Node Reference

The Script Builder provides a comprehensive suite of nodes to handle conversation flow, business logic, and integrations.

Nodes are organized by category in the Sidebar Palette.

Conversation

The core interaction loop between the human and the AI.

User Query

Defines an Intent or specific phrase the user might say.

Usage: Connect this after a Start Node or AI Response.
Matching: The LLM uses semantic matching. If you type "I want to buy," it will also match "I'm looking to purchase."
Multi-Language: You must define the query text for every enabled language.

AI Response

Defines what the Agent speaks.

Content: The text to be synthesized by TTS. Supports Templating (e.g., Hello {{ name }}).
Interruption: You can toggle whether the user is allowed to interrupt this specific phrase.
Multi-Language: Requires translated text.

Keep Listening

Forces the agent to keep the microphone open without speaking.

Use Case: When you expect the user to continue talking after a brief pause, or when you want to simulate "Active Listening" silence.

Action Flow

Deterministic logic containers. These nodes allow you to build strict business rules.

Deep Dive

Action Flows are powerful sub-routines. Read the full Action Flows Guide to learn how to group nodes and enforce strict logic.

Action Flow Group: The container for the sub-routine.
Condition: If/Else logic branching (e.g., If Balance > 0).
Wait: Pauses execution for a set duration.
Run Code: Execute a JavaScript sandbox to manipulate variables.
Go To Action: Jump to another step within the Flow.
Return: Exit the Flow and return control to the main graph.

Logic

State management and flow control.

Set Variable

Updates the value of a Script Variable.

Operation: Set, Increment, Decrement.
Value: Can be static (e.g., true) or dynamic (e.g., {{ tool.result }}).

Get Numerical Input

Requests specific keypad input (DTMF) from the user.

Settings: Max digits, Timeout, Terminator (#).
Encryption: If enabled, the value is Redacted from logs and the AI context. Useful for collecting IDs securely.

Transfer To Agent / Human

To Agent: Handoff the call to another AI Persona (e.g., Transfer from "Sales Bot" to "Support Bot").
To Human: SIP/PSTN forwarding to a live call center or phone number.

Change Language

Switches the entire agent configuration mid-call.

Effect: Swaps STT/TTS providers and the prompt context to the selected language immediately.

Send Event

Sends a JSON payload to the client via WebSocket.

Use Case: Updating the UI on a website or app (e.g., navigate_to_checkout) during a Web Campaign.

Webhook

Fires a "Fire-and-Forget" HTTP request to an external URL. Unlike Custom Tools, this does not wait for a response or return data to the AI.

Add Script

Injects the logic of another script into the current conversation context (e.g., injecting a global "FAQ Script" into a "Sales Script").

Schedule Call

Triggers an outbound call to be placed at a future time.

End Conversation

Terminates the connection.

Mode: Speak a final message (Goodbye) or hang up immediately.

Dynamic UI: These nodes render dropdowns and forms specific to the app.
Latency Masking: Configure Speaking Before Execution to fill dead air while the API loads.

Learn More

See how to use plugins in the FlowApps Guide.

Custom Tool

Executes a raw HTTP webhook defined in the Tools Module.

Use Case: Connecting to your own internal API or a service that doesn't have a FlowApp yet.

Retrieve Knowledgebase

Forces a manual RAG lookup.

Result: The retrieved document chunks are injected into the context for the next AI response.

Send SMS

Triggers a text message to the caller via your connected telephony provider.