FGTS App — API Integration and Open Finance Solutions

Standard Deliverables

• Protocol analysis report (authorization flows, certificates, encryption, signing)
• RESTful API specifications (OpenAPI / Swagger) with examples
• Runnable server-side sample code (Node.js / Python; Java/Go optional)
• Automation test scripts and Postman collections
• Compliance guidance (data minimization, consent retention, audit trails)

Example: FGTS Balance Query API (pseudo-code)

# Request Example (pseudo-code)
POST /api/v1/fgts/balance
Content-Type: application/json
Authorization: Bearer <ACCESS_TOKEN>

{
  "cpf": "123.456.789-09",
  "account_id": "conta_fgts_001"
}

# Response Example
{
  "status": "OK",
  "accounts": [
    {
      "account_id": "conta_fgts_001",
      "balance": 12500.75,
      "available_for_withdrawal": 5000.00,
      "last_update": "2025-10-12T08:30:00Z"
    }
  ]
}

Example: Submit Withdrawal Request (pseudo-code)

POST /api/v1/fgts/withdrawal-request
Authorization: Bearer <ACCESS_TOKEN>
Content-Type: application/json

{
  "cpf": "123.456.789-09",
  "account_id": "conta_fgts_001",
  "reason": "Birthday withdrawal",
  "amount": 3000.00,
  "destination_bank": {
    "bank_code": "001",
    "agency": "1234",
    "account": "00012345-6",
    "holder_name": "FULANO DE TAL"
  },
  "documents": ["doc1_base64", "doc2_base64"]
}

Response: { "request_id": "RQ-20251012-0001", "status": "SUBMITTED" }

API Integration & Security Considerations

1. Authentication: Prefer OAuth2 / JWT or certificate-based mutual TLS (mTLS).
2. Device registration: Implement device binding (Cadastro de Dispositivo) and device identity verification.
3. Least privilege: Request FGTS data strictly under user consent.
4. Sensitive data handling: Documents uploaded/stored should be end-to-end encrypted; retain consent records and access logs.
5. Compliance: Adhere to LGPD (or local privacy laws), and the access policies of fiscal/social departments.

Information Needed Before Integration

• Target App name and platform (Android / iOS).
• Required features: balance, withdrawal, account binding, bulk queries, etc.
• Whether there are existing server credentials or a sandbox/test environment.
• Compliance or third-party approvals (e.g., CAIXA / Ministério approvals).

Our Core Advantages

• Financial-grade protocol analysis and app interface reverse engineering with compliance in mind
• Support for reproducing authorization flows on Android / iOS and backend implementations
• Deliver OpenAPI, SDK samples, automated tests and deployment guides
• Compliance delivery: privacy impact assessment, data retention policies and audit guidance
• Transparent pricing: starting at $300, with pay-after-delivery option

About Us

We are a studio focused on app protocol analysis and authorized API integration. Our team blends experience from payments, banking, and security, delivering compliant and auditable enterprise interfaces.

• End-to-end delivery: protocol analysis → development → validation → documentation
• Supports multi-language SDKs (Node.js / Python / Go) and deployment scripts
• Privacy and data minimization focus; NDA available
• Transparent pricing: starting at $300, with payment upon delivery

Contact

Ready to start? Submit your target App name and requirements via our contact page, and we will respond within 24 hours.

View / Submit Contact

Collaboration Process (Concise)

1. Requirements submission: inform integration points (login / payments / reconciliation / voice commands).
2. Protocol analysis: we provide technical and compliance evaluation within 2-5 business days.
3. Implementation and testing: develop runnable APIs (3-10 days depending on complexity).
4. Delivery and training: provide documentation, samples, Postman suite and deployment scripts.