Quickstart
Make your first speech request in a few minutes.
Choose your API
REST vs. HTTP streaming vs. WebSocket, pick the right transport.
Voices
Browse the stock voice catalog.
API reference
Every endpoint, parameter, and response.
What you can build
- Voiceovers and narration, turn scripts and articles into audio.
- Conversational agents, stream speech into IVR, support bots, and voice assistants with low latency.
- Accessibility, read content aloud in English and Indian languages.
How it works
Get an API key
Create a key in the dashboard and send it in the
chariotai-api-key header. See Authentication.Pick a voice
List the voice catalog and copy a
voice_id.Synthesize
Call
POST /v1/tts for a complete file, or stream for low latency.Track usage
Each response reports the credits charged; check your balance any time with
GET /v1/credits.Core concepts
| Concept | Summary |
|---|---|
| Credits | Usage is metered in credits. TTS costs 1 credit per input character. See Credits & pricing. |
| Concurrency | Each plan allows a fixed number of simultaneous requests. See Rate limits & concurrency. |
| Voices | Ready-to-use voices across English and Indian languages and accents. |
| Models | v0 is the current TTS model. See Models. |