3 EHRS. Same URL pattern. You don't need a hospital partnership to start integrating against the EHR. mock.health emulates how each EHR actually behaves at the wire — search-param subsets, OperationOutcome formats, US Core deviations, SMART on FHIR variants. The map is the artifact. The sandbox is the product.
~3,800 production FHIR endpoints harvested from the Brands Bundles, plotted by CapabilityStatement-shape cluster. Browse the map: Epic publishes one CapStmt; production hospitals deploy nine distinct shapes of it. 135 hospitals are outliers — they advertise different resources or different US Core profile support than what the vendor publishes. Per-EHR overlays cover Epic (189 element-level deviations), Oracle Health / Cerner (176; both provider and patient host fronts), and Meditech — every claim source-cited.
Built on Synthea with a Markov progression module trained on 4.4 million real patient journeys. Correlated conditions, medications, labs that trend the right direction, narrative radiology reports, real DICOM imaging studies, discharge summaries, and clinical notes. Open Epic gives you 8 patients with one condition each. mock.health gives you a population. US Core 6.1 / USCDI v3 compliant out of the box.
One canonical patient set. Three EHR-shaped endpoints. Same data underneath; vendor-flavored at the wire. Build once, integrate three times. CapabilityStatements, search-param subsets, OperationOutcome formats, and SMART on FHIR variants all match the source EHR. You discover the integration's edge cases on a Tuesday, not on go-live.
Need Neuro ICU patients with Glasgow Coma Scale scores and TCD velocities? Cardiology with heart-failure histories? Oncology with staging and chemotherapy regimens? Tell the nighthawk before EOD; tagged in your sandbox by morning. No PM, no ticket queue, no roadmap committee.
No partner application. No 3-month onboarding. No "apply for a developer account." Sign up, get a token, hit the URL. Pricing: Free for read-only, Pro at $199/month for thousands of patients with clinical depth and custom cohorts, Studio at $499/month for the per-EHR-flavored endpoints + the map, Enterprise for SLA and white-label.
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