get
https://{account}.piwik.pro/api/analytics/v1/manage/annotation/system/
Returns system annotations for the organization. Query parameter website_id is required: it selects the website for access-control (view permission) and filters results to annotations for that website plus annotations not scoped to a single website.
Please note that each request must be authenticated.
400Bad Request
403Forbidden (e.g. missing website_id, or caller lacks view on the requested website — permission resolution uses website_id).