CMS Marketplace API

openapi: 3.0.3
info:
  title: CMS Marketplace API
  description: |
    The Marketplace API exposes Qualified Health Plan (QHP) and Stand-alone Dental Plan
    (SADP) data from healthcare.gov including plan finder, plan compare, plan rates, plan
    benefits, and crosswalks. Powers consumer plan-shopping experiences across
    HealthCare.gov and partner brokers.
  version: '1.0'
  contact:
    name: CMS Marketplace API
    url: https://developer.cms.gov/marketplace-api/
  license:
    name: Public Domain (U.S. Government Work)
    url: https://www.usa.gov/government-works
servers:
- url: https://marketplace.api.healthcare.gov/api/v1
  description: Production
security:
- ApiKey: []
paths:
  /plans/search:
    post:
      summary: Search Marketplace Plans
      operationId: searchPlans
      description: Search QHPs available to a household based on location, income, and household composition.
      tags: [Plans]
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                household: { type: object }
                place: { type: object }
                market: { type: string, enum: [Individual, SHOP] }
                year: { type: integer }
      responses:
        '200':
          description: List of matching plans
          content:
            application/json:
              schema:
                type: object
                properties:
                  total: { type: integer }
                  plans: { type: array, items: { $ref: '#/components/schemas/Plan' } }
  /plans/{planId}:
    get:
      summary: Get Plan Details
      operationId: getPlan
      tags: [Plans]
      parameters:
      - { name: planId, in: path, required: true, schema: { type: string } }
      - { name: year, in: query, schema: { type: integer } }
      responses:
        '200':
          description: Plan details
          content: { application/json: { schema: { $ref: '#/components/schemas/Plan' } } }
  /counties/by/zip/{zip}:
    get:
      summary: Get Counties by ZIP
      operationId: getCountiesByZip
      tags: [Geography]
      parameters:
      - { name: zip, in: path, required: true, schema: { type: string } }
      responses:
        '200': { description: List of counties }
  /issuers:
    get:
      summary: List Issuers
      operationId: listIssuers
      tags: [Issuers]
      responses:
        '200': { description: List of QHP issuers }
  /providers/search:
    post:
      summary: Search Providers
      operationId: searchProviders
      tags: [Providers]
      requestBody:
        required: true
        content: { application/json: { schema: { type: object } } }
      responses:
        '200': { description: Matching providers and networks }
  /drugs/autocomplete:
    get:
      summary: Drug Autocomplete
      operationId: drugAutocomplete
      tags: [Drugs]
      parameters:
      - { name: q, in: query, required: true, schema: { type: string } }
      responses:
        '200': { description: Drug suggestions }
  /forms/eligibility:
    post:
      summary: Check Subsidy Eligibility
      operationId: checkEligibility
      tags: [Eligibility]
      requestBody:
        required: true
        content: { application/json: { schema: { type: object } } }
      responses:
        '200': { description: Eligibility result including APTC and CSR }
components:
  securitySchemes:
    ApiKey:
      type: apiKey
      in: query
      name: apikey
  schemas:
    Plan:
      type: object
      properties:
        id: { type: string }
        name: { type: string }
        issuer: { type: object }
        metal_level: { type: string, enum: [Bronze, Silver, Gold, Platinum, Catastrophic] }
        type: { type: string, enum: [HMO, PPO, EPO, POS, Indemnity] }
        premium: { type: number }
        deductibles: { type: array, items: { type: object } }
        moops: { type: array, items: { type: object } }
        benefits: { type: array, items: { type: object } }