The ClearPath API project was a pilot program started in 2013 for use by a selected set of independent application developers. At present time, no new developers are being accepted into the pilot program. The decision on whether to formally launch the API in its present form or a modified form as a production platform will be made based on feedback from Pilot program developers.

Note that the same data returned by the Crimes API Calls is downloadable in bulk form from the City of Chicago data portal.

https://data.cityofchicago.org/Public-Safety/Crimes-2001-to-present/ijzp-q8t2