n8n Node Categories

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Overview

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🤖 AI/LLM Integration Nodes

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Language Models

• OpenAI - GPT-4, GPT-3.5, DALL-E, Embeddings
• Claude - Anthropic’s AI models
• Mistral AI - Open-weight models
• Perplexity - Search-augmented AI
• Cohere - Text generation and analysis
• Hugging Face - Open source models

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AI Infrastructure

• LangChain - Complex AI chains and agents
• Vector Stores - Pinecone, Weaviate, Qdrant, Chroma
• Document Loaders - PDF, Word, Web scraping
• Embeddings - Text vectorization
• Memory - Conversation history management

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🔧 Core Utility Nodes

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Triggers

• Webhook - Receive HTTP requests
• Schedule Trigger - Cron-based automation
• Email Trigger - React to incoming emails
• File Trigger - Monitor file system changes
• Interval - Simple time-based triggers
• Manual Trigger - Start workflows manually

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Data Processing

• Code - Execute JavaScript/Python
• Function - Transform data with code
• Set - Set or rename fields
• Merge - Combine multiple data streams
• Split In Batches - Process large datasets
• Item Lists - Aggregate and split items

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Flow Control

• Switch - Conditional routing (if/else)
• Loop - Iterate over items
• Wait - Delay execution
• Stop and Error - Handle errors
• Execute Workflow - Run sub-workflows
• Execute Command - Run shell commands

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💾 Database Nodes

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SQL Databases

• PostgreSQL - Full CRUD operations
• MySQL/MariaDB - Query and manipulate data
• Microsoft SQL Server - Enterprise database
• SQLite - Lightweight local database
• Oracle - Enterprise Oracle DB
• QuestDB - Time-series database

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NoSQL Databases

• MongoDB - Document database
• Redis - In-memory data store
• Elasticsearch - Search and analytics
• CouchDB - Document-oriented database
• ArangoDB - Multi-model database
• Cassandra - Wide column store

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Cloud Databases

• Supabase - Open source Firebase alternative
• Firebase/Firestore - Google’s cloud database
• AWS DynamoDB - Amazon’s NoSQL service
• TimescaleDB - Time-series on PostgreSQL
• InfluxDB - Time-series metrics

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📱 Communication Nodes

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Messaging Platforms

• Slack - Send messages, manage channels
• Discord - Bot interactions, webhooks
• Telegram - Bots and notifications
• Microsoft Teams - Team collaboration
• Matrix - Decentralized communication
• Mattermost - Open source Slack alternative

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Email Services

• Email Send - SMTP email sending
• Email Read - IMAP email reading
• Gmail - Google email integration
• Outlook - Microsoft email
• SendGrid - Transactional email
• Mailchimp - Marketing emails

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SMS & Voice

• Twilio - SMS, voice, WhatsApp
• Vonage - SMS and voice APIs
• MessageBird - Omnichannel messaging
• Plivo - Voice and SMS platform

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📊 Data & Analytics

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Spreadsheets

• Google Sheets - Read/write spreadsheets
• Microsoft Excel - Excel file operations
• Airtable - Database-spreadsheet hybrid
• Baserow - Open source Airtable alternative
• SeaTable - Collaborative database

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Business Intelligence

• Google Analytics - Website analytics
• Mixpanel - Product analytics
• Segment - Customer data platform
• Amplitude - Product intelligence
• Metabase - Open source BI

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Data Processing

• CSV - Parse and create CSV files
• XML - Parse and create XML
• JSON - Manipulate JSON data
• HTML Extract - Scrape web pages
• Binary Data - Handle files and attachments

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🔌 File & Storage

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Cloud Storage

• Google Drive - Files and folders
• Dropbox - File sync and share
• Box - Enterprise content management
• OneDrive - Microsoft cloud storage
• AWS S3 - Object storage
• FTP/SFTP - File transfer protocols

