- answers in milliseconds and never becomes an async job,
- keeps answering when the source is down or in maintenance,
- searches everything the source has published, not one record per call,
- spends 1 credit per request instead of the live 10 (see Rate limits).
as_of
Every dataset-served response carries as_of: the data is current up to that
moment.
Which endpoints are dataset-served?
The Dataset pill in each guide and
served_from in the
/catalog are always current.
Live lookups
The other answer mode: the source itself, queried at request time.