post
https://api.clientpay.com/v2/connect/postingrecord/count
Pass in query parameters and get back a count of posting records that match. You can then use the count to determine page and page size for the postingrecord/results endpoint.
Syntax can be a bit tricky here, but that's because this endpoint supports any number of nested groupings of conditions/criteria. The conditions field acts only as an array of criteria objects.