The Lexware Public API is the documented interface through which external systems read Lexware data and control it within the permitted scope. Central Command uses it to obtain vouchers and related information for the command center. Authentication is done via API keys with the appropriate permissions.
APIs have limits: rate limits, error rates, and permitted status combinations. Central Command respects minimum intervals and uses caches so the UI does not turn every interaction into a live call. Sync jobs work instance by instance and with pauses to enable stable runs.
For integrations, the Public API is the contractual and technical truth of the connection. Changes on Lexware's side can affect clients; that is why the base URL and intervals remain configurable. The API is invisible to end users but decisive for the freshness and completeness of every dashboard number.
