Notch Invoices API

openapi: 3.0.1
info:
  title: Notch API (unreconciled capability model) Bank Accounts Invoices API
  description: 'Capability model of the Notch (notch.financial) accounts-receivable / accounts-payable automation platform for the food and beverage and wholesale distribution industry.

    IMPORTANT: Notch states an API is available for integration, but as of 2026-06-21 it does NOT publish a public developer reference, OpenAPI document, base URL, or authentication guide. This specification is an UNRECONCILED model derived from documented product capabilities (invoices/bills, payment collection and processing, customer payment portals, stored card and EFT/ACH payment methods, bank accounts, and accounting/ERP data sync). Paths, schemas, server URL, and the Bearer authentication scheme below are illustrative placeholders and are NOT confirmed against an official Notch specification. Do not treat them as production contracts. Reconcile against Notch''s developer documentation when it becomes publicly available.

    Disambiguation: not Notch Pay (notchpay.co), not notch.cx, and not the Notch restaurant ordering platform.'
  contact:
    name: Notch
    url: https://www.notch.financial
  version: 0.0.0-unreconciled
servers:
- url: https://api.notch.financial
  description: Placeholder base URL. Notch does not document a public API base URL; this value is illustrative and unverified.
security:
- bearerAuth: []
tags:
- name: Invoices
paths:
  /invoices:
    get:
      operationId: listInvoices
      tags:
      - Invoices
      summary: List invoices (unreconciled).
      description: Illustrative; not a documented Notch endpoint.
      responses:
        '200':
          description: A list of invoices.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Invoice'
    post:
      operationId: createInvoice
      tags:
      - Invoices
      summary: Create an invoice (unreconciled).
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Invoice'
      responses:
        '201':
          description: Invoice created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
  /invoices/{invoiceId}:
    get:
      operationId: getInvoice
      tags:
      - Invoices
      summary: Retrieve an invoice (unreconciled).
      parameters:
      - $ref: '#/components/parameters/invoiceId'
      responses:
        '200':
          description: An invoice.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
components:
  parameters:
    invoiceId:
      name: invoiceId
      in: path
      required: true
      schema:
        type: string
  schemas:
    Invoice:
      type: object
      description: An invoice / outstanding bill owed by a customer (illustrative).
      properties:
        id:
          type: string
        customer_id:
          type: string
        number:
          type: string
        status:
          type: string
          enum:
          - draft
          - open
          - paid
          - overdue
          - void
        currency:
          type: string
          example: USD
        amount_due:
          type: number
        amount_paid:
          type: number
        due_date:
          type: string
          format: date
        created_at:
          type: string
          format: date-time
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Illustrative Bearer API key scheme. Notch's actual authentication mechanism is not publicly documented and is unverified.