From http://support.gnip.com/customer/portal/articles/745561-historical-powertrack-overview http://support.gnip.com/customer/portal/articles/745561-hist... "Th

From http://support.gnip.com/customer/portal/articles/745561-historical-powertrack-overview http://support.gnip.com/customer/portal/articles/745561-hist... "The Gnip Historical Power Track product is a job-based system and usage is reliant on a multiple-request API. Generation of data via the Historical Power Track product requires two distinct steps: requesting a job quote/estimate (including projected cost, data volume, and time) and accepting or rejecting a job quote/estimate." (Disclaimer: I work for Gnip)