> ## Documentation Index
> Fetch the complete documentation index at: https://withseismic.com/llms.txt
> Use this file to discover all available pages before exploring further.

# n8n Node Categories

> Complete guide to all n8n node types and their capabilities

## Overview

n8n provides hundreds of nodes organized into categories. Each node represents a specific action or trigger in your workflow.

## 🤖 AI/LLM Integration Nodes

n8n provides native support for AI workflows:

### 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

### 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

## 🔧 Core Utility Nodes

Essential building blocks for any workflow:

### 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

### 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

### 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

## 💾 Database Nodes

Connect to any database:

### 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

### 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

### 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

## 📱 Communication Nodes

### 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

### 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

### SMS & Voice

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

## 📊 Data & Analytics

### Spreadsheets

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

### Business Intelligence

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

### 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

## 🔌 File & Storage

### 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

### 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

## 🌐 HTTP & APIs

### 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

### 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

## 🔄 Workflow Control

### 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

### 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

## 🛠️ Development Tools

### Version Control

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

### CI/CD

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

### Monitoring

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

## 🎯 Marketing & Sales

### CRM Systems

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

### Marketing Automation

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

### Social Media

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

## 💰 E-commerce & Payments

### Payment Processing

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

### E-commerce Platforms

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

## 🏢 Business Tools

### Project Management

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

### Collaboration

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

### HR & Operations

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

## Custom Nodes

### Creating Custom Nodes

n8n allows you to create custom nodes for proprietary APIs or specific business logic:

```typescript theme={null}
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
    ],
  };
}
```

## Node Resources

* [Complete Node Reference](https://github.com/n8n-io/n8n/tree/master/packages/nodes-base/nodes)
* [Node Documentation](https://docs.n8n.io/integrations/)
* [Community Nodes](https://www.npmjs.com/search?q=n8n-nodes)

## Next Steps

* Browse [Service Integrations](/universities/automation/no-code/n8n-service-integrations) for detailed integration guides
* Explore the [Complete Node List](/universities/automation/no-code/n8n-complete-node-list) for all available nodes
* Learn [n8n Basics](/universities/automation/no-code/n8n-basics) if you're just getting started