> ## 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.

# Update



## OpenAPI

````yaml /openapi.json patch /v0/subscriptions/{id}
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/subscriptions/{id}:
    patch:
      tags:
        - Subscriptions
      summary: Update
      operationId: updateSubscription
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                endingAt:
                  type: string
                  format: date-time
                status:
                  type: string
                  enum:
                    - active
                    - terminated
                terminatedAt:
                  type: string
                  format: date-time
                  description: >-
                    Effective termination timestamp. Capped at the current
                    effective time (future values are clamped). Must be strictly
                    after the subscription's start date — values at or before
                    startedAt are rejected with 400.
                terminatedBy:
                  type: string
                  description: >-
                    Identifier of entity that cancelled the subscription. Sample
                    values: 'cust_abc123' for customer-initiated cancellation,
                    'org_xyz789' for merchant-initiated cancellation
                terminationReason:
                  type: string
                  description: >-
                    Explanation for subscription cancellation. Sample values:
                    'Customer requested cancellation', 'Payment failure',
                    'Service migration', 'Contract expiration'
                autoCharge:
                  type: boolean
                  description: >-
                    Enable or disable automatic charging of invoices using
                    stored payment methods.
                taxExempt:
                  type: boolean
                  description: When true, forces tax rate to 0%.
                minimumAccountBalance:
                  type: string
                  description: >-
                    Minimum wallet balance requirement in decimal dollars (e.g.,
                    '100.00'). Can be set to '0' to disable. Maximum allowed is
                    $5,000. Contact support for higher limits. Note: If the
                    calculated charge amount at renewal is below payment
                    processor minimums (typically $1.00), it will be
                    automatically adjusted upward to meet the minimum
                    requirement. Changes apply at next renewal.
                renewalReminderEnabled:
                  type: boolean
                  nullable: true
                  description: >-
                    Override plan setting for renewal reminder emails. Set to
                    true to enable, false to disable, or null to use plan
                    default.
                renewalReminderDays:
                  type: integer
                  nullable: true
                  description: >-
                    Override plan setting for number of days before renewal to
                    send the reminder. Set to null to use plan default.
                  minimum: 1
                  maximum: 30
                paymentTermDays:
                  type: integer
                  description: >-
                    Payment term in days ("Net X") applied to subsequently
                    generated invoices: invoice dueAt = invoice issue date +
                    paymentTermDays. A non-zero value is only valid alongside
                    bankTransferOnly=true. Set 0 for "due on issue".
                    Already-issued invoices keep their snapshotted dueAt.
                  minimum: 0
                  maximum: 365
      responses:
        '200':
          description: Subscription updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Subscription'
              example:
                id: sub_z1a2b3c4d5e6f7g8
                object: subscription
                autoCharge: true
                taxExempt: false
                createdAt: '2024-01-10T08:00:00Z'
                customerId: cus_q3r4s5t6u7v8w9x0
                endingAt: '2024-12-31T23:59:59Z'
                estimatedTaxRate: 8.5
                name: StartupXYZ - Image Generation Service
                payment: null
                planId: plan_t9u0v1w2x3y4z5a6
                prefundAmount: '50000000000'
                startedAt: '2024-01-10T08:00:00Z'
                status: active
                terminatedAt: null
                terminatedBy: null
                terminationReason: null
                updatedAt: '2024-03-15T10:30:00Z'
                walletId: acc_b7c8d9e0f1g2h3i4
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    Subscription:
      type: object
      required:
        - id
        - object
        - merchantId
        - name
        - customerId
        - planId
        - status
        - startedAt
        - createdAt
        - updatedAt
        - paymentTermDays
      properties:
        id:
          type: string
        object:
          type: string
          enum:
            - subscription
        merchantId:
          $ref: '#/components/schemas/OrganizationId'
          description: >-
            The merchant organization that owns this subscription, equal to the
            customer's merchant.
        autoCharge:
          type: boolean
          description: >-
            Whether automatic charging is enabled for this subscription. When
            true, invoices will be automatically paid using stored payment
            methods.
          default: false
        createdAt:
          type: string
          format: date-time
        customerId:
          type: string
        endingAt:
          type: string
          format: date-time
        estimatedTaxRate:
          type: number
          description: >-
            Projected tax percentage rate. Sample values: 8.875 indicates 8.875%
            tax rate, 10.0 indicates 10% tax rate, 0 indicates no tax applied
        taxExempt:
          type: boolean
          description: When true, tax rate is forced to 0%.
          default: false
        name:
          type: string
        payment:
          description: >-
            Payment session details when upfront payment is required, or
            confirmation of a zero-amount paid invoice
          oneOf:
            - type: object
              properties:
                amount:
                  type: string
                  description: >-
                    Total payment amount in decimal dollar format. Sample
                    values: '250.00' equals $250.00, '99.99' equals $99.99
                breakdown:
                  type: object
                  description: Breakdown of payment amount
                  properties:
                    upfrontCharges:
                      type: string
                      description: >-
                        One-time flat fee charges in decimal dollar format.
                        Sample values: '50.00' equals $50.00 setup fee, '100.00'
                        equals $100.00 activation fee
                    walletCharge:
                      type: string
                      description: Wallet charge amount in decimal dollar format.
                  required:
                    - upfrontCharges
                    - walletCharge
                checkoutUrl:
                  type: string
                  description: Checkout page URL for customer payment completion.
                invoiceId:
                  type: string
                  description: ID of the invoice linked to this payment.
                paymentSessionId:
                  type: string
                  description: Payment session identifier for upfront payment processing.
                status:
