Update Studio Project Content

POST https://api.elevenlabs.io/v1/studio/projects//content Content-Type: multipart/form-data

Updates Studio project content.

Reference: https://elevenlabs.io/docs/api-reference/studio/update-content

• https://api.elevenlabs.io (Production, default)
• https://api.us.elevenlabs.io (Production US)
• https://api.eu.residency.elevenlabs.io (Production EU)
• https://api.in.residency.elevenlabs.io (Production India)
• https://api.sg.residency.elevenlabs.io (Production Singapore)

• project_id (string, required) — The ID of the project to be used. You can use the List projects endpoint to list all the available projects.

This endpoint expects a multipart form containing an optional file.

• from_url (string, optional) — An optional URL from which we will extract content to initialize the Studio project. If this is set, 'from_url' and 'from_content' must be null. If neither 'from_url', 'from_document', 'from_content' are provided we will initialize the Studio project as blank.
• from_document (file, optional) — An optional .epub, .pdf, .txt or similar file can be provided. If provided, we will initialize the Studio project with its content. If this is set, 'from_url' and 'from_content' must be null. If neither 'from_url', 'from_document', 'from_content' are provided we will initialize the Studio project as blank.
• from_content_json (string, optional) — An optional content to initialize the Studio project with. If this is set, 'from_url' and 'from_document' must be null. If neither 'from_url', 'from_document', 'from_content' are provided we will initialize the Studio project as blank. Example: [{"name": "Chapter A", "blocks": [{"sub_type": "p", "nodes": [{"voice_id": "6lCwbsX1yVjD49QmpkT0", "text": "A", "type": "tts_node"}, {"voice_id": "6lCwbsX1yVjD49QmpkT1", "text": "B", "type": "tts_node"}]}, {"sub_type": "h1", "nodes": [{"voice_id": "6lCwbsX1yVjD49QmpkT0", "text": "C", "type": "tts_node"}, {"voice_id": "6lCwbsX1yVjD49QmpkT1", "text": "D", "type": "tts_node"}]}]}, {"name": "Chapter B", "blocks": [{"sub_type": "p", "nodes": [{"voice_id": "6lCwbsX1yVjD49QmpkT0", "text": "E", "type": "tts_node"}, {"voice_id": "6lCwbsX1yVjD49QmpkT1", "text": "F", "type": "tts_node"}]}, {"sub_type": "h2", "nodes": [{"voice_id": "6lCwbsX1yVjD49QmpkT0", "text": "G", "type": "tts_node"}, {"voice_id": "6lCwbsX1yVjD49QmpkT1", "text": "H", "type": "tts_node"}]}]}]
• auto_convert (boolean, optional) — Whether to auto convert the Studio project to audio or not.

Successful Response

• project (ProjectResponseModel, required)

Validation Error

• detail (list of ValidationError, optional)

• project_id (string, required) — The ID of the project.
• name (string, required) — The name of the project.
• create_date_unix (integer, required) — The creation date of the project.
• created_by_user_id (string, required, nullable) — The user ID who created the project.
• default_title_voice_ref_id (string, required) — The default title project voice reference ID.
• default_paragraph_voice_ref_id (string, required) — The default paragraph project voice reference ID.
• default_model_id (string, required) — The default model ID.
• can_be_downloaded (boolean, required) — Whether the project can be downloaded.
• volume_normalization (boolean, required) — Whether the project uses volume normalization.
• state (enum, required) — The state of the project.
  • Allowed values: creating, default, converting, in_queue
• access_level (enum, required) — The access level of the project.
  • Allowed values: admin, editor, commenter, viewer
• quality_check_on (boolean, required, deprecated) — Whether quality check is enabled for this project.
• quality_check_on_when_bulk_convert (boolean, required, deprecated) — Whether quality check is enabled on the project when bulk converting.
• default_title_voice_id (string, required, deprecated) — The default title voice ID.
• default_paragraph_voice_id (string, required, deprecated) — The default paragraph voice ID.
• last_conversion_date_unix (integer, optional, nullable) — The last conversion date of the project.
• title (string, optional, nullable) — The title of the project.
• author (string, optional, nullable) — The author of the project.
• description (string, optional, nullable) — The description of the project.
• genres (list of string, optional, nullable) — List of genres of the project.
• cover_image_url (string, optional, nullable) — The cover image URL of the project.
• target_audience (enum, optional, nullable) — The target audience of the project.
  • Allowed values: children, young adult, adult, all ages
• language (string, optional, nullable) — Two-letter language code (ISO 639-1) of the language of the project.
• content_type (string, optional, nullable) — The content type of the project, e.g. 'Novel' or 'Short Story'
• original_publication_date (string, optional, nullable) — The original publication date of the project.
• mature_content (boolean, optional, nullable) — Whether the project contains mature content.
• isbn_number (string, optional, nullable) — The ISBN number of the project.
• fiction (enum, optional, nullable) — Whether the project is fiction.
  • Allowed values: fiction, non-fiction
• creation_meta (ProjectCreationMetaResponseModel, optional, nullable) — The creation meta of the project.
• source_type (enum, optional, nullable) — The source type of the project.
  • Allowed values: blank, book, article, genfm, video, screenplay
• chapters_enabled (boolean, optional, nullable, default: true) — Whether chapters are enabled for the project.
• captions_enabled (boolean, optional, nullable, default: true) — Whether captions are enabled for the project.
• caption_style (CaptionStyleModel, optional, nullable) — Global styling to be applied to all captions
• caption_style_template_overrides (map from string to CaptionStyleModel, optional, nullable) — Styling changes that have been made to the provided templates
• public_share_id (string, optional, nullable) — The public share ID of the project.
• aspect_ratio (enum, optional, nullable) — The aspect ratio of the project.
  • Allowed values: 16:9, 9:16, 4:5, 1:1
• agent_settings (StudioAgentSettingsModel, optional, nullable) — Agent-related settings for the project

