Core API — Credit Accounts

naftiko: 1.0.0-alpha2
info:
  label: Core API — Credit Accounts
  description: 'Core API — Credit Accounts. 3 operations. Lead operation: List accounts. Self-contained Naftiko capability
    covering one Marqeta business surface.'
  tags:
  - Marqeta
  - Credit Accounts
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    MARQETA_API_KEY: MARQETA_API_KEY
capability:
  consumes:
  - type: http
    namespace: core-credit-accounts
    baseUri: ''
    description: Core API — Credit Accounts business capability. Self-contained, no shared references.
    resources:
    - name: accounts
      path: /accounts
      operations:
      - name: listaccounts
        method: GET
        description: List accounts
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: card_token
          in: query
          type: string
          description: Unique identifier of the credit card associated with the account.
        - name: count
          in: query
          type: integer
          description: Number of credit account resources to retrieve.
        - name: start_index
          in: query
          type: integer
          description: Sort order index of the first resource in the returned array.
        - name: sort_by
          in: query
          type: string
          description: Field on which to sort.
        - name: light_response
          in: query
          type: boolean
          description: If `true`, returns a lightweight response without any balances and usages.
        - name: secured_account_token
          in: query
          type: string
          description: Unique identifier of an existing secured account.
        - name: user_token
          in: query
          type: string
          description: Unique identifier of the user by which to filter accounts.
    - name: accounts-account_token
      path: /accounts/{account_token}
      operations:
      - name: retrieveaccount
        method: GET
        description: Retrieve account
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: effective_fee_schedule_only
          in: query
          type: boolean
          description: Display the effective fee schedule only.
        - name: account_token
          in: path
          type: string
          description: Unique identifier of the credit account to retrieve.
          required: true
        - name: light_response
          in: query
          type: boolean
          description: If true, returns a lightweight response without any balances and usages.
      - name: updateaccount
        method: PUT
        description: Update account
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: account_token
          in: path
          type: string
          description: Unique identifier of the credit account to update.
          required: true
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: true
    authentication:
      type: basic
      username: '{{env.MARQETA_USER}}'
      password: '{{env.MARQETA_PASS}}'
  exposes:
  - type: rest
    namespace: core-credit-accounts-rest
    port: 8080
    description: REST adapter for Core API — Credit Accounts. One Spectral-compliant resource per consumed operation, prefixed
      with /v1.
    resources:
    - path: /v1/accounts
      name: accounts
      description: REST surface for accounts.
      operations:
      - method: GET
        name: listaccounts
        description: List accounts
        call: core-credit-accounts.listaccounts
        with:
          card_token: rest.card_token
          count: rest.count
          start_index: rest.start_index
          sort_by: rest.sort_by
          light_response: rest.light_response
          secured_account_token: rest.secured_account_token
          user_token: rest.user_token
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/accounts/{account-token}
      name: accounts-account-token
      description: REST surface for accounts-account_token.
      operations:
      - method: GET
        name: retrieveaccount
        description: Retrieve account
        call: core-credit-accounts.retrieveaccount
        with:
          effective_fee_schedule_only: rest.effective_fee_schedule_only
          account_token: rest.account_token
          light_response: rest.light_response
        outputParameters:
        - type: object
          mapping: $.
      - method: PUT
        name: updateaccount
        description: Update account
        call: core-credit-accounts.updateaccount
        with:
          account_token: rest.account_token
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: core-credit-accounts-mcp
    port: 9090
    transport: http
    description: MCP adapter for Core API — Credit Accounts. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: list-accounts
      description: List accounts
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: core-credit-accounts.listaccounts
      with:
        card_token: tools.card_token
        count: tools.count
        start_index: tools.start_index
        sort_by: tools.sort_by
        light_response: tools.light_response
        secured_account_token: tools.secured_account_token
        user_token: tools.user_token
      outputParameters:
      - type: object
        mapping: $.
    - name: retrieve-account
      description: Retrieve account
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: core-credit-accounts.retrieveaccount
      with:
        effective_fee_schedule_only: tools.effective_fee_schedule_only
        account_token: tools.account_token
        light_response: tools.light_response
      outputParameters:
      - type: object
        mapping: $.
    - name: update-account
      description: Update account
      hints:
        readOnly: false
        destructive: false
        idempotent: true
      call: core-credit-accounts.updateaccount
      with:
        account_token: tools.account_token
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.