Account mode reads /api/analytics/account/total and /api/analytics/account/series.
Single-stream and multiple-stream modes read /api/analytics/streams/total and /api/analytics/streams/series for the stream names you provide.
Auto mode first reads /api/publish_token/list to discover configured stream names, then reads /api/monitoring/streams for recent stream names, then uses those names for analytics and the usage-share pie chart.