                  type: string
                  description: Payment status
                  enum:
                    - pending
              required:
                - paymentSessionId
                - checkoutUrl
                - amount
                - status
                - breakdown
            - type: object
              description: Zero-amount Invoice 0 that completed synchronously to PAID
              properties:
                invoiceId:
                  type: string
                  description: The Invoice 0 id
                amount:
                  type: string
                  description: Payment amount ('0' for zero-amount subscriptions)
                status:
                  type: string
                  description: Payment status
                  enum:
                    - paid
              required:
                - invoiceId
                - amount
                - status
            - type: object
              description: >-
                Invoice 0 awaiting merchant approval before payment can proceed.
                The invoice is in DRAFT status with totals calculated. Approval
                is a platform-managed action and will be available via a public
                endpoint in a future release.
              properties:
                invoiceId:
                  type: string
                  description: The Invoice 0 id awaiting approval
                amount:
                  type: string
                  description: Total payment amount in decimal dollar format
                status:
                  type: string
                  description: Payment status
                  enum:
                    - awaiting_approval
              required:
                - invoiceId
                - amount
                - status
        planId:
          type: string
        prefundAmount:
          type: string
          description: >-
            @deprecated Use minimumAccountBalance instead. Minimum required
            wallet balance in atomic units. Sample values: '200000000000' equals
            $200.00 minimum, '1000000000000' equals $1000.00 minimum
        minimumAccountBalance:
          type: string
          description: >-
            Minimum wallet balance requirement in nanodollars. Can be '0' to
            disable. The system calculates the difference between this minimum
            and the customer's current balance, charging only what's needed to
            reach the minimum. Note: If the calculated charge amount is below
            payment processor minimums (typically $1.00), the actual charged
            amount may be automatically adjusted upward to meet the minimum
            requirement. Sample values: '200000000000' equals $200.00 minimum,
            '1000000000000' equals $1000.00 minimum
        startedAt:
          type: string
          format: date-time
        status:
          type: string
          enum:
            - pending_payment
            - active
            - terminated
        terminatedAt:
          type: string
          format: date-time
        terminatedBy:
          type: string
          description: ID of who terminated the subscription (customer ID or merchant ID)
        terminationReason:
          type: string
          description: Reason for termination
        testClockId:
          type: string
          description: >-
            Test clock ID if this subscription is attached to a test clock. Only
            present in non-production environments.
        updatedAt:
          type: string
          format: date-time
        walletId:
          type: string
          description: Optional (virtual) wallet ID for the subscription
        renewalReminderEnabled:
          type: boolean
          nullable: true
          description: >-
            Whether renewal reminder emails are enabled for this subscription.
            Null means use plan default.
        renewalReminderDays:
          type: integer
          nullable: true
          description: >-
            Number of days before renewal to send the reminder. Null means use
            plan default.
        paymentTermDays:
          type: integer
          description: >-
            Payment term in days ("Net X") snapshotted onto every invoice the
            subscription generates (invoice dueAt = invoice issue date +
            paymentTermDays). Defaults to 0 ("due on issue"); a non-zero value
            is only set on bankTransferOnly subscriptions.
          minimum: 0
          maximum: 365
        autoApprove:
          type: boolean
          nullable: true
          description: >-
            Subscription-level auto-approval override. Null means plan default
            is used.
        metadata:
          $ref: '#/components/schemas/SubscriptionMetadata'
        customer:
          type: object
          description: >-
            Customer details with merchant and consumer information. Only
            included when include=customer is specified in the list query.
          properties:
            id:
              type: string
              description: Customer ID
            merchantId:
              type: string
              description: Merchant organization ID
            merchant:
              type: object
              properties:
                id:
                  type: string
                name:
                  type: string
                email:
                  type: string
              required:
                - id
                - name
                - email
            consumer:
              type: object
              properties:
                id:
                  type: string
                name:
                  type: string
                email:
                  type: string
              required:
                - id
                - name
                - email
    OrganizationId:
      type: string
      pattern: ^org_[a-zA-Z0-9]+$
      description: Unique identifier for an organization
    SubscriptionMetadata:
      type: object
      description: >-
        Free-form merchant metadata to attach to the subscription. Values must
        be strings, numbers, or booleans.
      additionalProperties:
        type:
          - string
          - number
          - boolean
    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
    ValidationError:
      type: object
      required:
        - message
        - errors
      properties:
        error:
          type: string
          enum:
            - validation_error
          default: validation_error
          description: Error type indicating validation failure
        message:
          type: string
          description: Human-readable error message
        errors:
          type: array
          items:
            type: object
            properties:
              field:
                type: string
                description: The field that failed validation
              message:
                type: string
                description: Validation error message for this field
              code:
                type: string
                description: Validation error code
            required:
              - field
              - message
          description: Array of field-specific validation errors
      example:
        message: Validation failed
        error: validation_error
        errors:
          - field: email
            message: Invalid email format
            code: invalid_format
  responses:
    BadRequest:
      description: >-
        Bad Request - The request could not be understood or was missing
        required parameters
      content:
        application/json:
          schema:
            oneOf:
              - $ref: '#/components/schemas/Error'
              - $ref: '#/components/schemas/ValidationError'
    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

````