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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Audit landing page conversions with DeepSeek, Google Sheets, Gmail and Telegram
Get your landing page roasted by AI, constructively. Submit any URL and this workflow scores your conversions, lists 10 prioritized fixes, and emails the full report. Low scores fire instant Telegram ...
0
Aug 30, 2026
Send daily competitor intel briefs to Slack with API Direct and OpenAI
Quick overview This workflow runs every morning to search Twitter/X and Google News for a competitor name via API Direct, uses OpenAI to generate a three-bullet intelligence brief from new mentions on ...
1
Built by API Direct API Direct
Aug 29, 2026
Extract invoice data from Gmail PDF invoices into a Google Sheets CRM with OpenRouter
Quick overview This workflow polls Gmail for new invoice emails, extracts text from PDF attachments, uses OpenRouter to parse key invoice fields, and appends the results to a Google Sheets “Invoice� ...
0
Aug 29, 2026
Route AI-scored approval requests with GPT-4o-mini, Supabase and Gmail
Quick overview This workflow collects approval requests via an n8n form, uses OpenAI (GPT-4o-mini) to summarize and score risk, stores the request in Supabase, emails the right approver via Gmail with ...
0
Aug 29, 2026
Detect and email top job matches with RemoteOK, Arbeitnow, OpenAI, Gmail and PostgreSQL
Quick Overview This workflow ingests job listings from RemoteOK and Arbeitnow, normalizes and enriches them with skills and quality scoring, stores unique opportunities in PostgreSQL, matches them to ...
0
Aug 29, 2026
Build a RAG knowledge assistant with Google Drive, OpenAI, and Pinecone
Quick Overview This workflow syncs documents from a Google Drive folder into a Pinecone vector index using OpenAI embeddings, then exposes a webhook chat endpoint where an OpenAI-powered agent answers ...
0
Aug 29, 2026
Detect recurring ServiceNow incidents with Google Gemini and Slack
Quick overview Video Explanation: https://www.linkedin.com/posts/iamvaar_blankarray-n8n-automation-ugcPost-7499437115198373888-XrkB/ This workflow runs weekly to pull recent ServiceNow incidents, gro ...
0
Built by iamvaar iamvaar
Aug 29, 2026
Classify supplier diversity and suggest replacements with Groq, Notion, Gmail and Slack
Quick overview This workflow receives a list of suppliers via webhook, uses Groq-hosted LLMs to classify each supplier’s diversity status and score, generates an alternative recommendation for low-d ...
0
Aug 29, 2026
Handle AI customer support chats via WhatsApp, web chat, Ollama, and Qdrant
Quick overview This workflow provides AI-powered customer support for WhatsApp and an n8n web chat, using Ollama for responses, Redis for deduplication and conversation memory, Qdrant for RAG knowledg ...
0
Aug 29, 2026
Send weekly marketing performance briefs from GA4, GSC, SegMetrics and Slack
Quick overview This workflow runs every Monday to pull weekly performance data from Google Analytics 4, Google Search Console, and SegMetrics, uses OpenAI to generate an executive marketing brief and ...
0
Aug 29, 2026
Detect and self-heal data pipeline incidents with PostgreSQL, Claude and Slack
Quick Overview This workflow runs every 15 minutes to pull recent records from PostgreSQL, detect data quality anomalies, and use Anthropic Claude to classify issues and plan remediation. It executes ...
0
Built by ResilNext ResilNext
Aug 29, 2026
Generate cited web research reports with SerpAPI, Claude, and Google Docs
Quick overview This workflow accepts a research query via webhook, breaks it into sub-questions with Anthropic Claude, gathers web results via SerpAPI, synthesizes a cited report, scores confidence, a ...
0
Built by ResilNext ResilNext
Aug 29, 2026
Send daily XAUUSD macro signals with TwelveData, GDELT, Groq, OpenAI and Telegram
Quick overview This workflow runs daily to fetch XAU/USD price, DXY, and US 10Y yield data, pulls related US financial news from GDELT and RSS feeds, uses Groq-hosted LLM analysis to generate a BUY/SE ...
0
Built by Louis Noël Louis Noël
Aug 29, 2026
Qualify and route inbound leads with GPT-5, Google Sheets, Gmail, and Slack
Quick overview This workflow captures leads via an n8n hosted form, validates and de-duplicates them in Google Sheets, enriches company details with Clearbit autocomplete, qualifies the lead with Open ...
0
Aug 29, 2026
Research and score crowdfunding leads in Google Sheets with DeepSeek AI
Quick overview This workflow runs two daily schedules to research crowdfunding campaigns from Google Sheets using Firecrawl, DeepSeek/OpenAI, Jina AI, Perplexity, Hunter, Lemlist, and an email verific ...
0
Aug 29, 2026
Map local pack rankings across a geo grid with Bright Data, GPT-5.6, Slack and Gmail
Quick overview This workflow runs every Monday to map your Google local pack presence across a grid of nearby coordinates using Bright Data SERP requests, summarizes the results with OpenAI (GPT-5.6), ...
0
Aug 28, 2026
Find competitor content gaps from sitemaps with Bright Data, GPT-5.6 and Slack
Quick overview Compares your site with a competitor by crawling both sitemap trees through Bright Data, finds topic words in their URL slugs that never appear in yours, has GPT-5.6 rate the top gaps, ...
0
Aug 28, 2026
Build competitor battlecards from web pages and G2 reviews with Bright Data, GPT-5.6 and Google Docs
Quick overview This workflow collects a competitor’s key website pages and G2 reviews via Bright Data, uses OpenAI (GPT-5.6) to generate a quote-backed sales battlecard, then writes it to Google Doc ...
0
Aug 28, 2026
Monitor website changes with Google Sheets, Gemini, and Telegram alerts
Quick overview Youtube Video: https://youtu.be/WtFDI9nxrOk This workflow checks a Google Sheets URL watchlist every 10 minutes, fetches each page, removes common “noisy” dynamic text, and detects ...
0
Built by iamvaar iamvaar
Aug 28, 2026
Screen CVs for hidden prompt injections with Gemini, Google Drive, Sheets, and Telegram
Quick overview Youtube Video: https://youtu.be/WMB_6WwJayc This workflow collects PDF CVs via an n8n form, screens them twice with Gemini (text extraction and vision on a rendered image), and compare ...
0
Built by iamvaar iamvaar
Aug 28, 2026