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

# Common Node Types

## Common Node Types

**What These Are:** The building blocks of your workflows. Each node type does a specific job in your automation pipeline.

**Important:** You configure these visually in Agent Studio - the JSON examples below are just to show you what gets generated.

### 1. Input Node - Define Parameters

**What It Does:** Defines what data your workflow needs to run (like function parameters).

**When You Use It:** Every workflow needs this to define what data comes in.

**Example Use Cases:** Customer message, file upload, user preferences, priority level

```json theme={null}
{
  "name": "user_input",
  "function": "inputs",
  "params": {
    "keys": {
      "customer_message": "string",    // What the customer wrote
      "priority": "string",            // urgent, normal, low  
      "customer_email": "string"       // For follow-up
    }
  }
}
```

**How to Configure:** In Agent Studio, drag an "Input" node, then define each input field you need.

***

### 2. AI Agent Node - Process with AI

**What It Does:** Sends data to your AI agent for processing (analysis, generation, decision-making).

**When You Use It:** When you need AI to understand, analyze, or generate content from your data.

**Example Use Cases:** Sentiment analysis, content generation, data extraction, classification

```json theme={null}
{
  "name": "ai_processor",
  "function": "agent",
  "params": {
    "config": {
      "agent_id": "your_agent_id",        // Which AI agent to use
      "api_key": "your_agent_key"         // Authentication
    },
    "query": {"depends": "user_input"}     // Gets data from input node
  }
}
```

**How to Configure:** In Agent Studio, drag "Agent" node, select your AI agent, it automatically connects to previous nodes.

**What You Get Back:** AI agent's response/analysis that you can use in subsequent nodes.

***

### 3. API Call Node - External Integration

**What It Does:** Calls your existing systems (CRM, databases, notification services, etc.).

**When You Use It:** When you need to update external systems or get data from them.

**Example Use Cases:** Update Salesforce, send Slack notifications, query databases, call webhooks

```json theme={null}
{
  "name": "update_crm", 
  "function": "api",
  "params": {
    "config": {
      "url": "https://your-crm.com/api/tickets",
      "method": "POST",                     // GET, POST, PUT, DELETE
      "headers": {"Authorization": "Bearer token"}
    },
    "BODY_data": {"depends": "ai_processor"} // Sends AI agent's output
  }
}
```

**How to Configure:** In Agent Studio, drag "API" node, enter URL and method, map data from previous nodes.

**Enterprise Power:** This is how you integrate workflows with ALL your existing systems.

***

### 4. Conditional Node - Smart Routing

**What It Does:** Uses AI to make decisions about where the workflow should go next.

**When You Use It:** When you need intelligent branching based on content, not just simple if/then rules.

**Example Use Cases:** Route based on sentiment, escalate high-priority issues, approve/reject based on AI analysis

```json theme={null}
{
  "name": "quality_check",
  "function": "gpt_conditional", 
  "params": {
    "openai_api_key": "sk-...",
    "condition": "confidence > 0.8",         // AI evaluates this condition
    "context": {"depends": "ai_processor"},   // Data for AI to analyze
    "true": "auto_approve",                   // Node to go to if true
    "false": "human_review"                   // Node to go to if false  
  }
}
```

**How to Configure:** In Agent Studio, drag "Conditional" node, set your condition, connect true/false paths to different nodes.

**Why This Is Powerful:** AI makes nuanced decisions that simple if/then rules can't handle.

***