Shift4 Subscription Billing

naftiko: 1.0.0-alpha2
info:
  label: Shift4 Subscription Billing
  description: Recurring billing operations on Shift4. Combines plans, subscriptions, and customer/card management to support
    SaaS and membership-style billing.
  tags:
  - Shift4
  - Subscriptions
  - Plans
  - Billing
  - Customers
  created: '2026-05-05'
  modified: '2026-05-06'
binds:
- namespace: env
  keys:
    SHIFT4_API_KEY: SHIFT4_API_KEY
capability:
  consumes:
  - type: http
    namespace: shift4-customers
    baseUri: https://api.shift4.com
    authentication:
      type: basic
      username: '{{SHIFT4_API_KEY}}'
      password: ''
    resources:
    - name: customers
      path: /customers
      operations:
      - name: list-customers
        method: GET
        description: List customers.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: create-customer
        method: POST
        description: Create a customer.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        body:
          type: json
          data:
            email: '{{tools.email}}'
            description: '{{tools.description}}'
    - name: customer
      path: /customers/{customer}
      operations:
      - name: get-customer
        method: GET
        description: Retrieve a customer by ID.
        inputParameters:
        - name: customer
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: update-customer
        method: POST
        description: Update a customer.
        inputParameters:
        - name: customer
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: delete-customer
        method: DELETE
        description: Delete a customer.
        inputParameters:
        - name: customer
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
  - type: http
    namespace: shift4-subscriptions
    baseUri: https://api.shift4.com
    authentication:
      type: basic
      username: '{{SHIFT4_API_KEY}}'
      password: ''
    resources:
    - name: plans
      path: /plans
      operations:
      - name: list-plans
        method: GET
        description: List plans.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: create-plan
        method: POST
        description: Create a plan.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: plan
      path: /plans/{plan}
      operations:
      - name: get-plan
        method: GET
        description: Retrieve a plan by ID.
        inputParameters:
        - name: plan
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: update-plan
        method: POST
        description: Update a plan.
        inputParameters:
        - name: plan
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: subscriptions
      path: /subscriptions
      operations:
      - name: create-subscription
        method: POST
        description: Create a subscription.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: subscription
      path: /subscriptions/{subscription}
      operations:
      - name: get-subscription
        method: GET
        description: Retrieve a subscription by ID.
        inputParameters:
        - name: subscription
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: update-subscription
        method: POST
        description: Update or cancel a subscription.
        inputParameters:
        - name: subscription
          in: path
          type: string
          required: true
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
  exposes:
  - type: mcp
    port: 9081
    namespace: shift4-subscription-billing-mcp
    transport: http
    description: MCP surface for managing Shift4 subscription billing.
    tools:
    - name: create-customer
      description: Create a Shift4 customer.
      hints:
        readOnly: false
        destructive: false
      call: shift4-customers.create-customer
      outputParameters:
      - type: object
        mapping: $.
    - name: create-plan
      description: Create a Shift4 plan.
      hints:
        readOnly: false
        destructive: false
      call: shift4-subscriptions.create-plan
      outputParameters:
      - type: object
        mapping: $.
    - name: create-subscription
      description: Create a Shift4 subscription for a customer on a plan.
      hints:
        readOnly: false
        destructive: false
      call: shift4-subscriptions.create-subscription
      outputParameters:
      - type: object
        mapping: $.
    - name: update-subscription
      description: Update or cancel a Shift4 subscription.
      hints:
        readOnly: false
        destructive: false
      call: shift4-subscriptions.update-subscription
      with:
        subscription: tools.subscription
      outputParameters:
      - type: object
        mapping: $.
    - name: list-plans
      description: List Shift4 plans.
      hints:
        readOnly: true
      call: shift4-subscriptions.list-plans
      outputParameters:
      - type: object
        mapping: $.