Welcome to the Vozzo Make Call API documentation. Instantly place AI-powered voice calls to one or more recipients using a single API request—perfect for real-time outreach, notifications, and conversational automation.
What is the Make Call API?
The Make Call API allows you to trigger outbound calls on demand using a Vozzo AI agent. Unlike campaigns (which are designed for large-scale orchestration), this endpoint is optimized for immediate or scheduled individual calls with full control over timing, language, metadata, and post-call evaluation.
Common use cases include:
- One-off customer support callbacks
- Instant lead engagement
- Appointment confirmations
- Internal alerts or escalations
API Architecture
The Vozzo Campaign API follows RESTful principles with JSON payloads and standard HTTP methods:
- Authentication: Bearer token-based security with API keys
- Base URL: https://backend.vozzo.ai
- Format: JSON request and response bodies
- Endpoint: API version included in endpoint paths (
POST /v1alpha/dispatcher)
Trigger Calls Instantly
Start a voice call immediately or schedule it for later with fine-grained time window controls, timezone handling, and agent configuration.
What you need to make a call
Before calling the API, ensure you have:
- 1.
API Key: Your Vozzo Bearer token
- 2.
Agent UUID: The AI agent that will handle the call
- 3.
Phone Number: Recipient phone number in E.164 format
- 4.
Schedule Config: Time window and timezone preferences
How the Make Call Flow Works
Select an AI agent using agent_uuid
Define scheduling rules (date, time window, weekends)
Attach recipient-specific metadata (name, context, language)
Vozzo places the call and tracks execution automatically
Endpoint Overview
Make a Call
POST /v1alpha/dispatcherTrigger a new outbound call
Ready to Make Your First Call?
Head over to the request examples to see how to trigger a call using Postman or code.
Last updated: January 2026 | API Version: v1alpha