> ## Documentation Index
> Fetch the complete documentation index at: https://docs.expys.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Resolve a member's tier and budget



## OpenAPI

````yaml /api-reference/openapi.json get /v1/eligibility
openapi: 3.0.3
info:
  description: Public REST API for embedding Expys experiences into a client app.
  title: Expys API
  version: 1.2.0
servers:
  - url: https://api.expys.com
    description: >-
      Expys API. Sandbox and live share this host; the environment is selected
      by which key you exchange for a member token, not by the URL.
security: []
paths:
  /v1/eligibility:
    get:
      tags:
        - Eligibility
      summary: Resolve a member's tier and budget
      operationId: getEligibility
      parameters:
        - in: query
          name: externalUserID
          required: false
          schema:
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MemberEligibility'
          description: Response for status 200
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '401':
          description: Authentication is missing or invalid.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '403':
          description: Authenticated, but not permitted to access this resource.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '404':
          description: The resource does not exist or is not visible to this caller.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '429':
          description: Rate limit exceeded; honor the Retry-After header.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '500':
          description: An unexpected server error occurred.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
      security:
        - ApiKeyBearer: []
        - ApiKeyHeader: []
      x-codeSamples:
        - lang: curl
          label: curl
          source: |-
            curl https://api.expys.com/v1/eligibility \
              -H "Authorization: Bearer YOUR_MEMBER_TOKEN"
components:
  schemas:
    MemberEligibility:
      properties:
        tier:
          type: string
        wallet:
          $ref: '#/components/schemas/Wallet'
      required:
        - tier
        - wallet
      type: object
    Wallet:
      properties:
        amountReceived:
          type: number
        amountSpent:
          type: number
        balance:
          type: number
        currency:
          $ref: '#/components/schemas/Currency'
      required:
        - amountReceived
        - amountSpent
        - balance
        - currency
      type: object
    Currency:
      properties:
        name:
          type: string
        symbol:
          type: string
      required:
        - name
        - symbol
      type: object
  securitySchemes:
    ApiKeyBearer:
      description: Org-API-Key as a Bearer token.
      scheme: bearer
      type: http
    ApiKeyHeader:
      description: Org-API-Key as a header.
      in: header
      name: x-api-key
      type: apiKey

````