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👋 Welcome to the Sell Agent API Documentation

This API enables seamless integration with your Voice-Based AI Agents and Telephony System. Whether you’re building a custom interface, automating call flows, or managing agent configurations programmatically — this API gives you complete control.

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🔐 Getting Started with Authentication

To begin using the API, you’ll need an API Key for secure access.
All endpoints require the x-api-key header for authentication. 📽️ Watch the video below to learn how to create your Sell Agent API key and get started in minutes.
After generating your API key, you can use it along with the optional x-workspace-id header to interact with:
  • AI Voice Agents
  • SIP-enabled Phone Numbers
  • Outbound Call Initiation
  • Call Log Retrieval & Filtering

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🛡️ Authentication Requirements

All API requests must include the following headers:
  • x-api-key: YOUR_API_KEY_HERE
  • Content-Type: application/json