Conversational flow agentsWorkflow tab

Variables

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Variables let you personalize conversations with dynamic data — caller information, API responses, or values you define.

Location: Workflow tab → Variables button (top right)

Variables panel

Variables panel

Variable Types

TypeSourceExample
User DefinedVariables you create{{company_name}}, {{promo_code}}
SystemPlatform-provided (read-only){{caller_phone}}, {{call_duration}}
APIExtracted from API responses{{customer_name}}, {{account_tier}}

Syntax

Use double curly braces anywhere in prompts or conditions:

Hello {{customer_name}}! Thanks for calling {{company_name}}.

Default Values

Handle missing variables with the pipe syntax:

Hello {{customer_name|there}}!

If customer_name is empty → “Hello there!”

System Variables

VariableDescription
{{caller_phone}}Caller’s phone number
{{call_time}}When call started
{{call_duration}}Elapsed seconds
{{call_direction}}”inbound” or “outbound”
{{agent_id}}This agent’s ID
{{call_id}}Unique call identifier

Creating Variables

  1. Click Variables in the workflow tab
  2. Go to User Defined tab
  3. Click + Add Variable
  4. Enter name and default value

Extracting from APIs

In API nodes, use Extract Response Data to create variables from responses:

JSONPathVariable
$.data.namecustomer_name
$.data.tieraccount_tier