Fineco API Integration and Open Finance Services

Delivery Contents

• Protocol analysis report (authorization flows, encryption, session mechanics, API endpoints)
• OpenAPI/Swagger specifications with example requests
• runnable back-end sources (Node.js / Python) and deployment guidance
• Test cases, automated scripts and mock service for integration
• Compliance and privacy guidance (data minimization, logs, consent records)

Demo: Query Account Transactions (pseudo-code)

# Obtain access token (OAuth2 password or authorization code flow)
POST /oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=authorization_code&code=<AUTH_CODE>&client_id=<CLIENT_ID>&client_secret=<CLIENT_SECRET>

# Query account balance
GET /api/v1/accounts/<account_id>/balance
Authorization: Bearer <ACCESS_TOKEN>

# Query transactions (paginated)
GET /api/v1/accounts/<account_id>/transactions?from=2025-01-01&to=2025-12-31&page=1&page_size=100
Authorization: Bearer <ACCESS_TOKEN>

Response 200 OK
{
  "transactions": [
    {"id":"TX123","date":"2025-09-01","amount":-120.50,"description":"Card Payment","currency":"EUR"},
    {"id":"TX124","date":"2025-09-02","amount":4500.00,"description":"Salary","currency":"EUR"}
  ],
  "page":1,"page_size":100,"total":2
}

Deliverable Modules

Example modules: account linking, transaction synchronization, real-time price subscription, report exports (Excel/CSV), reconciliation engine, asynchronous notifications and webhook management.

Core Advantages

• Experience across global financial products and PSD2/OpenBanking practices
• Deliverables are compliant and auditable with data minimization strategies
• Supports Android/iOS protocol analysis and authorization flow recreation (described as protocol analysis and authorization simulation)
• Delivered runnable SDKs, interface simulators and automated test suites

Integration Tips & Considerations

When integrating, we recommend:

1. Prefer official authorizations or explicit user consent login flows, keep consent records for audits.
2. Implement short-lived tokens with background refresh to reduce secret exposure risk.
3. Encrypt sensitive data at rest and limit sensitive fields in logs.
4. Align data handling and retention with regional regulations (GDPR / LGPD / PSD2).

API Integration Quick Guide (Tech)

1. Describe target scenarios: account sync, reconciliation, order placement or price subscription.
2. Assess required permissions and authorization flows (typically 1-3 business days).
3. Deliver OAuth2 client samples, API routes and error handling conventions.
4. Provide mock server and automated tests, along with SDK and deployment guidance.
5. Offer 7 days of free post-delivery technical support for debugging.

Demo Code (Node.js Quick Request)

// Node.js (axios) - Example: fetch transactions
const axios = require('axios');

async function listTx(accessToken, accountId){
  const res = await axios.get(`https://api.fineco.example/v1/accounts/${accountId}/transactions`,{
    params:{from:'2025-01-01',to:'2025-12-31'},
    headers:{Authorization:`Bearer ${accessToken}`}
  });
  return res.data;
}

About Us

We are a studio focused on mobile app protocol analysis and authorized API integration for global clients. Our team comes from fintech, payments gateways and cloud-native backends, and we deliver compliant, auditable technical deliverables, including source code and documentation.

• Support for OpenAPI, OpenID Connect, OAuth2, PSD2 compliance workflows
• Deliver SDKs, sample code, test plans and operations guidance
• With optional NDA, compliance assessments and privacy guidance
• Transparent pricing: base service starting at $300, with pay-after-delivery options

Contact

For quotes, to submit target app names and integration requirements (e.g., account reconciliation, transactions, or price feeds), please visit our contact page:

Visit Contact Page