# ai_analytics_orgs_users_costs_peruser_retrieve Retrieve LLM usage costs aggregated by user. This endpoint returns data on the total cost of LLM usage for each user within a specified date range, with pagination support. The costs are calculated by summing the costs of all observations associated with traces from the user's sessions. Args: request: The HTTP request containing filter query parameters. org: Organization key identifier. Returns: Response: Paginated list of users with their total LLM usage costs. Raises: NotFound: If the specified organization does not exist. BadRequest: If the provided parameters are invalid. Query Parameters: start_date (str): Start date for filtering (YYYY-MM-DD) - required. end_date (str): End date for filtering (YYYY-MM-DD) - required. limit (int): Number of results per page - default: 10. offset (int): Offset for pagination - default: 0. Endpoint: GET /api/ai-analytics/orgs/{org}/users/{user_id}/costs/peruser/ Version: 3.59.0-ai-plus Security: PlatformApiKeyAuthentication ## Query parameters: - `end_date` (string, required) - `start_date` (string, required) ## Path parameters: - `org` (string, required) - `user_id` (string, required) ## Response 200 fields (application/json): - `id` (string, required) - `name` (string, required) - `date` (string, required)