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

# List schedule intervals



## OpenAPI

````yaml /openapi.json get /v0/billingSchedules/{id}/intervals
openapi: 3.1.0
info:
  title: Paygentic API
  version: 0.1.0
  description: >
    The Paygentic API provides a comprehensive platform for building and scaling
    monetization infrastructure.


    ## Authentication

    All API requests require authentication using an API key passed in the
    `Authorization` header:

    ```

    Authorization: Bearer YOUR_API_KEY

    ```


    ## Base URL

    All API requests should be made to:

    ```

    https://api.paygentic.io/v0

    ```
  contact:
    name: Paygentic Support
    email: support@paygentic.io
  license:
    name: Proprietary
servers:
  - url: https://api.paygentic.io
    description: Production API
  - url: https://api.sandbox.paygentic.io
    description: Sandbox API
security:
  - BearerAuth: []
tags:
  - name: Customers
    description: >-
      A `Customer` is an entity connected to a `Merchant` via a `Subscription`.
      This represents the merchant-facing perspective of `Consumers` who
      purchase their `Products`.
  - name: Billable Metrics
    description: >-
      A `Billable Metric` defines a measurable quantity tied to a `Product`'s
      consumption. Each metric stores details including its label, an
      explanatory description, and measurement units.
  - name: Grants
    description: >-
      Grants credit a customer's metered entitlement balance. Merchants can
      create grants directly or void existing ones.


      Use `GET /v1/entitlements?customerId={id}` or `GET
      /v1/entitlements?subscriptionId={id}` to find the metered entitlement `id`
      needed for these endpoints.
  - name: Features
    description: >-
      A `Feature` represents a specific capability or functionality provided by
      a `Product`. Features can be metered (usage-based), static (fixed
      allocation), or boolean (enabled/disabled).
  - name: Fees
    description: >-
      A `Fee` defines a recurring or one-time charge tied to a `Product`. Fees
      are linked to prices, and cadence is defined on the Price.
  - name: Plans
    description: >-
      A `Plan` links a collection of `Prices` to a `Product`. It functions as a
      pricing structure document for a particular feature set or service
      offering.
  - name: Prices
    description: >-
      A `Price` determines the monetary value for a single unit of a `Billable
      Metric`. Prices are exclusively grouped within a `Plan`.
  - name: Products
    description: >-
      A `Product` is an offering sold by a `Merchant`. It includes product
      metadata like title, summary, and pricing details. `Plans`, `Prices`, and
      `Subscriptions` are all associated with products.
  - name: Sources
    description: >-
      A `Source` is an external data provider capable of automatically creating
      usage events. Configuration occurs at the plan level, enabling data
      retrieval from third-party platforms such as Stripe to produce billable
      events.
  - name: Subscriptions
    description: >-
      A `Subscription` is a customer's commitment to purchase a `Product`
      following the terms of a `Plan` and its linked `Prices`.
  - name: Users
    description: >-
      A `User` is an entity granted access to an Organization's resources. All
      operations are performed by users.
  - name: Invoices V2
    description: >-
      Invoice V2 operations supporting billing cycles organized by time periods.
      Warning: v0 invoice endpoints are no longer supported.
  - name: Revenue
    description: Revenue data from invoices and payments
  - name: Profitability
    description: Per-customer profitability summaries
  - name: Test Clocks
    description: >-
      Test clocks provide programmable time control to simulate subscription and
      billing scenarios during testing.
  - name: Events
    description: Ingest raw metering events that are processed by the meters service.
  - name: Payments
    description: >-
      Create and manage one-off payments. A payment represents a single charge
      that a merchant wants to collect from a customer.
  - name: Payment Sessions
    description: >-
      Handle payment session lifecycle and processing across various entity
      types including invoices and subscriptions
  - name: Costs
    description: >-
      A Cost represents the operational or infrastructure expense of serving
      customers for a given product. Costs are metered (driven by event-based
      usage) and are tracked in parallel with billable metrics to give merchants
      visibility into both revenue and cost per customer.
  - name: ExternalReferences
    description: >-
      An `ExternalReference` links a Paygentic entity (e.g. an `Item`) to a
      record in an external system such as Salesforce or NetSuite. Multiple
      external records may map to the same Paygentic entity, but each external
      id is the *primary* reference of at most one entity per merchant.
  - name: Items
    description: >-
      An `Item` is the canonical "thing you sell" that external-system mappings
      point at. It is fully decoupled from the billing `Product` and holds no
      pricing/plan/metering, and it is CRM/ERP agnostic — which providers map to
      it lives entirely in its `ExternalReference` rows.
  - name: MerchantIntegrations
    description: >-
      A `MerchantIntegration` records a merchant's connection to an external
