> ## 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/plans/{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/plans/{id}:
    parameters:
      - name: id
        in: path
        required: true
        description: The unique identifier of the plan
        schema:
          $ref: '#/components/schemas/PlanId'
    patch:
      tags:
        - Plans
      summary: Update
      operationId: updatePlan
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                billingCadence:
                  type: string
                  enum:
                    - P1M
                    - P3M
                    - P1Y
                  description: >-
                    ISO 8601 duration for the billing period. Takes precedence
                    over billingInterval when both are provided.
                billingInterval:
                  type: string
                  enum:
                    - monthly
                    - quarterly
                    - yearly
                    - annual
                  description: >-
                    Recurring billing period frequency. Sample values: 'monthly'
                    for monthly billing, 'quarterly' for quarterly billing,
                    'yearly' for annual billing
                defaultTaxCode:
                  type: string
                  description: >-
                    Default tax code for plan line items. Common values:
                    'eservice' (electronically supplied services), 'saas'
                    (software as a service), 'consulting', 'ebook', 'standard',
                    'reduced', 'exempt'. Full list available via GET /tax/codes
                    endpoint.
                defaultTaxRate:
                  type: number
                  description: >-
                    Fallback tax rate (as percentage) if automatic tax
                    calculation is unavailable
                description:
                  type: string
                  description: >-
                    Plan details explaining included features and limits. Sample
                    values: 'Claude API access with 500K tokens monthly
                    allowance', 'Unlimited cloud storage plus real-time
                    analytics tools', 'Complete machine learning infrastructure
                    with GPU access', 'Flexible usage-based pricing with no
                    monthly commitment'
                invoiceDisplayName:
                  type: string
                  description: >-
                    Plan name shown on billing statements. Sample values: 'LLM
                    API Basic Plan', 'Data Warehouse Business', 'ML Platform
                    Enterprise', 'Pay-Per-Use Model'
                name:
                  type: string
                  description: >-
                    Plan identifier visible to customers. Sample values: 'Basic
                    Tier', 'Business Package', 'Enterprise Solution', 'Metered
                    Billing', 'Free Tier', 'Premium Access'
                prices:
                  type: array
                  items:
                    $ref: '#/components/schemas/schemas-PriceId'
                  description: Array of price IDs to associate with this plan
                taxBehavior:
                  type: string
                  enum:
                    - exclusive
                    - inclusive
                  description: >-
                    Whether tax is added on top of the price (exclusive) or
                    included in the price (inclusive)
                renewalReminderEnabled:
                  type: boolean
                  description: >-
                    Whether to send renewal reminder emails to customers before
                    their subscription renews
                renewalReminderDays:
                  type: integer
                  description: Number of days before renewal to send the reminder email
                  minimum: 1
                  maximum: 30
                billingAnchor:
                  type: string
                  format: date-time
                  nullable: true
                  description: >-
                    ISO 8601 datetime reference point for billing period
                    alignment. Must be in the past or present. Set to null to
                    clear the anchor and revert to start-time-based anchoring.
                creditAllocations:
                  type: array
                  items:
                    $ref: '#/components/schemas/PlanCreditAllocation'
                  description: >-
                    Credit-pool funding declarations for this plan. Each entry
                    funds a distinct pricing unit's credit pool when a
                    subscription to this plan activates: the allocated amount is
                    minted as a credit grant on the customer's pool for that
                    pricing unit, once at activation, or on a recurring basis
                    only when that allocation explicitly sets recurrencePeriod.