• loc (list of ValidationErrorLocItems, required)
• msg (string, required)
• type (string, required)

• creation_progress (double, required) — The progress of the project creation.
• status (enum, required) — The status of the project creation action.
  • Allowed values: draft, pending, creating, finished, failed
• type (enum, required) — The type of the project creation action.
  • Allowed values: blank, generate_podcast, auto_assign_voices, dub_video, import_speech

• template (CaptionStyleTemplateModel, optional, nullable)
• text_font (string, optional, nullable)
• text_scale (double, optional, nullable)
• text_color (string, optional, nullable)
• text_align (enum, optional, nullable)
  • Allowed values: start, center, end
• text_style (enum, optional, nullable)
  • Allowed values: normal, italic
• text_weight (enum, optional, nullable)
  • Allowed values: normal, bold, 900
• text_transform (enum, optional, nullable)
  • Allowed values: none, uppercase
• text_blend_mode (enum, optional, nullable)
  • Allowed values: normal, difference, multiply
• text_shadow (StudioTextStyleShadowModel, optional, nullable)
• text_outline (StudioTextStyleOutlineModel, optional, nullable)
• background_enabled (boolean, optional, nullable)
• background_color (string, optional, nullable)
• background_opacity (double, optional, nullable)
• background_blur (double, optional, nullable)
• background_border_radius (double, optional, nullable)
• word_highlights_enabled (boolean, optional, nullable)
• word_highlights_color (string, optional, nullable)
• word_highlights_background_color (string, optional, nullable)
• word_highlights_opacity (double, optional, nullable)
• word_highlights_border_radius (double, optional, nullable)
• word_highlights_blur (double, optional, nullable)
• section_animation (CaptionStyleSectionAnimationModel, optional, nullable)
• word_animation (CaptionStyleWordAnimationModel, optional, nullable)
• character_animation (CaptionStyleCharacterAnimationModel, optional, nullable)
• cursor_enabled (boolean, optional, nullable)
• width_pct (double, optional, nullable)
• horizontal_placement (CaptionStyleHorizontalPlacementModel, optional, nullable)
• vertical_placement (CaptionStyleVerticalPlacementModel, optional, nullable)
• auto_break_enabled (boolean, optional, nullable)
• max_lines_per_section (integer, optional, nullable)
• max_words_per_line (integer, optional, nullable)

• tool_settings (map from string to StudioAgentToolSettingsModel, optional)

• key (string, required)
• label (string, required)
• requires_high_fps (boolean, optional, default: false)

• enabled (boolean, required)
• color (string, required)
• opacity (double, required)
• blur (double, required)
• offset_x (double, required)
• offset_y (double, required)

• enabled (boolean, required)
• color (string, required)
• opacity (double, required)
• width (double, required)

• enter_type (enum, required)
  • Allowed values: none, fade, scale, pop, slide_up, slide_down, slam, scale_down, slide_in
• exit_type (enum, required)
  • Allowed values: none, fade, scale, pop, slide_up, slide_down, slam, scale_down, slide_in

• enter_type (enum, required)
  • Allowed values: none, fade, scale, pop, slide_up, slide_down, slam, scale_down, slide_in
• exit_type (enum, required)
  • Allowed values: none, fade, scale, pop, slide_up, slide_down, slam, scale_down, slide_in

• enter_type (enum, required)
  • Allowed values: none, fade, typewriter
• exit_type (enum, required)
  • Allowed values: none, fade

• align (enum, required)
  • Allowed values: left, center, right
• translate_pct (double, required)

• align (enum, required)
  • Allowed values: top, center, bottom
• translate_pct (double, required)

• skip_confirmation (boolean, optional, default: false)

