For Health IT App Developers

Health IT Developers seeking to provide access to Health Link USCDI/EHI for patient end users can access published Application Programming Interface (API) endpoints for the Santa Clara production environment at


Health IT Developers who wish to obtain USCDI/EHI from CSCHS without using API standards (for example, a custom interface) must submit a written request through the Data Access Request (DAR) Process. You can download the form hereA tip sheet on completing this form can be found here.

Submit the completed request form to