      provider. One connection per `(merchant, provider)` — re-connecting
      upserts in place.
  - name: Approvals
    description: Submit, decide, cancel, and read maker-checker approvals.
  - name: Orders
    description: Manage Orders, their line items, and billing schedules.
  - name: Billing Schedules
    description: >-
      Owner-polymorphic billing schedules with intervals and staged invoice
      projections. A BillingSchedule belongs to exactly one Order or one
      Subscription (XOR). Cadence lives on ScheduleIntervals
      (cadence-on-the-line).
paths:
  /v0/billingSchedules/{id}/intervals:
    get:
      tags:
        - Billing Schedules
      summary: List schedule intervals
      operationId: listScheduleIntervals
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        '200':
          description: List of schedule intervals
          content:
            application/json:
              schema:
                type: object
                required:
                  - object
                  - data
                  - pagination
                properties:
                  object:
                    type: string
                    enum:
                      - list
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/ScheduleInterval'
                  pagination:
                    $ref: '#/components/schemas/OffsetPagination'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    ScheduleInterval:
      type: object
      required:
        - id
        - object
        - scheduleId
        - baseQuantity
        - quantityTransitions
        - billingCadence
        - billingMode
        - startDate
        - endDate
        - metadata
        - createdAt
        - updatedAt
      properties:
        id:
          type: string
        object:
          type: string
          enum:
            - schedule_interval
        scheduleId:
          type: string
        orderLineItemId:
          type: string
          nullable: true
        itemId:
          type: string
          nullable: true
        priceId:
          type: string
          nullable: true
        description:
          type: string
          nullable: true
        unitPrice:
          type: string
          nullable: true
          description: Signed per-period net unit price as decimal string
        baseQuantity:
          type: string
          description: Quantity at interval start
        quantityTransitions:
          type: array
          items:
            type: object
            required:
              - effectiveDate
              - quantity
            properties:
              effectiveDate:
                type: string
                format: date-time
              quantity:
                type: string
        billingCadence:
          type: string
          description: ISO-8601 duration or 'one_off'
        billingMode:
          type: string
          enum:
            - advance
            - arrears
        billDate:
          type: string
          format: date-time
          nullable: true
        startDate:
          type: string
          format: date-time
        endDate:
          type: string
          format: date-time
        usageFilter:
          type: object
          nullable: true
          additionalProperties: true
        metadata:
          type: object
          additionalProperties: true
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
    OffsetPagination:
      type: object
      description: Offset-based pagination response.
      properties:
        limit:
          type: integer
          description: Requested page size.
        offset:
          type: integer
          description: Number of items skipped.
        total:
          type: integer
          description: Total number of items available.
      required:
        - limit
        - offset
        - total
    Error:
      type: object
      required:
        - message
      properties:
        error:
          type: string
          description: >-
            Coarse HTTP error category (e.g. 'bad_request', 'forbidden'). Maps
            to the HTTP status code.
        message:
          type: string
          description: >-
            Human-readable error message. Clients must not parse this field
            programmatically.
        code:
          type: string
          examples:
            - TAX_NOT_ENABLED
            - PAYMENT_SESSION_EXPIRED
          description: >-
            Optional semantic business error code for machine-readable
            discrimination (e.g. 'TAX_NOT_ENABLED'). UPPER_SNAKE_CASE. Clients
            should check this field, not message.
        details:
          type: object
          description: Additional error details
          additionalProperties: true
      example:
        message: The requested resource was not found
        error: not_found
  responses:
    Unauthorized:
      description: Unauthorized - Authentication failed or user does not have permissions
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Forbidden:
      description: Forbidden - Request is understood but refused
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Not Found - The requested resource could not be found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InternalServerError:
      description: Internal Server Error - Something went wrong on the server side
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: API key authentication

````