openapi: 3.0.3
info:
  title: CMS AB2D Articles Auth API
  description: 'AB2D delivers Medicare Parts A, B, and D claims data to Part D Prescription Drug Plan

    sponsors via the HL7 FHIR Bulk Data Access specification. Asynchronous $export returns

    ExplanationOfBenefit NDJSON for all enrolled Medicare beneficiaries since 2020.

    '
  version: '2.0'
  contact:
    name: AB2D Help
    url: https://ab2d.cms.gov/
    email: ab2d@cms.hhs.gov
  license:
    name: Public Domain (U.S. Government Work)
    url: https://www.usa.gov/government-works
servers:
- url: https://api.ab2d.cms.gov/api/v2
  description: Production
- url: https://sandbox.ab2d.cms.gov/api/v2
  description: Sandbox
security:
- BearerAuth: []
tags:
- name: Auth
paths:
  /userinfo:
    get:
      summary: Get Beneficiary User Info
      operationId: getUserinfo
      description: OpenID Connect userinfo endpoint returning beneficiary identity claims.
      tags:
      - Auth
      responses:
        '200':
          description: User info claims
          content:
            application/json:
              schema:
                type: object
                properties:
                  sub:
                    type: string
                  patient:
                    type: string
                  name:
                    type: string
                  given_name:
                    type: string
                  family_name:
                    type: string
  /Token:
    post:
      summary: Create Client Token
      operationId: createToken
      description: Create a long-lived client token for the registered organization.
      tags:
      - Auth
      responses:
        '200':
          description: Token created
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: AB2D uses SMART Backend Services with okta-issued JWT bearer tokens.