# Get health score history

Retrieve historical health score data over time.
Use this to track trends and improvements in your sending reputation.

Endpoint: GET /api/customer/health-score/history
Version: 1.0.0
Security: ApiKeyAuth

## Query parameters:

  - `days` (integer)
    Number of days of history to retrieve

## Response 200 fields (application/json):

  - `history` (array)

  - `history.date` (string)

  - `history.overall_score` (number)

  - `history.delivery_rate` (number)

  - `history.open_rate` (number)

  - `history.click_rate` (number)

  - `history.bounce_rate` (number)

  - `history.complaint_rate` (number)

  - `period_days` (integer)

## Response 401 fields (application/json):

  - `error` (string)
    Error code or message