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File Operations

• Read Binary File - Load files
• Write Binary File - Save files
• Move Binary Data - Transfer between nodes
• Compression - Zip/unzip files
• Encryption - Secure file handling

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🌐 HTTP & APIs

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Request Nodes

• HTTP Request - Make any API call
• GraphQL - Query GraphQL endpoints
• Webhook - Receive HTTP calls
• SSE Trigger - Server-sent events
• WebSocket - Real-time connections
• RSS Feed - Read RSS/Atom feeds

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API Tools

• Respond to Webhook - Send webhook responses
• OAuth2 - Authentication flows
• API Rate Limiting - Manage API limits
• Pagination - Handle paginated APIs
• Retry on Fail - Automatic retries

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🔄 Workflow Control

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Execution Management

• Start - Workflow entry point
• Execute Workflow - Run other workflows
• Execute Command - System commands
• Wait - Pause execution
• Schedule - Time-based execution
• Cron - Advanced scheduling

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Error Handling

• Error Trigger - Catch workflow errors
• Stop and Error - Throw custom errors
• Try/Catch - Error boundaries
• Retry - Automatic retry logic
• Circuit Breaker - Failure protection

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🛠️ Development Tools

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Version Control

• Git - Repository operations
• GitHub - Issues, PRs, releases
• GitLab - Complete DevOps platform
• Bitbucket - Atlassian’s Git solution

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CI/CD

• Jenkins - Automation server
• CircleCI - Continuous integration
• GitHub Actions - GitHub workflows
• Netlify - Deploy and host

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Monitoring

• Sentry - Error tracking
• Datadog - Infrastructure monitoring
• New Relic - Application performance
• PagerDuty - Incident management

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🎯 Marketing & Sales

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CRM Systems

• Salesforce - Enterprise CRM
• HubSpot - Inbound marketing
• Pipedrive - Sales pipeline
• Zoho CRM - Business suite
• Copper - Google Workspace CRM

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Marketing Automation

• Mailchimp - Email marketing
• ActiveCampaign - Marketing automation
• Sendinblue - Digital marketing
• ConvertKit - Creator marketing
• Drip - E-commerce CRM

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Social Media

• Twitter - Post and monitor
• LinkedIn - Professional network
• Facebook - Pages and ads
• Instagram - Business tools
• YouTube - Video management

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💰 E-commerce & Payments

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Payment Processing

• Stripe - Payment infrastructure
• PayPal - Online payments
• Square - Payment processing
• Paddle - SaaS payments
• Wise - International transfers

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E-commerce Platforms

• Shopify - Online stores
• WooCommerce - WordPress commerce
• Magento - Open source commerce
• BigCommerce - SaaS platform
• Gumroad - Creator commerce

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🏢 Business Tools

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Project Management

• Jira - Issue tracking
• Asana - Work management
• Trello - Kanban boards
• Monday.com - Work OS
• ClickUp - All-in-one PM

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Collaboration

• Notion - All-in-one workspace
• Confluence - Team collaboration
• Miro - Visual collaboration
• Figma - Design collaboration
• Loom - Video messaging

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HR & Operations

• BambooHR - HR management
• Calendly - Appointment scheduling
• Typeform - Interactive forms
• DocuSign - Electronic signatures
• Zapier - Automation platform

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Custom Nodes

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Creating Custom Nodes

import { INodeType, INodeTypeDescription } from 'n8n-workflow';

export class MyCustomNode implements INodeType {
  description: INodeTypeDescription = {
    displayName: 'My Custom Node',
    name: 'myCustomNode',
    group: ['transform'],
    version: 1,
    description: 'Custom node for specific task',
    defaults: {
      name: 'My Custom Node',
    },
    inputs: ['main'],
    outputs: ['main'],
    properties: [
      // Define node parameters
    ],
  };
}

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Node Resources

• Complete Node Reference
• Node Documentation
• Community Nodes

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Next Steps

• Browse Service Integrations for detailed integration guides
• Learn Workflow Patterns for common use cases
• Explore Custom Node Development to extend n8n