openapi: 3.0.3 info: title: Kontomatik Account Information Service Aggregation Owner 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: Owner description: Owner data lifecycle paths: /data/delete: post: tags: - Owner summary: Delete Owner Data description: Permanently removes all data for the specified owner. Default retention is 24 hours. operationId: deleteOwnerData requestBody: required: true content: application/json: schema: type: object required: - ownerExternalId properties: ownerExternalId: type: string responses: '200': description: Data deleted /owner-upload: post: tags: - Owner summary: Upload Owner Data description: Uploads custom owner / account / transaction data in XML or JSON for analysis alongside bank-sourced data. operationId: uploadOwnerData requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/OwnerUpload' responses: '200': description: Upload accepted components: schemas: OwnerUpload: type: object required: - ownerExternalId properties: ownerExternalId: type: string owners: type: array items: type: object accounts: type: array items: type: object transactions: type: array items: type: object securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-Api-Key description: API key issued by Kontomatik; requests must originate from a whitelisted server.