Rillet Contract Items API

openapi: 3.2.0
info:
  title: Rillet Accounting Contract Items API
  version: v4.0
servers:
- url: https://api.rillet.com
  description: Production server url
- url: https://sandbox.api.rillet.com
  description: Test server url
security:
- bearerAuth: []
tags:
- name: Contract Items
paths:
  /contract-items/{contract_item_id}/usage:
    patch:
      tags:
      - Contract Items
      operationId: upsert-a-usage-record
      summary: Upserts a usage record
      parameters:
      - name: contract_item_id
        in: path
        required: true
        description: UUID of the contract line item that carries the usage-priced product.
        schema:
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UsageRecords'
        required: true
      description: Creates usage records on dates where previously no usage was recorded. Overwrites usage records on dates where usage was previously recorded already.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UsageRecords'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    get:
      tags:
      - Contract Items
      operationId: list-all-contract-item-usage-records
      summary: Lists all contract item usage records
      description: 'Returns historical usage quantities for a contract item, newest first, with optional pagination cursors.

        Use before upsert-a-usage-record or delete-a-usage-record to understand existing coverage for each date.

        '
      parameters:
      - name: contract_item_id
        in: path
        required: true
        description: UUID of the contract line item whose usage rows are being listed.
        schema:
          type: string
      - $ref: '#/components/parameters/limit'
      - $ref: '#/components/parameters/cursor'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/UsageRecords'
                - type: object
                  properties:
                    pagination:
                      $ref: '#/components/schemas/Pagination'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    delete:
      tags:
      - Contract Items
      operationId: delete-a-usage-record
      summary: Deletes a usage record
      description: 'Removes the usage entry for a single contract item on a specific calendar date.

        This is narrower than upsert-a-usage-record and is ideal when you need to wipe a mistaken day without resending the entire usage payload.

        '
      parameters:
      - name: contract_item_id
        in: path
        required: true
        description: UUID of the contract line item whose usage row should be removed.
        schema:
          type: string
      - name: date
        in: query
        description: Calendar date of the usage row to delete (ISO-8601 format).
        schema:
          type: string
          format: date
        required: true
      responses:
        '204':
          description: No Content
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    PageLimit:
      type: integer
      minimum: 1
      maximum: 100
      default: 25
    Pagination:
      type: object
      properties:
        next_cursor:
          $ref: '#/components/schemas/PageCursor'
    UsageRecords:
      type: object
      required:
      - usage
      properties:
        usage:
          type: array
          minItems: 1
          items:
            $ref: '#/components/schemas/Usage'
      description: Allows you to update multiple dates at once.
    PageCursor:
      type: string
      description: If defined, a cursor to retrieve the next page.
      example: iLQvkEj3sh3UiweC
    Usage:
      type: object
      required:
      - date
      - quantity
      properties:
        date:
          type: string
          format: date
        quantity:
          type: number
          format: float
          minimum: 0
          exclusiveMinimum: true
          example: 1
    Error:
      type: object
      required:
      - type
      - title
      properties:
        type:
          type: string
          format: uri
          description: A URI reference that identifies the error type.
          example: https://rillet.io/forbidden
        title:
          type: string
          description: Summary of the problem.
          example: Forbidden
        status:
          type: integer
          description: The HTTP status code generated by the origin server for this occurrence of the error.
          example: 403
        detail:
          type: string
          description: Explanation specific to this occurrence of the error.
          example: User does not have rights to perform this operation.
  parameters:
    limit:
      name: limit
      in: query
      required: false
      description: Maximum number of rows to return in the page.
      schema:
        $ref: '#/components/schemas/PageLimit'
    cursor:
      name: cursor
      in: query
      required: false
      description: Pagination cursor to navigate through the full response.
      schema:
        $ref: '#/components/schemas/PageCursor'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
x-mcp-ready: true
x-readme:
  headers:
  - key: X-Rillet-API-Version
    value: '4'