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

# Seller IU plan choices at signup



## OpenAPI

````yaml /openapi/v3.yaml get /auth/storefront-rate-card-preview
openapi: 3.1.0
info:
  title: Semicola Exchange platform API
  version: 3.0.0-preview
  description: >-
    Platform endpoints of Semicola: sign-in, signup and OAuth for MCP clients,
    accounts, members and keys, billing, notifications, the Semi assistant (chat
    stream, confirmations, conversations), the MCP App widget host and realtime
    feeds. Typed agent tools live on the MCP server at /mcp/v3.
servers:
  - url: https://api.semicola.com
security:
  - bearerAuth: []
  - sessionCookie: []
tags:
  - name: Auth
  - name: Signup
  - name: OAuth
  - name: Accounts
  - name: Members
  - name: API Keys
  - name: Connected Apps
  - name: Onboarding
  - name: Billing
  - name: AI Usage
  - name: Notifications
  - name: Assistant
  - name: MCP Apps
  - name: Realtime
  - name: Demo
paths:
  /auth/storefront-rate-card-preview:
    get:
      tags:
        - Signup
      summary: Seller IU plan choices at signup
      operationId: getAuthStorefrontRateCardPreview
      parameters:
        - name: code
          in: query
          required: false
          schema:
            type: string
            minLength: 3
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    anyOf:
                      - type: object
                        properties:
                          rateCardVersion:
                            type: string
                          plans:
                            type: array
                            items:
                              type: object
                              properties:
                                planKey:
                                  type: string
                                label:
                                  type: string
                                paid:
                                  type: boolean
                                monthlyPriceMinor:
                                  type: string
                                currency:
                                  type: string
                              required:
                                - planKey
                                - label
                                - paid
                                - monthlyPriceMinor
                                - currency
                              additionalProperties: false
                          setupIus:
                            type: integer
                            minimum: 0
                            maximum: 9007199254740991
                          codeApplied:
                            type: boolean
                          codeError:
                            type:
                              - string
                              - 'null'
                        required:
                          - rateCardVersion
                          - plans
                          - setupIus
                          - codeApplied
                          - codeError
                        additionalProperties: false
                      - type: 'null'
                  error:
                    anyOf:
                      - type: object
                        properties:
                          code:
                            type: string
                          message:
                            type: string
                          field:
                            type: string
                          details: {}
                        required:
                          - code
                          - message
                        additionalProperties: false
                      - type: 'null'
                required:
                  - data
                  - error
                additionalProperties: false
        default:
          description: >-
            Error envelope `{data: null, error: {code, message, field?,
            details?}}`.
      security: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: API key or OAuth access token.
    sessionCookie:
      type: apiKey
      in: cookie
      name: sc_session

````