npm · fhirhydrant
$npx -y fhirhydrant@0.17.3 MCP_TRANSPORT (required) — Run the installed package over MCP stdio.
FHIR_AUTH (required) — FHIR authentication mode. Use none only for an unauthenticated FHIR endpoint.
FHIR_SERVER_URL (required) — Full base URL of the FHIR API, such as https://fhir.example.org/fhir/R4.
FHIR_TOKEN_URL — SMART Backend Services token endpoint. Required when FHIR_AUTH=smart unless it can be derived from FHIR_BASE_URL.
FHIR_CLIENT_ID — SMART Backend Services client ID. Required when FHIR_AUTH=smart.
FHIR_ACTIVE_KEY · secret — Base64-encoded PKCS#8 private signing key. Required when FHIR_AUTH=smart.
FHIR_JWKS_URL — Externally reachable JWKS URL for the signing key. Recommended for SMART authentication over stdio.
FHIR_VERSION — FHIR release used for FHIRPath and response shaping.