ING App — API Integration and Open Banking Solutions

For personal and business customer scenarios, providing compliant protocol analysis, PSD2/OAuth2 integration, and runnable API code delivery

Starting at $300
OpenData · OpenBanking · PSD2 Compliance · Protocol Analysis

Integrate ING's accounts, payments and wealth capabilities securely into your system

For domestic and cross-border ecommerce, accounting SaaS, financial dashboards and payment integrations, we provide AIS (account information), PIS (payment initiation), and transaction interfaces based on authorization.

Authorization & Login Integration — Supports OAuth2 / OpenID Connect, MFA (PIN / biometrics) and token refresh strategies, compliant with PSD2 SCA requirements and ASPSP practices.
Account & Transaction Synchronization — Implements account balances, transaction streams, categorization and installment/card statements capture, supports pagination, filtering, CSV/Excel exports and report generation.
Payments & QR Integration — Supports initiating payments via QR, Google Pay and internal transfer channels, with payment status callbacks and reconciliation confirmations.
Intelligent Finance & Compliance — Provides KYC/AML guidance, data minimization retention policies and audit logging solutions to meet EU/local regulatory requirements.
Request a Proposal View Deliverables

Delivery & Capabilities

Standard Deliverables

  • OpenAPI / Swagger interface specifications and sample requests
  • Protocol & authorization flow reports (OAuth / JWT / session and refresh)
  • runnable back-end implementations (Node.js / Python / Go optional) with unit tests
  • Webhook handling and event processing with retry strategies
  • Compliance guidance on data retention, logging, and consent

API Examples (pseudo-code)

// OAuth2 Get Access Token (example pseudo-code)
POST /oauth2/token
Content-Type: application/x-www-form-urlencoded

grant_type=authorization_code&code=&redirect_uri=&client_id=&client_secret=

# Query account balances
GET /api/v1/accounts//balances
Authorization: Bearer 

# Get transactions with pagination
GET /api/v1/accounts//transactions?from=2025-10-01&to=2025-10-31&page=1&size=100
Authorization: Bearer 

# Initiate payment (PIS example)
POST /api/v1/payments
Authorization: Bearer 
{
  "debtor_account": "NL...IBAN",
  "creditor_account": "NL...IBAN",
  "amount": 125.50,
  "currency": "EUR",
  "remittance": "Invoice 1234"
}

Typical Integration Scenarios

Account onboarding automation, settlement routing to payment gateways, batch settlements and automated reconciliation, and multi-region reporting for travel or e-commerce platforms.

API Integration Quick Guide

  1. Provide target app information (package name and required features such as reconciliation and payroll).
  2. Authorization & minimum privileges: adopt OAuth / JWT or in-app session authorization; clearly define read vs transaction permissions.
  3. Protocol analysis: capture and analyzes app-backend communication to generate call flows and templates (upon client authorization).
  4. Development & delivery: deliver runnable APIs, SDK examples and OpenAPI documentation, plus test cases and CI integration guidance.
  5. Deployment & ongoing support: optional threat assessment and production credential onboarding.

Security & Compliance

All integrations are performed under client authorization or via public APIs; we provide privacy-preserving data minimization and audit logs, plus NDA where needed.

About Us

We are a studio focused on app protocol analysis and compliant API integration for financial tech and digital wallets. Our team has experience across payments, banking, and cloud security, delivering end-to-end solutions from protocol analysis to production-ready code.

  • Supports Android / iOS protocol analysis and integration
  • OpenAPI, SDK and automated tests delivered
  • Compliance-first: GDPR/PDPA and local data rules guidance
  • Transparent pricing: starting at $300, pay on delivery acceptance

Contact Us

If you want to start an integration or discuss a project, please visit our contact page and submit your app name and requirements.

View Contact Page

📱 ING Banking App Full Overview (collapsed)

ING Banking App – Features

The ING Banking App provides personal and business banking features including account management, authentication, payments, and various financial services. This section summarizes generic features for technical integration planning.

  • Account balance and transactions overview
  • Card management and payments
  • KYC/AML and security controls
  • Push notifications and in-app messaging

Notes: This content is a summarized rendering for integration planning and does not reflect any official ING material. For real integration, provide authorization credentials or public APIs.

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