                    A plan may declare zero or more allocations; no two
                    allocations on the same plan may target the same
                    pricingUnitId.
      responses:
        '200':
          description: Plan updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Plan'
              example:
                id: plan_f3g4h5i6j7k8l9m0
                object: plan
                billingCadence: P1Y
                billingInterval: yearly
                createdAt: '2024-01-20T09:00:00Z'
                currency: USD
                defaultTaxCode: eservice
                defaultTaxRate: 8.5
                description: Complete machine learning infrastructure with GPU access
                invoiceDisplayName: ML Platform Enterprise
                merchantId: org_n1o2p3q4r5s6t7u8
                name: Enterprise Solution
                prices:
                  - price_d7e8f9g0h1i2j3k4
                productId: prod_v9w0x1y2z3a4b5c6
                taxBehavior: exclusive
                updatedAt: '2024-03-01T15:30:00Z'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    PlanId:
      type: string
      pattern: ^plan_[a-zA-Z0-9]+$
      description: Unique identifier for a plan
    schemas-PriceId:
      type: string
      pattern: ^price_[a-zA-Z0-9]+$
      description: Unique identifier for a price
    PlanCreditAllocation:
      type: object
      required:
        - pricingUnitId
        - amount
      properties:
        pricingUnitId:
          $ref: '#/components/schemas/PricingUnitId'
          description: >-
            The pricing unit whose credit pool this allocation funds. Must
            belong to the plan's own merchant.
        amount:
          type: number
          exclusiveMinimum: 0
          description: >-
            Number of credits minted into the customer's pool for this pricing
            unit each time the allocation is provisioned. Must be a positive
            number.
        recurrencePeriod:
          type: string
          description: >-
            ISO 8601 duration (e.g. 'P1M') controlling how often the
            allocation's credits are re-minted on the customer's pool.
            Recurrence is opt-in: when omitted, the allocation is minted once at
            subscription activation and never refills — even on a recurring
            plan. Set this field explicitly for credits that should replenish
            each period.
    Plan:
      type: object
      required:
        - id
        - object
        - name
        - billingCadence
        - billingInterval
        - currency
        - merchantId
        - productId
        - createdAt
        - updatedAt
      properties:
        id:
          $ref: '#/components/schemas/schemas-PlanId'
        object:
          type: string
          enum:
            - plan
        billingCadence:
          type: string
          enum:
            - P1M
            - P3M
            - P1Y
          description: ISO 8601 duration for the billing period.
          default: P1M
        billingInterval:
          type: string
          deprecated: true
          x-speakeasy-deprecation-message: 'Use billingCadence (ISO 8601 duration: P1M, P3M, P1Y) instead.'
          description: >-
            Deprecated. Human-readable billing period derived from
            billingCadence. Use billingCadence instead.
        createdAt:
          type: string
          format: date-time
        currency:
          type: string
        defaultTaxCode:
          type: string
          description: >-
            Default tax code for plan line items. Common values: 'eservice'
            (electronically supplied services), 'saas' (software as a service),
            'consulting', 'ebook', 'standard', 'reduced', 'exempt'. Full list
            available via GET /tax/codes endpoint.
        defaultTaxRate:
          type: number
          description: >-
            Fallback tax rate (as percentage) if automatic tax calculation is
            unavailable
        deletedAt:
          type: string
          format: date-time
        description:
          type: string
        invoiceDisplayName:
          type: string
        merchantId:
          $ref: '#/components/schemas/OrganizationId'
          description: The merchant organization that owns this plan
        name:
          type: string
        paymentTerm:
          type: object
          properties:
            in_arrears:
              type: boolean
            instant:
              type: boolean
        prices:
          type: array
          items:
            $ref: '#/components/schemas/Price'
        productId:
          $ref: '#/components/schemas/ProductId'
          description: The product this plan belongs to
        taxBehavior:
          type: string
          enum:
            - exclusive
            - inclusive
          description: >-
            Whether tax is added on top of the price (exclusive) or included in
            the price (inclusive)
        updatedAt:
          type: string
          format: date-time
        walletNamespaceId:
          $ref: '#/components/schemas/WalletNamespaceId'
        renewalReminderEnabled:
          type: boolean
          description: >-
            Whether renewal reminder emails are enabled for subscriptions using
            this plan
        renewalReminderDays:
          type: integer
          description: Number of days before renewal to send the reminder email
        billingVersion:
          type: integer
          description: Billing engine version. Managed by Paygentic support.
