---
canonical: "https://www.softatlas.io/inworld/products/realtime-api"
name: "Realtime API"
provider: "Inworld"
category: "Artificial Intelligence / Generative Media & Voice AI / Speech-to-Text APIs"
review_count: 0
ai_powered: true
website: "https://inworld.ai/realtime-api"
updated: "2026-10-06"
---

# Realtime API

By [Inworld](/inworld.md)

The Realtime API provides controllable speech-to-speech capabilities that understand, reason, and interact, allowing for full-duplex audio streaming and dynamic context management.

## Features
- Integrate with AI using WebSocket for full-duplex audio streaming
- Configure real-time speech-to-speech sessions with sub-second latency
- Select and switch between hundreds of LLMs without changing integration
- Render native steering tags and non-verbal cues inline
- Fine-tune turn detection with context-aware semantic VAD
- Optimize data flow for end-to-end speech-to-speech latency under one second
- Register tools for agentic use cases like reservation lookup
- Configure expressive TTS output with customizable voice models

## Built for
DEVELOPERS, CUSTOMER_SUPPORT

Source: https://www.softatlas.io/inworld/products/realtime-api