CaixaBank API Integration Services · OpenBanking / PSD2

Compliance API implementations, protocol analysis, and runnable source code delivery for the Spanish and EU markets

Starting at $300 · Source code delivery
OpenBanking · PSD2 · OpenData · Protocol Analysis

Secure CaixaBank accounts, Bizum payments, and product capabilities integration into your system

We provide protocol analysis via public/authorized channels, OAuth2/TPP authorization simulations, AIS (Account Information Service) aggregation, PIS (Payment Initiation) including Bizum, transaction exports and reconciliation interfaces. All deliveries comply with GDPR and PSD2.

AIS (Account Information) Aggregation — supports account lists, balances, and transaction history (paginated, by time range, categorized), with outputs in JSON, CSV, or Excel reports.
Payments & Bizum Integration — implements client/server authorized payment flows, real-time Bizum transfers simulation and callback handling, with 3DS and SCA verification flows.
Card & Product Management — card status queries, transaction notifications, installment/loan product information capture and day-to-day reconciliation.
Youth / Parental Control Scenarios — modeling Sponsored Accounts, parent approval workflows, and role-based access design.
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Deliverables & Examples

Standard Deliverables

  • API specifications (OpenAPI / Swagger) and auth flow diagrams
  • Protocol analysis report (auth chains, signatures, session management)
  • Runnable backend samples (Node.js / Python) and SDK templates
  • Automated tests and CI integration guidelines
  • Compliance recommendations (data minimization, logging, consent records)

Example: Get Account Transactions (pseudo-code)

# POST /api/v1/caixabank/audit/transactions
Content-Type: application/json
Authorization: Bearer <SERVICE_ACCESS_TOKEN>

{
  "client_id": "your-tpp-id",
  "account_iban": "ESXXYYYYYYYYYYYYYYYYYYYY",
  "from": "2025-09-01",
  "to": "2025-09-30",
  "format": "excel" // json | csv | excel
}

Response: 200 OK
{ "status":"OK","file_url":"https://.../statements/txns_sep.xlsx" }

Bizum / PIS Integration Highlights

We will deliver: payment initiator and receiver authorization demonstration, SCA redirect handling, webhook signature validation and retry strategy, and bank-side payment status synchronization examples.

API Integration Guide (Quick Start)

  1. Provide target scenario: e.g., statement export / card notifications / Bitcoin orders.
  2. Confirm authorization method: customer-provided OAuth credentials, developer keys, or mutually agreed test accounts.
  3. Protocol analysis: evaluate available public APIs, required authorization flows, and compliance constraints (usually 2-5 business days).
  4. Development deliverables: deliver SDKs, sample code, Postman collections and test cases (typically 3-8 business days).
  5. Go-live and auditing: help configure webhooks, logging and audit policies, provide compliance and operations guidance.

Security & Compliance (Key Points)

  • Operate only under customer authorization or public API; no bypassing protections.
  • Support data minimization, encryption in transit, access logging and consent records.
  • Provide parental control and data isolation for youth accounts where applicable.
  • Assist in drafting privacy notices and compliance documentation as needed.

About Us

We are a tech studio focusing on App protocol analysis and authorized API integration for finance, payments, travel and retail sectors. Our team has extensive experience delivering compliant, reproducible OpenData/OpenFinance integrations.

  • PSD2 / Open Banking, OAuth2, SCA & 3DS support
  • Runnable source code (Node.js / Python / Go), OpenAPI docs and test suites
  • Compliance guidance: GDPR, data minimization, NDA support
  • Transparent pricing: starting at $300, with pay-after-delivery options

Contact Us

To start a project or request a quote, click the button below to reach our contact page and submit the target app name and requirements:

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📱 CaixaBank Official App Features (Expandable)

CaixaBank app is a digital banking client for the Spanish market, supporting account inquiries, card and transaction management, loan and investment products, Bizum instant transfers, and smart personal finance analysis. It includes installments (Facilita) and Moments offers, with Wear OS compatibility to help users stay on top of their finances.

  • Accounts & Cards: view transactions, balances, spending by category, and bill reminders
  • Bizum: send instant transfers by mobile number without IBAN
  • Savings Goals & Investment Funds: set goals and manage portfolios
  • Loans & Mortgages: view and initiate applications
  • Installments & Offers: Facilita and Moments promotions
  • Stock & Market Monitoring, Branches & ATMs

Note: This document is for technical integration demonstration only, based on publicly available information and typical scenarios. For production integration with CaixaBank, obtain API documentation and compliance access through official channels.