Node Types

Nodes are the building blocks of FlowMaestro workflows. Each node performs a specific function, from AI generation to data transformation to external integrations.

Node Categories

FlowMaestro provides 47+ built-in node types organized into five categories:

AI & LLM Nodes

Bring AI capabilities to your workflows:

Node	Description
LLM	Generate text with GPT, Claude, Gemini, and more
Vision	Analyze images with AI
Audio Input	Transcribe speech to text
Audio Output	Generate speech from text
Embeddings	Create vector embeddings
Router	AI-powered classification and routing
Knowledge Base Query	Semantic search over documents
OCR	Extract text from images
Image Generation	Generate images with DALL-E, Stable Diffusion
Video Generation	Generate videos with Runway, Luma

View all AI nodes

Logic & Control Nodes

Control workflow execution flow:

Node	Description
Conditional	Branch based on conditions
Switch	Multi-way routing
Loop	Iterate over arrays or repeat operations
Wait	Pause execution
Human Review	Pause for human input/approval
Transform	Map, filter, reduce, and transform data
Shared Memory	Store and retrieve workflow data
Code	Execute custom JavaScript or Python

View all logic nodes

Data Nodes

Handle input, output, and data operations:

Node	Description
Files	Accept file uploads
URL	Fetch and process web content
Output	Collect workflow outputs
Template Output	Render templates with variables
HTTP	Make API requests
Database	Query PostgreSQL, MySQL, MongoDB
Web Search	Search the web

View all data nodes

Integration Nodes

Connect to external services:

Category	Examples
Communication	Slack, Discord, Email, WhatsApp, Teams
E-commerce	Shopify, Stripe, WooCommerce
CRM	HubSpot, Salesforce, Pipedrive
Productivity	Google Sheets, Notion, Airtable
Social Media	Instagram, LinkedIn, X (Twitter)
Development	GitHub, Jira, Linear

View all integrations

Built-in Tools

Generate documents and visualizations:

Node	Description
Chart Generation	Create charts (bar, line, pie, etc.)
Spreadsheet Generation	Create Excel/CSV files
PDF Generation	Create PDF documents
Screenshot Capture	Capture web page screenshots
File Operations	Read, write, manage files

View all built-in tools

Node Anatomy

Every node has:

• Inputs — Data flowing into the node
• Configuration — Node-specific settings
• Outputs — Data produced by the node
• Output Variable — Name to reference results downstream

Using Nodes

Adding Nodes

1. Click the + button or drag from the node palette
2. Select the node type
3. Connect to other nodes by dragging between ports

Configuring Nodes

1. Click a node to select it
2. Use the side panel to configure settings
3. Reference variables with {{variable}} syntax

Connecting Nodes

• Drag from an output port to an input port
• Multiple outputs can fan out to different nodes
• Multiple inputs can merge into one node

Variable Access

Reference data from any previous node:

{{node_name.output}}           // Full output
{{node_name.output.field}}     // Specific field
{{node_name.output[0]}}        // Array index
{{trigger.body}}               // Trigger data
{{env.API_KEY}}                // Environment variable

Node Output Variable

Each node stores its result in an output variable:

{
    outputVariable: "result_name";
}

Reference downstream: {{result_name}}

Next Steps

• AI & LLM Nodes — Work with language models
• Logic Nodes — Control flow and transformations
• Data Nodes — Handle input and output
• Integration Nodes — Connect to services
• Built-in Tools — Generate documents and charts