Woori WON Card — API Integration & OpenFinance Solutions

Card management, payment authorization, SSO and mobile card control — compliant, runnable API deliverables.

Starting at $300 · Pay after acceptance
OpenData · OpenFinance · Protocol Analysis · Card Control APIs

Integrate Woori WON Card card and payment capabilities securely into your systems

We specialize in reverse-engineering mobile banking protocols (where authorized), mapping legitimate authorization flows and delivering OpenData-compatible adapters. We deliver runnable backend samples and API documentation to help enterprises implement card controls, transaction retrieval and reconciliation.

Accounts & Card Control APIs — Login, device binding, temporary card freeze/unfreeze, card re-issue, masked PAN viewing and (where allowed) restricted PIN retrieval workflows.
Transactions & Reconciliation — Real-time and historical transaction feeds, installment details, statement export (Excel/CSV/JSON), merchant categorization and spend analytics.
Auth & Access — SSO integration, simplified login flows and biometric quick login chain analysis with token refresh implementation guidance.
Customer Experience Enhancements — Real-time notifications, offers & campaigns sync, chatbot and voice-assistant integration patterns.
Request Quote / Submit Requirements View Deliverables

What we deliver

Standard Deliverable Package

  • Protocol analysis report (login flows, handshake, crypto/signature points).
  • Runnable API source code (Node.js / Python) with Docker deployment examples.
  • OpenAPI (Swagger) documentation and Postman collections.
  • Automated test scripts and synthetic test data (no real user data).
  • Compliance recommendations (privacy, sensitive data minimization, audit logging).

Example API: Temporary Card Block (pseudo)

POST /api/v1/woori/card/block
Content-Type: application/json
Authorization: Bearer <APP_ACCESS_TOKEN>

{
  "customer_id": "CUST-12345",
  "card_id": "CARD-xxxx-xxxx",
  "reason": "reported_lost"
}

Response 200 OK
{
  "status":"OK",
  "blocked_at":"2025-11-19T12:15:30Z",
  "block_token":"blk_9a1b2c"
}

Typical integration scenarios

Card control & fraud flows, transaction feed synchronization (real-time + batch), SSO & enterprise directory integration (SCIM/LDAP), push notifications and customer support ticketing integration.

Our core strengths

  • Financial-grade security (TLS, HSM signing, FIDO/biometric compatibility).
  • Cross-platform protocol analysis: Android / iOS traffic reproduction and stabilization.
  • Compliance-focused delivery: data handling docs, minimization strategies and audit-log templates.
  • Speed of delivery: reusable SDKs, automation scripts and CI/CD examples.

API integration quick notes (for developers)

  1. Provide the target application package name (already provided) and the exact requirements (login/feeds/card-control/statements).
  2. We perform protocol and auth chain assessment (2–5 business days).
  3. Provide test credentials or an authorization sandbox account if available for verification.
  4. We deliver OpenAPI, sample code and automated tests and help you ship in 1–2 iterations.

Common endpoints needed: /auth/login, /auth/refresh, /cards, /cards/{id}/block, /transactions, /statements, /offers, /devices/bind

About our studio

We are a global technical studio focused on app protocol analysis and compliant API integration. Our team comes from mobile payments, banking and security backgrounds. We provide end-to-end services: protocol reverse analysis, API adapter development, OpenData/OpenFinance integration and source-code delivery.

  • Android/iOS protocol analysis and secure implementation experience.
  • Deliverables in Python / Node.js / Go including SDKs and deployment scripts.
  • Compliance-first: KYC, privacy and minimal data retention strategies.
  • Transparent pricing: starting at $300. Pay after acceptance option available.

Contact

Ready to evaluate or start a project? Submit the target app and requirements via the contact page and we will respond within 24 hours.

Visit contact page /contact.html

📱 Original app: Woori WON Card — full feature overview (collapsed)

Overview (translated)

Woori WON Card (formerly Woori Card) has been upgraded to Woori WON Card to unify card services, customer support and promotional channels. Main functions include card statement viewing, payment estimates, card limits and recent transactions; card control (freeze/unfreeze/re-issue); card application; personalized offers and recommendations; SSO/automatic login; biometric login (fingerprint/face); voice/chatbot support; NFC/transport card and QR payments; permission management and privacy disclosures. The app also exposes related services and unified login to the Woori ecosystem.

Permissions & Security

The app may request phone, location, camera and microphone permissions to support document capture, QR scanning, voice assistance and card triggers. Rooted or modified devices may be blocked for security reasons.

User scenarios

  • Quickly view estimated payment amounts, statements, limits and recent transactions.
  • Apply for, activate, reissue and temporarily freeze cards via the mobile app.
  • Receive personalized offers and manage member benefits.
  • Seamless integration with the Woori WON ecosystem (members/marketplace).
  • Multiple login methods: password, fingerprint, pattern and biometrics.

Original excerpt (Korean)

[새로운 기능]
- 우리카드 스마트앱이 더욱 다양한 기능을 담아 우리WON카드 앱으로 업그레이드 되었습니다.
- 홈페이지/모바일앱/모바일웹에서 동일한 경험이 가능하도록 구성하였습니다.
- 모든 페이지마다 하단에 연관/주요 서비스를 위치하여 고객의 접근 가능성을 향상하였습니다.
- 자동로그인, SSO(Single Sign On) 등 특화 기능을 통해 이용 편의를 제고하였습니다.
※ 우리WON카드로 앱이 리뉴얼 되어 간편 비밀번호, 생체인증 등의 재설정이 필요합니다.

[서비스 소개]
1) MY
- 결제예상금액(이용대금명세서), 이용한도, 보유카드조회, 최근이용내역 등 주요 카드이용정보를 확인할 수 있습니다.
- 은행/카드 등 고객님의 금융 내역/자산을 한 번에 조회할 수 있습니다。

...（application store excerpt）

Note: this translation and excerpts are provided for technical integration and requirement scoping only. The official app store listing is the authoritative source.

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