openapi: 3.0.3
info:
  title: SMART Health IT Sandbox FHIR APIs
  description: >-
    Public, free sandbox APIs operated by SMART Health IT (Computational
    Health Informatics Program, Boston Children's Hospital / Harvard Medical
    School) for building and testing SMART on FHIR apps. Three surfaces are
    described here. (1) The open FHIR R4 sandbox at
    https://r4.smarthealthit.org - synthetic patient records served over plain
    FHIR REST with no authentication (DSTU2 and STU3 variants exist at
    r2/r3.smarthealthit.org). (2) The SMART App Launcher's protected FHIR R4
    proxy at https://launch.smarthealthit.org/v/r4/fhir, which requires an
    OAuth 2.0 access token obtained through the HL7 SMART App Launch flow at
    /v/r4/auth/authorize and /v/r4/auth/token (no client registration
    needed). (3) The reference Bulk Data server at
    https://bulk-data.smarthealthit.org/fhir, which implements FHIR Bulk Data
    $export with SMART Backend Services JWT authentication. All data is
    synthetic; these servers are for development and testing, never real PHI.
  version: '1.0'
  contact:
    name: SMART Health IT
    url: https://smarthealthit.org
  license:
    name: Apache 2.0
    url: https://github.com/smart-on-fhir/smart-launcher-v2/blob/main/LICENSE
externalDocs:
  description: SMART on FHIR developer documentation
  url: https://docs.smarthealthit.org
servers:
  - url: https://r4.smarthealthit.org
    description: Open FHIR R4 sandbox (no authentication required)
  - url: https://launch.smarthealthit.org/v/r4/fhir
    description: SMART App Launcher protected FHIR R4 proxy (SMART App Launch OAuth 2.0)
  - url: https://bulk-data.smarthealthit.org/fhir
    description: Reference Bulk Data server (SMART Backend Services authentication)
tags:
  - name: Conformance
    description: Server capability discovery.
  - name: Patients
    description: Synthetic patient demographic records.
  - name: Clinical Records
    description: Observations, conditions, medications, encounters, allergies, and immunizations.
  - name: SMART App Launch
    description: OAuth 2.0 authorization endpoints on the SMART App Launcher.
  - name: Bulk Data
    description: FHIR Bulk Data $export operations on the reference Bulk Data server.
paths:
  /metadata:
    get:
      operationId: getCapabilityStatement
      tags:
        - Conformance
      summary: Retrieve the FHIR CapabilityStatement
      description: >-
        Returns the server's FHIR R4 CapabilityStatement. On the launcher
        proxy the security section advertises the OAuth2 SMART-on-FHIR
        service with authorize, token, and introspect extension URIs.
      security: []
      responses:
        '200':
          description: The server CapabilityStatement.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/FhirResource'
  /Patient:
    get:
      operationId: searchPatients
      tags:
        - Patients
      summary: Search patients
      description: >-
        Searches synthetic Patient resources. Supports standard FHIR search
        parameters such as name, birthdate, gender, and _count. Returns a
        searchset Bundle.
      parameters:
        - $ref: '#/components/parameters/Count'
        - name: name
          in: query
          description: Match on patient name parts.
          schema:
            type: string
        - name: birthdate
          in: query
          description: Match on date of birth (supports FHIR date prefixes such as ge/le).
          schema:
            type: string
        - name: gender
          in: query
          description: Administrative gender code.
          schema:
            type: string
      responses:
        '200':
          description: A searchset Bundle of Patient resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /Patient/{id}:
    get:
      operationId: getPatient
      tags:
        - Patients
      summary: Read a patient
      description: Reads a single synthetic Patient resource by logical id.
      parameters:
        - $ref: '#/components/parameters/ResourceId'
      responses:
        '200':
          description: The requested Patient resource.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/FhirResource'
        '404':
          $ref: '#/components/responses/NotFound'
  /Observation:
    get:
      operationId: searchObservations
      tags:
        - Clinical Records
      summary: Search observations
      description: >-
        Searches Observation resources - vital signs, lab results, and other
        measurements - typically scoped to a patient with the patient search
        parameter and filtered by category or code.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
        - name: category
          in: query
          description: Observation category (for example vital-signs or laboratory).
          schema:
            type: string
        - name: code
          in: query
          description: LOINC or other code identifying the observation.
