This workflow runs weekly to scan a Google Sheets dividend watchlist, pulls upcoming ex-dividend and fundamentals data via HTTP requests, scores yield-trap risk, uses OpenAI to explain ...
0
Sep 28, 2026
Detect India VIX regime shifts with GPT-4.1, Google Sheets, and Slack alerts
Quick overview This workflow runs daily to fetch the India VIX value over HTTP, classify it into volatility regimes, compare it to the last stored state in Google Sheets, and when a regime shift occur ...
0
Sep 28, 2026
Route lead reply follow-up tasks by intent with Gmail, OpenAI, Pipedrive, and Slack
Quick overview This workflow monitors a Gmail inbox for lead replies, looks up the sender in Pipedrive, uses OpenAI to classify the lead’s intent and urgency, then creates the appropriate Pipedrive ...
1
Built by Intuz Intuz
Sep 28, 2026
Detect NSE options anomalies with Supabase, OpenAI, Google Sheets and Gmail
Quick overview This workflow runs every 30 minutes to scan an NSE options watchlist from Google Sheets, fetch option chain data via HTTP, compare it with historical snapshots in Supabase, generate an ...
1
Sep 28, 2026
Monitor supplier diversity and ESG spend with Google Sheets, Groq and Notion
Quick Overview This workflow runs every Monday to read supplier, transaction, and target data from Google Sheets, calculates supplier diversity and ESG spend performance, generates rebalancing recomme ...
2
Sep 28, 2026
Rank supplier RFPs with Groq LLM, Airtable and Slack
Quick overview This workflow pulls pending supplier RFP responses from Airtable, uses Groq-hosted LLM analysis to score ESG and supply risk, calculates a strategy-weighted total score using price and ...
4
Sep 28, 2026
Send AI appointment reminders and follow-ups with Calendly, Gmail, OpenAI, and Google Sheets
Quick overview This workflow checks upcoming Calendly appointments every two hours, uses OpenAI to draft reminder and follow-up emails, sends them via Gmail, and logs whether the customer replied or n ...
0
Sep 28, 2026
Send renewal reminder ladder with Google Sheets, GPT-4.1-mini and Slack
Quick overview This workflow runs daily to read renewal data from Google Sheets, calculate reminder stages and renewal risk, use OpenAI to draft tailored reminder emails, send them via Gmail, optional ...
0
Built by isaWOW isaWOW
Sep 28, 2026
Post nightly travel news to X with Google News, OpenAI, and Google Sheets
Quick overview This workflow runs daily at 17:30 (JST) to pull travel-related headlines from Google News RSS, filters and scores recent articles, generates consumer-friendly X (Twitter) post text with ...
0
Built by Hide Hide
Sep 27, 2026
Draft and review restaurant review replies with OpenAI and n8n forms
Quick Overview This workflow collects a restaurant review through an n8n Form, uses OpenAI to draft an on-brand public reply, runs safety checks for risky wording, and presents the draft for human app ...
0
Built by Bot Shop Bot Shop
Sep 27, 2026
Generate site feasibility and risk reports with Google Gemini and Slack
Quick overview Youtube Video: https://youtu.be/Ry6lMULSsF4 This workflow collects a site location via an n8n form, checks whether the coordinates are on land, pulls elevation, protected-species occur ...
0
Built by iamvaar iamvaar
Sep 27, 2026
Reply to support emails in-thread with SendRaven and OpenAI
Quick Overview This workflow receives inbound support emails from SendRaven via a signed webhook, loads the full email thread, uses an OpenAI-powered agent to decide whether to reply, mark the thread ...
0
Built by SendRaven SendRaven
Sep 27, 2026
Triage insurance claims with Jev, DeepSeek, Slack, Gmail, and Google Sheets
Quick overview This workflow receives insurance claims via webhook, checks prior claimant history in Google Sheets, uses Jev Router to classify claim type and risk, routes uncertain or risky cases to ...
0
Sep 26, 2026