# catalog_milestones_completions_program_query_retrieve

Retrieve program completion information

Endpoint: GET /api/catalog/milestones/completions/program/query/
Version: 3.59.0-ai-plus
Security: PlatformApiKeyAuthentication

## Query parameters:

  - `program_key` (string, required)
    The unique identifier for the program

  - `user_id` (integer)
    The user identifier (either user_id or username required)

  - `username` (string)
    The username (either user_id or username required)

## Response 200 fields (application/json):

  - `count` (integer, required)
    Total number of courses in the program

  - `completion_percentage` (number, required)
    Overall completion percentage for the program (0.0 to 1.0)