Introduction

AI-Native Phone Infrastructure for Emerging Markets

KrosAI is the developer platform for connecting AI voice agents to real phone numbers. We handle the complex telephony infrastructure so you can focus on building great voice experiences.

What is KrosAI?

KrosAI bridges the gap between AI voice agents and traditional phone networks. Whether you're building customer support bots, sales automation, or appointment scheduling systems, KrosAI provides the infrastructure to make and receive real phone calls.

With KrosAI, you can:

• Connect any AI agent to phone numbers - ElevenLabs, Vapi, Retell, LiveKit, or your custom voice agent

• Provision local numbers in emerging markets - Africa (Nigeria, Kenya, Ghana, South Africa) and MENA (UAE, Egypt)

• Simple API & SDK - Get your first call working in under 5 minutes

• Full observability - Call logs, recordings, transcripts, and analytics

How it works

1

Your AI agent

Produces audio output (speech synthesis).

2

KrosAI Bridge

Handles WebRTC/SIP conversion and routes audio to/from phone networks.

3

Phone Network

Connects to real phones via local numbers in your target markets.

Key capabilities

Feature	Description
Sub-second latency	Optimized audio routing for natural conversations
Emerging market coverage	Local numbers in Nigeria, Kenya, UAE, Ghana, and more
Simple SDK	Connect your agent in 10 lines of code
Real-time events	Webhooks for call.started, call.ended, transcription, etc.
Per-second billing	Pay only for the time you use
Call recordings	Automatic recording with transcript generation

Choose your path

Phone Calls (5-minute quickstart)

Build your first voice agent in 5 minutes

Create an AI-powered phone line that can make and receive calls. Perfect for customer support, sales automation, and appointment booking.

→ Get Started with Phone Calls

💻 Web Integration (Voice SDK)

Embed voice in your app

Use our React SDK to add phone calling capabilities directly to your web application.

→ Get Started with Voice SDK

Supported AI providers

Provider	Integration Type	Best For
ElevenLabs	WebRTC/SIP	Natural conversation, voice cloning, multilingual
Vapi	SIP	Structured workflows, tool calling, function execution
Retell	SIP	Low-latency, custom LLMs, enterprise deployments
LiveKit	WebRTC	Real-time collaboration, multi-party calls
Custom/Webhook	HTTP	Your own voice infrastructure

Quick links

• API Reference - Full REST API documentation

• Voice SDK Reference - JavaScript/TypeScript SDK

• Webhooks - Real-time event notifications

• Error Codes - Troubleshooting guide

• Rate Limits - API limits and best practices