Request

{
  "from_document": "<file: <file1>>"
}

Response

{
  "project": {
    "project_id": "aw1NgEzBg83R7vgmiJt6",
    "name": "My Project",
    "create_date_unix": 1714204800,
    "created_by_user_id": "Vbtgl3bRdj6lk79rYAgx",
    "default_title_voice_ref_id": "JBFqnCBsd6RMkjVDRZzb",
    "default_paragraph_voice_ref_id": "JBFqnCBsd6RMkjVDRZzb",
    "default_model_id": "eleven_multilingual_v2",
    "can_be_downloaded": true,
    "volume_normalization": true,
    "state": "default",
    "access_level": "viewer",
    "quality_check_on": false,
    "quality_check_on_when_bulk_convert": false,
    "default_title_voice_id": "JBFqnCBsd6RMkjVDRZzb",
    "default_paragraph_voice_id": "JBFqnCBsd6RMkjVDRZzb",
    "last_conversion_date_unix": 1714204800,
    "title": "My Project",
    "author": "John Doe",
    "description": "This is a description of my project.",
    "genres": [
      "Novel",
      "Short Story"
    ],
    "cover_image_url": "https://example.com/cover.jpg",
    "target_audience": "young adult",
    "language": "en",
    "content_type": "Novel",
    "original_publication_date": "2025-01-01",
    "mature_content": false,
    "isbn_number": "978-90-274-3964-2",
    "fiction": "fiction",
    "creation_meta": {
      "creation_progress": 0.5,
      "status": "pending",
      "type": "blank"
    },
    "public_share_id": "abc123def456789"
  }
}

SDK Code

import { ElevenLabsClient } from "@elevenlabs/elevenlabs-js";

async function main() {
    const client = new ElevenLabsClient();
    await client.studio.projects.content.update("21m00Tcm4TlvDq8ikWAM", {});
}
main();

from elevenlabs import ElevenLabs

client = ElevenLabs()

client.studio.projects.content.update(
    project_id="21m00Tcm4TlvDq8ikWAM",
    from_document="example_from_document",
)

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.elevenlabs.io/v1/studio/projects/21m00Tcm4TlvDq8ikWAM/content"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"auto_convert\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_content_json\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_document\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_url\"\r\n\r\n\r\n-----011000010111000001101001--\r\n")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.elevenlabs.io/v1/studio/projects/21m00Tcm4TlvDq8ikWAM/content")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'multipart/form-data; boundary=---011000010111000001101001'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"auto_convert\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_content_json\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_document\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_url\"\r\n\r\n\r\n-----011000010111000001101001--\r\n"

response = http.request(request)
puts response.read_body

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.elevenlabs.io/v1/studio/projects/21m00Tcm4TlvDq8ikWAM/content")
  .header("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"auto_convert\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_content_json\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_document\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_url\"\r\n\r\n\r\n-----011000010111000001101001--\r\n")
  .asString();

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.elevenlabs.io/v1/studio/projects/21m00Tcm4TlvDq8ikWAM/content', [
  'multipart' => [
    [
        'name' => 'from_document',
        'filename' => '<file1>',
        'contents' => null
    ]
  ]
]);

echo $response->getBody();

using RestSharp;

var client = new RestClient("https://api.elevenlabs.io/v1/studio/projects/21m00Tcm4TlvDq8ikWAM/content");
var request = new RestRequest(Method.POST);
request.AddParameter("multipart/form-data; boundary=---011000010111000001101001", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"auto_convert\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_content_json\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_document\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"from_url\"\r\n\r\n\r\n-----011000010111000001101001--\r\n", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);

import Foundation

let headers = ["Content-Type": "multipart/form-data; boundary=---011000010111000001101001"]
let parameters = [
  [
    "name": "auto_convert",
    "value": 
  ],
  [
    "name": "from_content_json",
    "value": 
  ],
  [
    "name": "from_document",
    "fileName": "<file1>"
  ],
  [
    "name": "from_url",
    "value": 
  ]
]

let boundary = "---011000010111000001101001"

var body = ""
var error: NSError? = nil
for param in parameters {
  let paramName = param["name"]!
  body += "--\(boundary)\r\n"
  body += "Content-Disposition:form-data; name=\"\(paramName)\""
  if let filename = param["fileName"] {
    let contentType = param["content-type"]!
    let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
    if (error != nil) {
      print(error as Any)
    }
    body += "; filename=\"\(filename)\"\r\n"
    body += "Content-Type: \(contentType)\r\n\r\n"
    body += fileContent
  } else if let paramValue = param["value"] {
    body += "\r\n\r\n\(paramValue)"
  }
}

let request = NSMutableURLRequest(url: NSURL(string: "https://api.elevenlabs.io/v1/studio/projects/21m00Tcm4TlvDq8ikWAM/content")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()