List event properties
The catalog of custom event_data property keys this workspace sends, grouped by event name, each with how often it appeared, how many distinct values it took, one sample value, and its JSON type. Use it before property_filters on /events.
The counts come from a bounded SAMPLE of the most recent events in the window, not from the whole window: they rank keys, they do not measure them, and a low-volume event’s keys can be missed entirely. Pass event_name to spend the whole sample on one event, which is the reliable way to enumerate a rare event’s properties.
Top-level keys only. A nested object appears once with value_type object; its inner keys are not listed, and /events cannot filter on them either.
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Query Parameters
Restrict the sample to one event name. Omit to sample every event.
200How many days back to sample. The maximum equals the source's 90-day retention.
1 <= x <= 90Maximum catalog rows returned, most frequent first.
1 <= x <= 500Response
Successful response. Sampled: counts rank property keys, they do not measure them.