> ## Documentation Index
> Fetch the complete documentation index at: https://platform-docs.sarj.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

Sarj Speech APIs provide production-ready speech services for Arabic and multilingual applications.

The platform currently offers:

* **Speech-to-Text (STT)** — Convert audio into accurate text with low latency.
* **Text-to-Speech (TTS)** — Generate natural, expressive speech from text, including support for voice cloning.

These APIs are designed for conversational AI, voice assistants, telephony, accessibility, media generation, and other speech-enabled applications.

## Authentication

All Speech API requests require an API key.

Include your API key in the `Authorization` header of every request.

**Authorization:** `Bearer YOUR_API_KEY`

## Base URLs

### Speech-to-Text

`https://stt-rnnt-ar.sarj.ai`

### Text-to-Speech

`https://sarj-omni-tts.sarj.ai`

## Available APIs

### Speech-to-Text

Endpoint:

`POST /openai/v1/audio/transcriptions`

Learn how to transcribe audio into text, supported request parameters, response formats, and usage examples in the **Speech-to-Text** guide.

### Text-to-Speech

Endpoint:

`POST /v1/audio/speech`

Generate high-quality speech from text using one of the available voices. Voice cloning is also supported through the Text-to-Speech API.