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POST
/
api
/
v1
/
projects
/
{projectId}
/
chapters
{
  "id": "<string>",
  "project_id": "<string>",
  "name": "<string>",
  "duration": 123,
  "created_at": "<string>",
  "VALIDATION_ERROR": {},
  "NOT_FOUND": {}
}

​
Overview

Creates a new chapter within a project. Chapters are segments of your video that can have individual content and duration.

​
Request

​
Path Parameters

​
projectId
string
required
The project ID

​
Headers

​
Authorization
string
required
Bearer token with your API key
​
Content-Type
string
required
Must be application/json

​
Body

​
name
string
required
Chapter name (1-30 characters)
​
duration
number
Optional duration in seconds (must be positive integer)

​
Response

​
id
string
Unique chapter identifier (format: cht_[A-Za-z0-9]{21})
​
project_id
string
Parent project ID
​
name
string
Chapter name
​
duration
number
Duration in seconds
​
created_at
string
ISO 8601 timestamp when the chapter was created

​
Examples

curl -X POST https://api.babou.ai/api/v1/projects/prj_abc123xyz/chapters \
  -H "Authorization: Bearer $BABOU_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Introduction",
    "duration": 30
  }'

​
Response Example

{
  "id": "cht_def456uvw",
  "project_id": "prj_abc123xyz",
  "name": "Introduction",
  "duration": 30,
  "created_at": "2025-12-02T10:01:00Z"
}

​
Error Responses

​
VALIDATION_ERROR
400
Invalid request parameters
{
  "error": "Validation failed",
  "code": "VALIDATION_ERROR",
  "hint": "Name must be between 1 and 30 characters"
}
​
NOT_FOUND
404
Project not found
{
  "error": "Project not found",
  "code": "NOT_FOUND"
}

​
Next Steps

Submit Prompt

Add video content to this chapter

List Chapters

View all chapters in the project