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APEX Nexus· 12 min

Build on APEX Nexus

Integrate with the flagship EHR platform — architecture, auth, data domains, and first API call.

  1. 1

    Understand the platform

    APEX Nexus is the integrated clinical backbone at api.parkerapex.com — 663+ production routes, FHIR R4, GPID identity, semantic layer, and 30+ Flask modules. Start at the Nexus Platform Hub.

    bash
    https://developers.parkerapex.com/nexus
  2. 2

    Choose your data domain

    Clinical EHR (patients, meds, imaging), FHIR interoperability, Identity/GPID, Semantic queries (Horizon), or Exchange (TEFCA, Beacon). Each domain has dedicated OpenAPI specs and rate limits.

  3. 3

    Register partner credentials

    Apply via the developer portal, then issue scoped API keys or OAuth 2.0 clients with the minimum scopes for your integration.

    bash
    https://developers.parkerapex.com/tokens
  4. 4

    Verify platform health

    Confirm connectivity to production before deeper integration.

    bash
    "text">-amber-300 font">-semibold">curl "text-cyan-300">-s https://api.parkerapex.com/health | "text">-amber-300 font">-semibold">jq '.status'
  5. 5

    Browse the full route catalog

    Search production routes by HTTP method and data domain in the API Explorer. The full catalog requires a signed-in partner account.

    bash
    https://developers.parkerapex.com/explorer

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