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
Nodes: Sort: Date:
Score and send job matches from public boards to Telegram with Claude
Quick overview This workflow checks public job postings from Ashby, Greenhouse, and Lever boards plus Jobicy and Himalayas feeds, filters and deduplicates them, scores each new role against your profi ...
0
Oct 06, 2026
Score and reply to new leads using OpenRouter, Gmail and Google Sheets
Quick overview This workflow receives website leads via webhook, uses OpenRouter to score the enquiry and draft a short reply, then sends the response through Gmail and logs the lead (and any errors) ...
0
Built by Hamza Hamza
Oct 06, 2026
Triage purchase requisitions with Airtable, Groq, Google Sheets, and Slack
Quick overview This workflow monitors new purchase requisitions in Airtable, uses Groq LLM scoring plus keyword checks and department rules to determine an urgency-based routing decision, logs each de ...
0
Oct 06, 2026
Generate and score LinkedIn posts from bullet points with Gemini and Google Sheets
Quick overview This workflow receives bullet points via a webhook, uses Google Gemini to generate and score three LinkedIn post variations, logs the results to Google Sheets, and returns an HTML page ...
0
Oct 06, 2026
Compare personal grocery inflation to US CPI with Gemini and Telegram
Quick overview This workflow accepts grocery receipt photos via an n8n form or Telegram, uses Google Gemini to extract and normalize line items, calculates a personal month-to-month inflation rate, pu ...
0
Oct 06, 2026
Post daily weather-based X updates with OpenWeatherMap, OpenAI, and Google Sheets
Quick overview This workflow runs daily at 07:00, pulls current weather from OpenWeatherMap, uses OpenAI to generate a weather-matched post, publishes it to X (Twitter), and logs the weather, bucket, ...
0
Built by kenta kenta
Oct 06, 2026
Detect compromised GitHub dependencies with Gemini and Slack alerts
Quick overview Know within an hour when a hijacked or malicious npm, PyPI or other open-source package lands in any of your GitHub repositories. This workflow checks new GitHub malware and critical ad ...
0
Oct 06, 2026
Triage LINE customer chats with Claude Haiku 4.5 and Slack for staff follow-up
Quick overview This workflow receives customer messages from LINE, uses Anthropic Claude to auto-answer common questions from your shop data, and routes everything else to a Slack thread for staff to ...
0
Oct 06, 2026
Book dental appointments via chat using OpenAI, Qdrant, and Google Calendar
Quick overview This chat-based dental receptionist answers clinic questions using documents stored in Qdrant, checks Google Calendar availability, and books appointments after patient confirmation. It ...
0
Oct 06, 2026
Sync ONDC seller catalog between Google Sheets, seller app, and OpenAI
Quick Overview This workflow syncs an ONDC seller catalog from Google Sheets to a seller app API on a schedule or via webhook, using OpenAI to clean product content, validating ONDC retail rules, chec ...
0
Built by Rahul Joshi Rahul Joshi
Oct 06, 2026
Track MSME 45-day payments for Section 43B(h) with Sheets, Zoho, Slack, OpenAI
Quick overview This workflow tracks MSME vendor bills for Section 43B(h) compliance using Google Sheets as a bill register, optionally syncing bills from Zoho Books, verifying vendors via a Udyam API, ...
0
Built by Rahul Joshi Rahul Joshi
Oct 06, 2026
Confirm COD Shopify orders and manage RTO with GPT-4o-mini, WATI, and Shiprocket
Quick overview This workflow reduces COD RTOs by scoring new Shopify orders (rules + OpenAI), confirming them over WhatsApp via WATI, and dispatching confirmed orders to Shiprocket, while tracking sta ...
0
Built by Rahul Joshi Rahul Joshi
Oct 06, 2026
Answer new website leads from a webhook with OpenAI, Gmail, Slack and Sheets
Quick Overview This workflow receives new website leads via a webhook, uses OpenAI to classify urgency and draft an email reply, sends the reply with Gmail, notifies your team in Slack, logs the lead ...
0
Built by NewBrainsAI NewBrainsAI
Oct 06, 2026
Track and interpret whale wallet movements with Airtable, OpenAI, and Slack
Quick overview This workflow runs every 15 minutes to fetch recent blockchain transactions, matches them against whale and exchange address lists in Airtable, uses OpenAI to generate a cautious market ...
0
Oct 06, 2026
Find outdated statistics in an article with DuckDuckGo
Quick overview Paste an article's address; this workflow lists its dated figures and, for each, a later-dated figure from the web, quoted word for word from its source, side by side for you to revie ...
0
Built by Sam Sam
Oct 06, 2026
Track study weaknesses from LINE images with Google Gemini and Google Sheets
Quick overview This workflow receives study result images from LINE, uses Google Gemini to extract key details and store them in Google Sheets, then analyzes the student’s history to identify weakne ...
0
Oct 06, 2026
Optimize procurement approval workflows with OpenAI, Slack, and Gmail
Quick Overview This workflow runs weekly to review procurement approval performance, detect policy changes, and generate a compliant optimization proposal using a demo recommendation or OpenAI. It val ...
0
Oct 06, 2026
Create and publish social posts via Telegram, OpenAI, Google Docs and PostWire
Quick Overview This workflow turns Telegram topic messages into platform-specific drafts for LinkedIn, Facebook, Bluesky, and Mastodon using OpenAI and brand rules from Google Docs, then publishes app ...
0
Built by PostWire PostWire
Oct 06, 2026
Approve short-form AI videos for TikTok, Reels and Shorts with Gemini, Veo and Telegram
Quick Overview This workflow watches Google Sheets for new video ideas, uses Google Gemini to generate a Veo 3.1 short, sends it to Telegram for approval, and when approved publishes it to TikTok, Ins ...
0
Built by PostWire PostWire
Oct 06, 2026
Trace refund approval flows with OpenRouter and OpenTelemetry
Quick overview This workflow enriches a refund request, drafts an approval proposal with an AI agent, and waits for a human decision, so you can follow one execution across the wait with OpenTelemetry ...
0
Oct 05, 2026