Get podcast catalog statistics

Returns live, catalog-wide statistics: how many podcasts the catalog covers, broken out by classification, how many episodes were added within recent trailing windows, and how many episodes are transcribed and how many more in podcasts' back catalogues are requestable. The podcast and added counts update as new podcasts and episodes are ingested and are cached for up to a minute, so they can drive live counters; the episode totals refresh hourly. This endpoint is free and requires no API key.