Previous CDX customers can access their accounts, web tools and support resources at
CDX Technologies
Real driving distances, demographics and ZIP intelligence from authoritative US and Canadian data. Three ways to get them, on one shared foundation: live in your spreadsheet, as a file you upload, or in Excel on your own mapping key.

Excel, Google Sheets, LibreOffice, the API or Claude, on credit plans. No Google or HERE key to manage.
Visit CDXGeoStream
Bulk enrichment in the browser. Pay per job or subscribe, with nothing to install and no mapping key to manage.
Visit CDXStreamer
Your own API key, no subscription and no credits. Built for high volume in Windows Excel.
Visit CDXZipStreamA driving route runs 20 to 40% longer than the straight line a spreadsheet estimates. That gap is the whole argument.
Windows Excel, Sheets, LibreOffice, your own code, an AI agent, or a file you upload. Same answers, same data.
Authoritative data sources and battle-tested calculations you can trust.
They differ on who carries the provider relationship, so the right one depends on your volume, not on a feature chart.
It comes down to volume and who manages the API keys. Run one file occasionally and CDXStreamer is the shortest path. Run tens of thousands of routes a month in Excel and CDXZipStream's own-key model costs a fraction per call.