        billingAnchor:
          type: string
          format: date-time
          nullable: true
          description: >-
            ISO 8601 datetime reference point for billing period alignment. Must
            be in the past or present at the time of creation or update. When
            set, all subscriptions created under this plan align their first
            billing period to the next recurrence of this anchor. Null means
            each subscription uses its own start time (hour-rounded) as the
            anchor.
        creditAllocations:
          type: array
          items:
            $ref: '#/components/schemas/PlanCreditAllocation'
          description: >-
            Credit-pool funding declarations for this plan. Each entry funds a
            distinct pricing unit's credit pool when a subscription to this plan
            activates: the allocated amount is minted as a credit grant on the
            customer's pool for that pricing unit, once at activation, or on a
            recurring basis only when that allocation explicitly sets
            recurrencePeriod. A plan may declare zero or more allocations; no
            two allocations on the same plan target the same pricingUnitId.
    PricingUnitId:
      type: string
      pattern: ^pu_[a-zA-Z0-9]+$
      description: Unique identifier for a pricing unit
    schemas-PlanId:
      type: string
      pattern: ^plan_[a-zA-Z0-9]+$
      description: Unique identifier for a plan
    OrganizationId:
      type: string
      pattern: ^org_[a-zA-Z0-9]+$
      description: Unique identifier for an organization
    Price:
      type: object
      required:
        - id
        - object
        - merchantId
        - model
        - paymentTerm
        - invoiceDisplayName
        - properties
        - createdAt
        - updatedAt
        - quantity
      properties:
        id:
          $ref: '#/components/schemas/schemas-PriceId'
        object:
          type: string
          enum:
            - price
          default: price
        merchantId:
          $ref: '#/components/schemas/OrganizationId'
          description: >-
            The merchant organization that owns this price, derived from the
            associated fee or billable metric.
        billableMetricId:
          type: string
        feeId:
          type: string
          pattern: ^fee_[a-zA-Z0-9]+$
          description: The unique identifier for the fee referred to by this price
        billingCadence:
          type: string
          nullable: true
          description: ISO 8601 duration for billing frequency (e.g., P1M for monthly)
        createdAt:
          type: string
          format: date-time
        currency:
          type: string
        description:
          type: string
        invoiceDisplayName:
          type: string
        model:
          type: string
          enum:
            - standard
            - dynamic
            - volume
            - percentage
        paymentTerm:
          type: string
          enum:
            - instant
            - in_arrears
            - in_advance
        properties:
          type: object
          additionalProperties: true
        unitAmount:
          type: string
        updatedAt:
          type: string
          format: date-time
        features:
          type: array
          items:
            $ref: '#/components/schemas/PriceFeature'
          description: Features associated with this price
        grantDiscountEnabled:
          type: boolean
          default: false
          description: >-
            When true, grants applied to a subscription will discount usage
            charged by this price. Only supported for standard metered prices.
        quantity:
          type: integer
          minimum: 1
          maximum: 1000000
          default: 1
          description: >-
            Quantity used when generating invoice line items for this price.
            Total per period = quantity × unitPrice. Only supported for fee
            prices; metered prices derive quantity from usage. Defaults to 1.
    ProductId:
      type: string
      pattern: ^prod_[a-zA-Z0-9]+$
      description: Unique identifier for a product
    WalletNamespaceId:
      type: string
      description: Unique identifier for a wallet namespace
    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
    PriceFeature:
      type: object
      required:
        - id
        - featureId
        - entitlementTemplate
      properties:
        id:
          type: string
        featureId:
          type: string
        entitlementTemplate:
          type: object
          additionalProperties: true
        feature:
          type: object
          properties:
            key:
              type: string
            name:
              type: string
            type:
              type: string
              enum:
                - metered
                - static
                - boolean
  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

````