Returns one sheet's usage in the requested window: totals, a per-day trend, the actions that spent the credits, the most frequent errors, the 20 most recent runs, and per-member spend. Defaults to the current calendar month (UTC).

sheet_id is one SHEET's id, as returned by List Workflow Usage — the same id the workflow endpoints take as {sheet_id}. Passing a workflow's main-sheet id reports that sheet alone, not the workflow's other sheets; for a workflow total, sum its rows in List Workflow Usage. An id that is not a UUID is a 400, so a 404 always means the window holds no usage for that sheet.

A key restricted by allowed_workflow_ids may only drill into sheets of the workflows on its list; the list endpoints are not filtered that way, because a filtered list would not add up to its own totals.

What the key can see. A key holding org:read (admin only) reports every member's runs and populates per_user. Any other key reports only the runs of the member who created it and leaves per_user empty — so a sheet only a colleague ran returns 404 for that key, even though the sheet exists.

Requires the billing:read scope, which every role holds.