          schema:
            type: string
      responses:
        '200':
          description: A searchset Bundle of Observation resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /Condition:
    get:
      operationId: searchConditions
      tags:
        - Clinical Records
      summary: Search conditions
      description: Searches Condition resources (problems and diagnoses) for a patient.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
      responses:
        '200':
          description: A searchset Bundle of Condition resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /MedicationRequest:
    get:
      operationId: searchMedicationRequests
      tags:
        - Clinical Records
      summary: Search medication requests
      description: Searches MedicationRequest resources (prescriptions and medication orders) for a patient.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
      responses:
        '200':
          description: A searchset Bundle of MedicationRequest resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /Encounter:
    get:
      operationId: searchEncounters
      tags:
        - Clinical Records
      summary: Search encounters
      description: Searches Encounter resources (visits and admissions) for a patient.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
      responses:
        '200':
          description: A searchset Bundle of Encounter resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /AllergyIntolerance:
    get:
      operationId: searchAllergyIntolerances
      tags:
        - Clinical Records
      summary: Search allergies and intolerances
      description: Searches AllergyIntolerance resources for a patient.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
      responses:
        '200':
          description: A searchset Bundle of AllergyIntolerance resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /Immunization:
    get:
      operationId: searchImmunizations
      tags:
        - Clinical Records
      summary: Search immunizations
      description: Searches Immunization resources (vaccination history) for a patient.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
      responses:
        '200':
          description: A searchset Bundle of Immunization resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /DocumentReference:
    get:
      operationId: searchDocumentReferences
      tags:
        - Clinical Records
      summary: Search document references
      description: Searches DocumentReference resources (clinical notes and documents) for a patient.
      parameters:
        - $ref: '#/components/parameters/Patient'
        - $ref: '#/components/parameters/Count'
      responses:
        '200':
          description: A searchset Bundle of DocumentReference resources.
          content:
            application/fhir+json:
              schema:
                $ref: '#/components/schemas/Bundle'
  /auth/authorize:
    servers:
      - url: https://launch.smarthealthit.org/v/r4
        description: SMART App Launcher R4 base (auth endpoints are siblings of /fhir)
    get:
      operationId: smartAuthorize
      tags:
        - SMART App Launch
      summary: SMART App Launch authorization endpoint (launcher only)
      description: >-
        OAuth 2.0 authorization endpoint on the SMART App Launcher, located
        at https://launch.smarthealthit.org/v/r4/auth/authorize (a sibling
        of the /fhir base, so this path carries its own server). Initiates the
        SMART App Launch authorization code flow with PKCE, accepting
        standard OAuth parameters plus SMART launch context (launch,
        aud/aud-validated FHIR base, and clinical scopes such as
        patient/*.read, launch/patient, openid, and fhirUser). No client
        registration is required on the sandbox.
      security: []
      parameters:
        - name: response_type
          in: query
          required: true
          schema:
            type: string
            enum:
              - code
        - name: client_id
          in: query
          required: true
          schema:
            type: string
        - name: redirect_uri
          in: query
          required: true
          schema:
            type: string
        - name: scope
          in: query
          required: true
          description: Space-separated SMART scopes, for example "launch/patient patient/*.read openid fhirUser".
          schema:
            type: string
        - name: state
          in: query
          required: true
          schema:
            type: string
        - name: aud
          in: query
          required: true
          description: The FHIR base URL the token will be used against.
          schema:
            type: string
      responses:
        '302':
          description: Redirects back to the app's redirect_uri with an authorization code.
  /auth/token:
    servers:
      - url: https://launch.smarthealthit.org/v/r4
        description: SMART App Launcher R4 base (auth endpoints are siblings of /fhir)
    post:
      operationId: smartToken
      tags:
        - SMART App Launch
      summary: SMART App Launch token endpoint (launcher only)
      description: >-
        OAuth 2.0 token endpoint on the SMART App Launcher, located at
        https://launch.smarthealthit.org/v/r4/auth/token. Exchanges an
        authorization code (with PKCE verifier) for an access token carrying
        SMART launch context (patient, encounter, fhirUser), or accepts a
        SMART Backend Services client_credentials grant with a signed JWT
        client assertion.
      security: []
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              properties:
                grant_type:
                  type: string
                  enum:
                    - authorization_code
                    - client_credentials
                    - refresh_token
                code:
                  type: string
                redirect_uri:
                  type: string
                code_verifier:
                  type: string
                client_assertion_type:
                  type: string
                client_assertion:
                  type: string
                scope:
                  type: string
      responses:
        '200':
          description: An access token response with SMART context parameters.
          content:
            application/json:
              schema:
                type: object
                properties:
                  access_token:
                    type: string
                  token_type:
                    type: string
                  expires_in:
                    type: integer
                  scope:
                    type: string
                  patient:
                    type: string
                    description: Patient id in context, when launch/patient was granted.
                  encounter:
                    type: string
                  id_token:
                    type: string
  /$export:
    servers:
      - url: https://bulk-data.smarthealthit.org/fhir
        description: Reference Bulk Data server
    get:
      operationId: bulkSystemExport
      tags:
        - Bulk Data
      summary: Start a system-level bulk export (Bulk Data server only)
      description: >-
        Kicks off an asynchronous export of all resources on the reference
        Bulk Data server (https://bulk-data.smarthealthit.org/fhir).
