# Get Signal Options

Retrieve available signal options for a specific entity type (contact or company).
This endpoint returns the list of signal types you can filter by when enriching contacts or companies.


  Endpoints:

    * Contacts: GET /api/signals/filters/contact
    * Companies: GET /api/signals/filters/company


  ### Available Signal Types

  
    #### For contacts:

    * allSignals - All available contact signal types
    * promotion - Job title promotions  
    * companyChange - Company changes
    
    ---
    
    #### For companies:

      * allSignals - All available company signal types
    
    
    
    Hiring & Workforce:
    
    * surgeInHiring - Overall hiring activity increase
    * surgeInHiringByDepartment - Department-specific hiring surges
    * surgeInHiringByLocation - Location-specific hiring surges
    
    
    
      Headcount Trends:
    
    | Signal | Description |
    |--------|-------------|
    | headcountIncrease1m / headcountDecrease1m | 1-month employee count changes |
    | headcountIncrease3m / headcountDecrease3m | 3-month employee count changes |
    | headcountIncrease6m / headcountDecrease6m | 6-month employee count changes |
    | headcountIncrease12m / headcountDecrease12m | 12-month employee count changes |
    
    
    
      Technology & Digital Presence:
    
    * websiteTrafficIncrease - Website traffic growth
    * websiteTrafficDecrease - Website traffic decline
    * itSpendIncrease - IT spending increase
    * itSpendDecrease - IT spending decrease
    
  


    ##### News Event Categories          

    Each category includes the following event types:

    | Category | Event Types |
    |----------|------------|
  -->

Endpoint: GET /api/signals/filters/{objectType}
Security: ApiKeyAuth

## Path parameters:

  - `objectType` (string, required)
    The type of object to get signal options for
    Enum: "contact", "company"

## Response 200 fields (application/json):

  - `signals` (array)
    Example: ["promotion","companyChange"]

  - `objectType` (string)
    Example: "contact"

## Response 401 fields (application/json):

  - `statusCode` (integer, required)
    HTTP status code
    Example: 400

  - `message` (string, required)
    Error message
    Example: "Validation failed"

  - `errors` (array)
    Detailed error messages (optional, only for validation errors)
    Example: ["entityType must be one of: contact, company"]

## Response 403 fields (application/json):

  - `statusCode` (integer, required)
    HTTP status code
    Example: 400

  - `message` (string, required)
    Error message
    Example: "Validation failed"

  - `errors` (array)
    Detailed error messages (optional, only for validation errors)
    Example: ["entityType must be one of: contact, company"]