Chatterbox API reference

Call Chatterbox from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.

At a glance

Made by: Resemble AI
Output: Audio
From: 5.4 credits per request ($0.054)
Model IDs: resemble-ai/chatterbox-v1/text-to-speech

1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.

Text to Speech

resemble-ai/chatterbox-v1/text-to-speech

Price

Option	Credits (per request)	US dollars
`Default`	5.4	$0.054

Parameters

Field	Type	Default	Allowed	What it does
`text`Required	`string`	—	up to 1,000 characters	Up to 1,000 characters of English, read exactly as written. Spell sounds out; tags are read aloud.
`reference_audio_url`Optional	`string (uri)`	—	—	Optional clip of the voice to imitate; the reading takes on its timbre.
`exaggeration`Optional	`number`	`0.5`	0 to 1	How emotional the reading is, from 0 (flat) to 1 (dramatic).
`temperature`Optional	`number`	`0.7`	0.05 to 2	Variation between takes, from 0.05 to 2.
`guidance_scale`Optional	`number`	`0.5`	0.1 to 1	How closely the reading follows the text's natural pacing, from 0.1 to 1.

Example request

This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.

POST /api/v1/jobs/createTask

curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "model": "resemble-ai/chatterbox-v1/text-to-speech",
  "input": {
    "text": "Hi there! This voice was created with the PopNow API in just a few seconds."
  }
}'

The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.

GET /api/v1/jobs/recordInfo

curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"