        Requires the Prefer respond-async header and a SMART Backend
        Services access token. Responds 202 with a Content-Location status
        URL to poll (honor Retry-After); when complete, the status endpoint
        returns a manifest of NDJSON file URLs to download.
      parameters:
        - $ref: '#/components/parameters/OutputFormat'
        - $ref: '#/components/parameters/Type'
        - $ref: '#/components/parameters/Since'
      responses:
        '202':
          description: Export accepted; poll the Content-Location URL for status.
          headers:
            Content-Location:
              description: Absolute URL of the export status endpoint.
              schema:
                type: string
        '401':
          $ref: '#/components/responses/Unauthorized'
  /Patient/$export:
    servers:
      - url: https://bulk-data.smarthealthit.org/fhir
        description: Reference Bulk Data server
    get:
      operationId: bulkPatientExport
      tags:
        - Bulk Data
      summary: Start a patient-level bulk export (Bulk Data server only)
      description: >-
        Kicks off an asynchronous export of all data for all patients on the
        reference Bulk Data server, following the same async-request pattern
        as the system-level export.
      parameters:
        - $ref: '#/components/parameters/OutputFormat'
        - $ref: '#/components/parameters/Type'
        - $ref: '#/components/parameters/Since'
      responses:
        '202':
          description: Export accepted; poll the Content-Location URL for status.
          headers:
            Content-Location:
              schema:
                type: string
        '401':
          $ref: '#/components/responses/Unauthorized'
  /Group/{id}/$export:
    servers:
      - url: https://bulk-data.smarthealthit.org/fhir
        description: Reference Bulk Data server
    get:
      operationId: bulkGroupExport
      tags:
        - Bulk Data
      summary: Start a group-level bulk export (Bulk Data server only)
      description: >-
        Kicks off an asynchronous export of all data for the patients in a
        Group on the reference Bulk Data server.
      parameters:
        - $ref: '#/components/parameters/ResourceId'
        - $ref: '#/components/parameters/OutputFormat'
        - $ref: '#/components/parameters/Type'
        - $ref: '#/components/parameters/Since'
      responses:
        '202':
          description: Export accepted; poll the Content-Location URL for status.
          headers:
            Content-Location:
              schema:
                type: string
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  parameters:
    ResourceId:
      name: id
      in: path
      required: true
      description: The logical id of the resource.
      schema:
        type: string
    Patient:
      name: patient
      in: query
      description: Scope the search to a patient, for example "Patient/123" or "123".
      schema:
        type: string
    Count:
      name: _count
      in: query
      description: Maximum number of entries per page of the returned Bundle.
      schema:
        type: integer
    OutputFormat:
      name: _outputFormat
      in: query
      description: Requested bulk output format; defaults to application/fhir+ndjson.
      schema:
        type: string
    Type:
      name: _type
      in: query
      description: Comma-separated FHIR resource types to include in the export.
      schema:
        type: string
    Since:
      name: _since
      in: query
      description: Only include resources modified after this instant.
      schema:
        type: string
        format: date-time
  responses:
    NotFound:
      description: No resource exists with the given id.
      content:
        application/fhir+json:
          schema:
            $ref: '#/components/schemas/OperationOutcome'
    Unauthorized:
      description: Missing or invalid access token (protected servers only).
      content:
        application/fhir+json:
          schema:
            $ref: '#/components/schemas/OperationOutcome'
  schemas:
    FhirResource:
      type: object
      description: Any FHIR R4 resource, identified by its resourceType element.
      properties:
        resourceType:
          type: string
        id:
          type: string
      additionalProperties: true
    Bundle:
      type: object
      description: A FHIR R4 searchset Bundle.
      properties:
        resourceType:
          type: string
          enum:
            - Bundle
        type:
          type: string
        total:
          type: integer
        link:
          type: array
          items:
            type: object
            properties:
              relation:
                type: string
              url:
                type: string
        entry:
          type: array
          items:
            type: object
            properties:
              fullUrl:
                type: string
              resource:
                $ref: '#/components/schemas/FhirResource'
    OperationOutcome:
      type: object
      description: A FHIR OperationOutcome describing an error.
      properties:
        resourceType:
          type: string
          enum:
            - OperationOutcome
        issue:
          type: array
          items:
            type: object
            properties:
              severity:
                type: string
              code:
                type: string
              diagnostics:
                type: string
  securitySchemes:
    smartOnFhir:
      type: oauth2
      description: >-
        HL7 SMART App Launch OAuth 2.0 profile, used by the launcher's
        protected FHIR proxy. The open r4.smarthealthit.org sandbox requires
        no authentication; the Bulk Data server uses SMART Backend Services
        (client_credentials with a signed JWT assertion).
      flows:
        authorizationCode:
          authorizationUrl: https://launch.smarthealthit.org/v/r4/auth/authorize
          tokenUrl: https://launch.smarthealthit.org/v/r4/auth/token
          scopes:
            openid: OpenID Connect identity.
            fhirUser: Identity of the launching user as a FHIR resource.
            launch/patient: Request a patient in context at launch.
            patient/*.read: Read all resources for the patient in context.
            user/*.read: Read all resources the user can access.
            system/*.read: Backend services system-level read access.
        clientCredentials:
          tokenUrl: https://launch.smarthealthit.org/v/r4/auth/token
          scopes:
            system/*.read: Backend services system-level read access.
security:
  - smartOnFhir: []
  - {}