OTP SZÉP Card — Interface Integration & Protocol Analysis Service

Focusing on mobile SZÉP Card protocol analysis, transactions and balances APIs, point-of-access map retrieval, and compliant delivery (Starting at $300).

Delivery typically 5–12 business days · Starting at $300
OpenData · Protocol Analysis · Compliance Delivery

Rapidly integrate OTP SZÉP Card data and capabilities into enterprise systems

We provide runnable API implementations, reproduction of authorization flows, automated reconciliation and geolocated merchant search for POS/merchants. Services comply with GDPR and Hungarian local regulations.

Real-time balance & transaction queries — supports historical balances, per-transaction history, and two-year unused welfare balance inquiries, with time ranges and pagination.
Merchant location search — expose merchant acceptance points with geolocation and search interfaces for integration into merchant locator services.
Account registration & session synchronization — supports OTP Portal registration logic, card-number + date of birth authentication, and login sessions with biometric (fingerprint/face) and secure storage.
Compliance auditing & privacy protection — provide consent records, data minimization retention policies, and GDPR compliance guidance.
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Deliverables (Sample)

Standard Deliverables

  • OpenAPI / Swagger interface specifications
  • Protocol & authorization flow analysis reports (including token lifecycle, session, and signing mechanisms)
  • Runnable backend code (Node.js / Python) with deployment notes
  • Automated test scripts and Postman collections
  • Privacy & compliance guidance (data minimization, logging, consent records)

Interface Example — Transactions & QR Pay (pseudo)

// Example: Create merchant QR for payment (pseudo)
POST /api/v1/yape/merchant/qrcode
Content-Type: application/json
Authorization: Bearer <APP_TOKEN>

{
  'merchant_id': 'MCH12345',
  'amount': 45.50,
  'currency': 'EUR',
  'reference': 'ORDER-20251105-001'
}

Response: {
  'status': 'OK',
  'qr_code_url': 'https://yape.qr/xyz123',
  'qr_payload': 'eyJ0eXAiOiJKV1Q...' 
}

Integration Scenarios

Merchant QR payments, wallet balance sync, merchant onboarding, tax and compliance reporting, and voucher/discount integration.

Security & Compliance

All implementations are based on user authorization or publicly available APIs. We adopt data minimization, end-to-end encryption, and can support NDA and security assessments.

Notes on Integration

  1. OAuth2 / JWT authorization: supports client credentials flow and user delegation
  2. Card tokenization: works with card networks to tokenize and inject into mobile wallets
  3. Webhooks & events: real-time consumption, refunds, balance changes
  4. Rate limiting & idempotency: supports idempotent operations and batch exports

About Us

We are a technology studio specializing in mobile app interface integration and authorization protocol implementation. Our team has extensive experience in finance, payments, and data privacy, delivering compliant, deployable OpenFinance/OpenBanking solutions.

  • Cross-platform: Android / iOS protocol replication and API layer implementation
  • Deliverables: OpenAPI, sample SDKs (Node/Python/Go), Postman sets, and testing plans
  • Compliance-first: GDPR, local privacy regulations and security best practices
  • Transparent pricing: starting at $300, pay-on-delivery available

Contact & Next Steps

Ready to begin? Please visit our contact page to submit your target App name and integration details (e.g., transactions, balance, card onboarding).

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📱 OTP SZÉP Card App — Full feature overview (collapsed)

Below is the official feature overview of the OTP SZÉP Card app, provided for technical integration reference:

  • Mobile onboarding: 3 minutes setup for digisign (registration / MyInfo / digital token)
  • Daily banking: view balances across multi-currency deposits, apply for loans and credit cards without login
  • Cross-border remittance: Remit supports same-day transfers with low fees in certain cases
  • Intelligent services: personalized insights, bill reminders, duplicate payment detection and token verification
  • Payments: seamless integration with PayNow / PayLah! for fast transfers and social payments
  • Investments & goals: digiPortfolio, asset overview, loan scenarios for planning
  • Sustainable features: track and participate in green investments and offers