API docs v1
POST /v1/brands/{brand_id}/content-preferences/voice-extractions

Learn this brand's voice from its site

scope write:content cost 3 RU rate-limit 10/minute · key idempotent required

Read up to five of the brand's own posts and describe how it writes: persona, sentence length, reading level, formatting habits, recurring phrases, words to avoid and a writing style. It is saved as voice_profile and changes nothing else: copy what fits into writing_style and banned_phrases with the PATCH. The first time on a brand is free (the brand's first article also learns it); after that it costs 1 credit. A site with too little readable text answers 400. Requires the brand owner on Starter or with an active API subscription.

Path parameters

Query parameters

  • dry_run boolean optional

    Preview the call without executing it. Runs auth, scope, eligibility and body validation, then returns 200 with a dry_run object reporting the request-unit and credit cost plus a non-consuming quota snapshot. Nothing is debited, reserved, dispatched or mutated. An invalid body still returns 422.

    default: false

Header parameters

  • Idempotency-Key string required

    Required with an API key, else 400 idempotency_key_required: a new value per operation (a UUID works). A retry with the same key and body within 24 hours replays the first response instead of running again. Ignored with dry_run=true.

Responses

Learn this brand's voice from its site application/json
Type: ContentPreferences
  • banned_phrases array of string

    Phrases the article must not use, whatever the topic.

  • default_length enum

    How long articles run unless a brief sets content_context.length. auto follows the median length of the readable top Google results for the keyword (times 1.1); short, standard and long are about 800, 1,500 and 2,500 words. All of them are held inside the content type's bounds.

    default: `auto`

  • image_style string (nullable) nullable

    How generated images should look.

  • language string (nullable) nullable

    Language to write in; the brand's own when null.

  • object string

    default: `content_preferences`

  • tone string (nullable) nullable

    How it should sound, in your words.

  • tools object

    The brand's default for each AI tool its articles may use: on, off or auto (the run decides from the format, the site index, the knowledge base and the results page). A tool not listed is auto. A brief overrides any of them in content_context.tools.

    Show fields

    Empty object (no properties).

  • voice_extracted_at string (nullable) nullable

    When the voice was last learned.

  • voice_profile VoiceProfile (nullable) nullable

    The voice learned from the brand's own posts, or null before it is learned. Generation does not read it: copy what fits into writing_style and banned_phrases.

  • writing_style string (nullable) nullable

    Structure and habits: length, lists, tables.

Example response 
{
  "auto_interlink": true,
  "banned_phrases": [
    "game changer",
    "in today's fast-paced world"
  ],
  "default_length": "auto",
  "image_style": "Flat illustration, purple accents",
  "language": "English",
  "object": "content_preferences",
  "tone": "Direct and technical, no hype",
  "writing_style": "Short paragraphs, real numbers, a table when comparing"
}
Request validation failed application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "validation_error",
    "message": "Request validation failed"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
Missing or invalid credentials application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "unauthorized",
    "message": "Missing or invalid credentials"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
Not enough credits to complete this operation application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "insufficient_credits",
    "message": "Not enough credits to complete this operation"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
You do not have permission to access this resource application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "forbidden",
    "message": "You do not have permission to access this resource"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
Resource not found application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "not_found",
    "message": "Resource not found"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
Resource conflict application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "conflict",
    "message": "Resource conflict"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
Per-minute rate limit exceeded application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "rate_limit_exceeded",
    "message": "Per-minute rate limit exceeded"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
An unexpected error occurred application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "internal_error",
    "message": "An unexpected error occurred"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}
Service temporarily unavailable, please retry application/json
Type: ApiError
  • error object required
    Show fields
    • code string required

      Stable machine-readable error code from the catalog.

    • message string required

      Human-readable description suitable for logging.

    • details object

      Optional, code-specific context (e.g. errors array for validation_error, retry_after for service_unavailable). Shape depends on error.code; treat as opaque otherwise.

      Show fields

      Empty object (no properties).

  • request_id string

    Server-generated correlation id for the request. Mirrors the X-Correlation-ID response header. Include this when contacting support.

    format: `uuid`

Example response 
{
  "error": {
    "code": "service_unavailable",
    "message": "Service temporarily unavailable, please retry"
  },
  "request_id": "9f6c4e8a-1d3b-4c8b-9f1e-7a3b1c2d3e4f"
}