Caixa App — Protocol Analysis and OpenFinance Integration Service

Delivery Package (Example)

• Protocol analysis report (authorization flow, keys, certificates, encryption channels, and critical API touchpoints)
• Standardized API (OpenAPI / Swagger) with sample requests/responses
• Runnable source code (Node.js / Python / Java optional) and deployment notes
• Automated tests and API validation cases
• Compliance guidance (data minimization, log retention, user consent records)

Example: Statement Inquiry API (illustrative)

POST /api/v1/caixa/statements
Content-Type: application/json
Authorization: Bearer <ACCESS_TOKEN>

{
  "account_id": "1234567890",
  "from": "2025-09-01",
  "to": "2025-09-30",
  "type": "ALL",
  "format": "xlsx"
}

Response 200 OK
Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

-- Returns a downloadable Excel reconciliation statement --

Typical Integration Scenarios

Account binding (two-factor), account aggregation views, transaction alerts (fees/late charges), bulk reconciliation, real-time processing and refund callbacks.

API Integration Guide (Getting Started)

1. Confirm target needs: account inquiry / statements / payments / device binding.
2. Provide test accounts or authorization (client-owned or publicly/authorized API access).
3. We perform protocol analysis and deliver a technical plan (2-5 business days).
4. Development and internal testing (3-10 business days, depending on complexity).
5. Deliver runnable API, OpenAPI documentation, sample clients and test scripts; assist with deployment and acceptance.

Example endpoints (delivery will include full specifications and authentication flows): /auth/session, /accounts/{id}/balance, /accounts/{id}/transactions, /payments/qr, /webhooks/payment-status

Compliance & Privacy (LGPD / Local Regulations)

All work is based on client authorization or public/partner APIs. We provide data minimization, encrypted transmission, audit logs and user consent record design guidance; NDA and onboarding compliance checks available if needed.

About Us — API Integration Studio

We are a technical team focused on mobile app protocol analysis, Open Banking / OpenFinance and third-party API integration. Our members come from payments gateways, banks and security disciplines, delivering compliant, auditable, one-stop technical solutions for global clients.

• Support Android / iOS protocol analysis and SDK-level implementations
• Deliverables: runnable source code, OpenAPI, test scripts and deployment documentation
• Transparent pricing: starting at $300, payment upon satisfactory delivery (negotiable)
• Specialize in financial scenarios: statements, payment gateways, device (POS) integration, cross-border settlements

Contact

Ready to start? Provide the App name and basic requirements, and we will deliver an executable technical plan and quote.

Visit Contact Page / Submit Request