curl -X GET 'https://api.elevenlabs.io/v1/studio/projects/project-id/chapters/chapter-id' \
  -H "xi-api-key: $ELEVENLABS_API_KEY"

# GET /v1/studio/projects/{project_id}/chapters/{chapter_id} (ElevenLabs API)
Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03

> Get Chapter

## Critical Gotchas
* Authentication uses the non-standard `xi-api-key` header, not `Authorization: Bearer`. Sending a Bearer token returns HTTP 401.
* Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (`--output speech.mp3`) rather than parsing it.

## cURL
curl -X GET 'https://api.elevenlabs.io/v1/studio/projects/project-id/chapters/chapter-id' \
  -H "xi-api-key: $ELEVENLABS_API_KEY"

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| project_id | path | string | Yes | The ID of the Studio project. |
| chapter_id | path | string | Yes | The ID of the chapter. |

## Response (200 OK)
{"can_be_downloaded":true,"chapter_id":"aw1NgEzBg83R7vgmiJt6"}

---
Need an API key? Get one at https://elevenlabs.io/app/sign-up

GET

/v1/studio/projects/{project_id}/chapters/{chapter_id}

ElevenLabs API

Get Chapter

Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03 · upstream hash matched

Actions

Agents: curl -H "Accept: text/markdown" this URL
→ 179 tokens · Vary: Accept

Critical gotchas

Authentication uses the non-standard xi-api-key header, not Authorization: Bearer. Sending a Bearer token returns HTTP 401.

Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (--output speech.mp3) rather than parsing it.

cURL

curl -X GET 'https://api.elevenlabs.io/v1/studio/projects/project-id/chapters/chapter-id' \  -H "xi-api-key: $ELEVENLABS_API_KEY"

Get a free ElevenLabs API key → sponsored

Parameters

Name	In	Type	Required	Description
project_id	path	string	Yes	The ID of the Studio project.
chapter_id	path	string	Yes	The ID of the chapter.

Response 200 OK

{
  "can_be_downloaded": true,
  "chapter_id": "aw1NgEzBg83R7vgmiJt6",
  "content": {
    "blocks": []
  },
  "conversion_progress": 0.5,
  "last_conversion_date_unix": 1714204800,
  "name": "Chapter 1",
  "state": "default",
  "statistics": {
    "characters_converted": 200,
    "characters_unconverted": 100,
    "paragraphs_converted": 5,
    "paragraphs_unconverted": 3
  }
}