George (at.erstebank.george) — OpenBanking / OpenFinance Interface Integration

Based on OpenBanking / OpenData, protocol analysis, account and payment synchronization, investment data integration, compliant API implementation and source code delivery

Starting at $300
Deliverables: source code + documentation + test cases
OpenData · OpenFinance · Protocol Analysis · Data Integration

Securely and compliantly connect George's accounts, payments and investments to your system

We provide backward-compatible protocol analysis, OpenData integration, authorization reproduction, and deliver running API code, detailed OpenAPI docs, and client/server sample code to enable quick onboarding with compliance and audit readiness.

Account & Authorization Management — Support for user-based login, session tokens, refresh tokens, and least-privilege access models with simulated authorization chains for compliant data syncing.
Transactions & Billing Export — Retrieve transaction details, postings vs settled, categorize by type/merchant; export as JSON/CSV/Excel/PDF for finance and tax needs.
Payments & Transfers — Integrate intra-bank and interbank transfers, QR payments, and real-time payment channels; support idempotency and settlement notifications.
Wealth & Investments Data — Retrieve and normalize holdings and NAV, exportable portfolios and transactions for investment analytics.
Contact for a quote View deliverables

Deliverables & Examples

Standard Deliverables

  • OpenAPI / Swagger specifications and endpoint samples
  • Protocol & authorization flow analysis (OAuth2, JWT, mTLS)
  • Running backend samples (Node.js / Python) with deployment guide
  • Automated tests and API contract sets (Postman)
  • Compliance guidance (data minimization, privacy policies, audit logs)

Interface Example: Account & Billing Query

# POST /api/v1/george/accounts/statement
Content-Type: application/json
Authorization: Bearer 
{
  "account_id": "AT-12345678",
  "from": "2025-09-01",
  "to": "2025-09-30",
  "type": "ALL",
  "page": 1,
  "page_size": 100
}

Response: {
  "status": "OK",
  "account": "AT-12345678",
  "transactions": [
    {"id":"TX-001","date":"2025-09-05","amount":-25.60,"currency":"EUR","description":"Coffee Shop","status":"BOOKED"},
    {"id":"TX-002","date":"2025-09-10","amount":1000.00,"currency":"EUR","description":"Salary","status":"BOOKED"}
  ],
  "page":1,
  "total_pages":1
}

Use Case Spotlight

Account aggregation, transaction synchronization, payments (QR/Scan & Pay), investment holdings export, webhook events, multi-language & accessibility support, enterprise multi-tenant onboarding and compliance auditing.

Compliance & Security

All implementations are performed under client authorization or public/partner API access. We provide data minimization guidance, audit logs, consent records, and optional NDA for compliant handoffs and security assessments.

Studio Overview

We are a boutique focused on App protocol analysis and open finance API integration. Our team comes from banking, payments, and security domains, delivering compliant, production-ready interfaces with documentation and test artifacts.

  • OpenData / OpenBanking compliance experience
  • OpenAPI, SDKs, test suites and deployment guides
  • NDA and privacy considerations available
  • Transparent pricing: starting at $300 with post-delivery payment options

Contact

Ready to start integration or need a quote? Visit our contact page to submit your app name and requirements.

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📱 Original App: George (at.erstebank.george) — Function Overview (collapse)

George (Erste Bank) provides a mobile banking experience with account management, quick transfers, investments, and personalized insights. Core features include:

  • Account and card management: view balances and transactions, adjust card limits
  • Real-time payments: scans for payments, real-time transfers, and bill payments
  • Investments: track and trade ETFs, stocks, funds, and manage portfolios
  • Personalized insights: savings tips and financial health indicators
  • Multilingual and accessibility support

Note: This overview is a summary based on public app descriptions; actual integration should be based on authorized access and compliance requirements.