openapi: 3.0.3
info:
  title: Kontomatik Account Information Service Aggregation Summary API
  version: 1.0.0
  description: 'PSD2-regulated Account Information Service (AIS) for connecting to end-user

    bank accounts across Central and Eastern Europe. Supports Single Access

    (one-time data fetch) and Multiple Access (reusable consent token, up to

    180 days), redirection-based SignIn Flow, and mock-bank testing.

    '
  contact:
    name: Kontomatik Support
    email: support@kontomatik.com
    url: https://developer.kontomatik.com/
  license:
    name: Commercial — see https://kontomatik.com
servers:
- url: https://api.kontomatik.com/v1
  description: Production
- url: https://test.api.kontomatik.com/v1
  description: Test
security:
- ApiKeyAuth: []
tags:
- name: Summary
  description: Aggregated financial summaries
paths:
  /data-summary:
    get:
      tags:
      - Summary
      summary: Get Data Summary
      description: Aggregated calculations per category or account.
      operationId: getDataSummary
      parameters:
      - name: ownerExternalId
        in: query
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Summary returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DataSummaryResult'
  /data-summary-catalog:
    get:
      tags:
      - Summary
      summary: List Data Summary Catalog
      description: Lists supported summary categories.
      operationId: getDataSummaryCatalog
      responses:
        '200':
          description: Catalog returned
          content:
            application/json:
              schema:
                type: object
                properties:
                  categories:
                    type: array
                    items:
                      type: string
components:
  schemas:
    DataSummaryResult:
      type: object
      properties:
        ownerExternalId:
          type: string
        summary:
          type: object
          additionalProperties:
            type: object
            properties:
              total:
                type: number
              count:
                type: integer
              average:
                type: number
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-Api-Key
      description: API key issued by Kontomatik; requests must originate from a whitelisted server.