# Chatterbox TTS API

> Provider: **Resemble-ai**
> Source: https://www.pixazo.ai/models/chatterbox

Advanced text-to-speech generation.

## Chatterbox v1

### Text to Speech

## Base URL

```
https://gateway.pixazo.ai/chatterbox-text-to-speech/v1
```

## Authentication

All requests require an API key passed via header.

Header

Type

Required

Description

Ocp-Apim-Subscription-Key

string

Yes

Your API subscription key

## Chatterbox Text to Speech generate request - Chatterbox Text to Speech API

## Request Code

HTTP Python JavaScript cURL

```
POST https://gateway.pixazo.ai/chatterbox-text-to-speech/v1/chatterbox-text-to-speech-request
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_SUBSCRIPTION_KEY

{
  "text": "Hello world, this is a test of the Chatterbox text to speech model.",
  "audio_url": "https://storage.googleapis.com/chatterbox-demo-samples/prompts/male_rickmorty.mp3",
  "exaggeration": 0.25,
  "temperature": 0.7,
  "cfg": 0.5
}
```

```
import requests

url = "https://gateway.pixazo.ai/chatterbox-text-to-speech/v1/chatterbox-text-to-speech-request"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_SUBSCRIPTION_KEY"
}
data = {
    "text": "Hello world, this is a test of the Chatterbox text to speech model.",
    "audio_url": "https://storage.googleapis.com/chatterbox-demo-samples/prompts/male_rickmorty.mp3",
    "exaggeration": 0.25,
    "temperature": 0.7,
    "cfg": 0.5
}

response = requests.post(url, json=data, headers=headers)
print(response.json())
```

```
const url = 'https://gateway.pixazo.ai/chatterbox-text-to-speech/v1/chatterbox-text-to-speech-request';

const data = {
  text: 'Hello world, this is a test of the Chatterbox text to speech model.',
  audio_url: 'https://storage.googleapis.com/chatterbox-demo-samples/prompts/male_rickmorty.mp3',
  exaggeration: 0.25,
  temperature: 0.7,
  cfg: 0.5
};

fetch(url, {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Cache-Control': 'no-cache',
    'Ocp-Apim-Subscription-Key': 'YOUR_SUBSCRIPTION_KEY'
  },
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));
```

```
curl -X POST "https://gateway.pixazo.ai/chatterbox-text-to-speech/v1/chatterbox-text-to-speech-request" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_SUBSCRIPTION_KEY" \
  --data-raw '{
    "text": "Hello world, this is a test of the Chatterbox text to speech model.",
    "audio_url": "https://storage.googleapis.com/chatterbox-demo-samples/prompts/male_rickmorty.mp3",
    "exaggeration": 0.25,
    "temperature": 0.7,
    "cfg": 0.5
  }'
```

## Output

```
{
  "request_id": "chatterbox-text-to-speech_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/chatterbox-text-to-speech_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
```

[Try Now](https://api.pixazo.ai/api-details#api=chatterbox-text-to-speech-api&operation=chatterbox-text-to-speech-request)

## Webhook (Optional)

Add the `X-Webhook-URL` header to your generate request to receive a POST callback instead of polling.

```
X-Webhook-URL: https://your-server.com/webhook/callback
```

## Request Parameters - Chatterbox Text to Speech generate request

Parameter

Required

Type

Description

text

Yes

string

The textual content to convert into speech. Must be a valid string of readable language.

audio\_url

No

string

A URL pointing to an audio file (e.g., MP3) to serve as a voice reference. Used to clone or adapt the speaking style.

exaggeration

No

number

Controls the degree of expressive emphasis in the generated speech. Higher values increase modulation (e.g., intonation, stress). Range: 0.0 to 1.0.

temperature

No

number

Controls randomness in voice generation. Higher values increase variability in pitch and timing; lower values produce more consistent, predictable speech. Range: 0.1 to 1.0.

cfg

No

number

Classifier-Free Guidance strength. Influences how closely the output adheres to the input prompt and reference audio. Higher values increase fidelity. Range: 0.0 to 2.0.

## Example Request

```
{
  "text": "Hello world, this is a test of the Chatterbox text to speech model.",
  "audio_url": "https://storage.googleapis.com/chatterbox-demo-samples/prompts/male_rickmorty.mp3",
  "exaggeration": 0.25,
  "temperature": 0.7,
  "cfg": 0.5
}
```

## Response

```
{
  "request_id": "chatterbox-text-to-speech_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/chatterbox-text-to-speech_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
```

## Request Headers

Header

Value

Content-Type

application/json

Cache-Control

no-cache

Ocp-Apim-Subscription-Key

YOUR\_SUBSCRIPTION\_KEY

## Response Handling

Common status codes.

Code

Meaning

202

Accepted — Request queued

400

Bad Request

401

Unauthorized

402

Insufficient Balance

403

Forbidden

429

Too Many Requests

500

Internal Server Error

## Error Responses

Queue system errors and model validation errors.

### Queue System Errors

```
// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance. Required: $0.01"
}
```

```
// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'chatterbox-text-to-speech' not found or is disabled"
}
```

### Error via Status/Webhook

```
{
  "request_id": "chatterbox-text-to-speech_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "chatterbox-text-to-speech",
  "error": "Description of the error",
  "output": null
}
```

## Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

### Endpoint

```
GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY
```

## cURL Example

```
curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/chatterbox-text-to-speech_019d42ce-bc92-7f98-8181-b42db433b9f2e"
```

## Response (Completed)

```
{
  "request_id": "chatterbox-text-to-speech_019d42ce-bc92-7f98-8181-b42db433b9f2e",
  "status": "COMPLETED",
  "model_id": "chatterbox-text-to-speech",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/chatterbox-text-to-speech_019d42ce-bc92-7f98-8181-b42db433b9f2e/output.wav"
    ],
    "media_type": "audio/wav"
  },
  "created_at": "2026-03-31T07:32:03.749Z",
  "updated_at": "2026-03-31T07:32:20.000Z",
  "completed_at": "2026-03-31T07:32:20.000Z"
}
```

## Response Fields

Field

Type

Description

request\_id

string

Unique request identifier

status

string

QUEUED, PROCESSING, COMPLETED, FAILED, or ERROR

model\_id

string

Model that processed the request

error

string|null

Error message if failed

output.media\_url

array

URLs to generated media (R2 CDN)

output.media\_type

string

MIME type (audio/wav)

created\_at

string

When request was created

completed\_at

string|null

When request completed

polling\_url

string

Status URL (initial response only)

## Status Values

Status

Description

QUEUED

Request accepted, waiting to be processed

PROCESSING

Being processed by the model

COMPLETED

Done — output contains the result

FAILED

Failed — check error field

ERROR

System error — not charged

## Status Flow

```
QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR
```

## Typical Workflow

1.  **Send a generate request** to the API endpoint
2.  **Save the `request_id`** from the response
3.  **Poll** every 5-10 seconds: `GET /v2/requests/status/{request_id}`
4.  **When `status` is `"COMPLETED"`**, download from `output.media_url`

**Tip:** Use `X-Webhook-URL` header to get a callback instead of polling.