Cisco EoX API
The EoX API returns Cisco end-of-life and end-of-support milestones for hardware and software, queried by product ID, serial number, software release string, or a date range across all products. It is the machine-readable form of the Cisco End-of-Life bulletins, and the API an enterprise uses to reconcile an installed base against Cisco's lifecycle calendar. Batches are capped at 20 identifiers per request and the page index is a path segment rather than a query parameter.