Venue Here Now

https://api.foursquare.com/v2/venues/VENUE_ID/herenow
Provides a count of how many people are at a given venue.

Returns a list of friends and friends-of-friends at the venue for authenticated requests. If the acting user is currently checked in to the venue, then a list of other users is also returned.

Authenticated requests by the manager of a venue will always return the list of users “here now” for that venue

Do not aggregate information from this endpoint across multiple venues.

This endpoint is part of the venues API.
HTTP MethodGET
Requires Acting UserYes (learn more)
Parameters
All parameters are optional, unless otherwise indicated.
VENUE_IDA9ABCDrequired ID of venue to retrieve
limit100Number of results to return, up to 500.
offset100Used to page through results.
Response fields
hereNowA count and items where items are checkins.

Try it out