# Get Archive Usage Metrics Get total archive usage in bytes for a company by VAT ID. Endpoint: POST /rest/v1/billing/archive-usage Version: v1.0.0 Security: ## Request fields (application/json): - `vatNumber` (string, required) VAT number of the organization Example: "HR12345678901" ## Response 200 fields (application/json): - `metricName` (string, required) Name of the metric Example: "documents-out" - `metricUsage` (string, required) Usage value for the metric Example: "123"