Browse 6,351 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.

6,351 workflows in Langchain
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Synchronize MySQL Database Schemas to Pinecone with OpenAI Embeddings
This workflow synchronizes MySQL database table schemas with a vector database in a controlled, idempotent manner. Each database table is indexed as a single vector to preserve complete schema context ...
0
Dec 19, 2025
Schedule and optimize Twitter and LinkedIn posts from Google Sheets with OpenAI GPT-4o-mini
Schedule and optimize social media posts to Twitter and LinkedIn using AI This workflow automates the entire lifecycle of social media management—from fetching draft content to AI-driven optimizat ...
0
Built by yu-ya yu-ya
Dec 19, 2025
Review GitHub pull requests and label them using OpenAI GPT-4o-mini and Slack
Automate GitHub pull request reviews and labeling using OpenAI This workflow automates the first line of code review for your development team. By leveraging OpenAI, it analyzes pull request diffs, ...
0
Built by yu-ya yu-ya
Dec 19, 2025
Schedule and Auto-post Images to Instagram with Google Sheets, Drive and AI Captions
Description This n8n workflow automatically publishes posts to Instagram Business accounts and Facebook Pages using Google Sheets as your content calendar. You schedule posts in the sheet, and n8n pro ...
0
Dec 19, 2025
Draft daily crypto news tweets with CryptoPanic, Google, GPT‑4o and Gmail
🚀 X-Ray: Your AI Crypto Intelligence & Social Agent Stop drowning in crypto noise. X-Ray is a high-performance "Human-in-the-loop" workflow that monitors the market 24/7, filters for high-impact n ...
0
Built by Cyrille Cyrille
Dec 19, 2025
Send AI-Curated Weekly News Digests with RSS, Vector DB & GPT-4o
What this workflow does This workflow implements a two-stage news automation system designed for reusable and topic-driven email delivery. News articles are continuously collected from multiple platf ...
0
Built by Samyotech Samyotech
Dec 19, 2025
Generate YouTube Video Ideas from Comments with GPT-4o-mini and Google Sheets
#Analyse YouTube Comments via AI Agent and Create Video Topics Description Identifying what your audience wants can be a manual and time-consuming process. This workflow automates your content resear ...
0
Built by Websensepro Websensepro
Dec 19, 2025
Automate Company Data Enrichment with HubSpot, Sona, OpenAI & Google Sheets
Automatically identify ICP matches by enriching basic company records with Sona Enrich data—combining web scraping, AI analysis, and the structured attributes that define your ideal customer. Impor ...
0
Built by Sona Labs Sona Labs
Dec 19, 2025
Smart human takeover & auto pause AI-powered Facebook Messenger chatbot
🤖 Facebook Messenger Chatbot - Smart Human Takeover, Auto Pause & Context-Aware Adaptable to n8n 1.113+ and 2.x by Nguyen Thieu Toan (Jay Nguyen) 📖 Overview An intelligent Facebook Messenger ...
107
Dec 18, 2025
Validate Shipments & Generate Freight Documents with GPT-4o, Google Sheets & Drive
✅ What problem does this workflow solve? Logistics teams spend hours manually validating shipment data, checking compliance, generating freight documents, and emailing stakeholders. Errors in HSN c ...
0
Dec 18, 2025
Automated Resume Screening & Interview Scheduling with Gmail, GPT & Airtable
How it works The workflow detects incoming job-application emails, extracts resumes, and parses them for AI analysis. It evaluates each candidate against three open roles and assigns a fit score with ...
0
Dec 18, 2025
Automate Invoice Processing with GPT-4o Classification and XML Export to Accounting
Intelligent Invoice Processing with AI Classification and XML Export Summary Automated invoice processing pipeline that extracts data from PDF invoices, uses AI Agent for intelligent expense categori ...
0
Dec 18, 2025
Translate multilingual content with DeepL, GPT-4, WordPress, Slack and Sheets
#Multi-Language Content Translation Pipeline with AI Quality Control This workflow provides a professional-grade translation pipeline that combines the speed of DeepL with the intelligent reasoning o ...
0
Dec 18, 2025
IoT Sensor Monitoring with GPT-4o Anomaly Detection, MQTT & Multi-Channel Alerts
{ "name": "IoT Sensor Data Aggregation with AI-Powered Anomaly Detection", "nodes": [ { "parameters": { "content": "## How it works\nThis workflow monitors IoT sensors in real-ti ...
0
Dec 18, 2025
Standardize daily construction reports with OpenAI, Gmail and Google Sheets
AI-Driven daily construction report (DCR) standardization What This Workflow Does Standardize Daily Construction Reports (DCR) with AI by capturing raw site inputs via chat and automatically generat ...
2
Dec 18, 2025
Multi-Source Tax & Cash Flow Forecasting with GPT-4, Gmail and Google Sheets
How It Works Automates monthly revenue aggregation from multiple sources with intelligent tax forecasting using GPT-4 structured analysis. Fetches revenue data from up to three distinct sources, con ...
0
Dec 17, 2025
Automate Tax Compliance Validation with OpenAI Anomaly Detection & Accounting Integration
How It Works Automates revenue data validation and intelligent anomaly detection with scheduled weekly processing. Fetches revenue data, applies dual OpenAI models for categorization and anomaly dete ...
0
Dec 17, 2025
Automate GST/VAT Tax Returns with OpenAI, Gmail and Government Portal Integration
How It Works Automates financial aggregation, validation, and intelligent tax assessment. Integrates revenue, expenses, and invoices via scheduled connectors, merges data into unified records, and app ...
0
Dec 17, 2025
Consolidate Stripe, PayPal, Shopify and bank revenue and prepare tax filings with OpenAI
How It Works Consolidates daily revenue from Stripe, PayPal, Shopify, and bank feeds into a single system. The workflow automatically normalizes data across payment sources, uses AI to categorize inco ...
0
Dec 17, 2025
Convert Blog Posts to Podcast Episodes with GPT-4o, ElevenLabs & Google Drive
📊 Description Automate your entire content-to-audio workflow by converting new blog articles into fully produced podcast episodes using AI scriptwriting and ElevenLabs narration. 🎙🤖 This auto ...
0
Built by Rahul Joshi Rahul Joshi
Dec 17, 2025