Inter — Open Finance API Integration & Protocol Engineering

OpenData / OpenFinance compliant integration: accounts binding, reconciliation, international remittance, investments and card management.
Starting at $300 · Flexible payment terms
OpenFinance · OpenBanking · Protocol Analysis · International Remittance

Integrate Inter’s financial capabilities securely into your product and services

We provide end-to-end, compliant interface implementations based on open/authorized interfaces: account binding & authorization, transaction details and statement exports, cross-border payments, and syncing of card and investment data. Multilingual support (English/Spanish/Portuguese) is available.

Account Authorization & Session Management — Implement user account binding, token acquisition and refresh, session lifecycle control and security policies.
Transactions & Statements API — Support by time range, transaction type and status filtering, export JSON/CSV/Excel for easy accounting and tax reconciliation.
International Remittance & FX Aggregation — Support cross-border transfers to 60+ countries, fetch rates, track payment status and settlement receipts.
Investments & Asset Sync — Brokerage-level transaction history, holdings and mark-to-market, support micro-investments and ETF trading capture.
Get a Quote View Deliverables

What We Deliver

Standard Deliverables

  • OpenAPI / Swagger interface specifications and sample requests/responses
  • Protocol & authorization flow analysis report (including OAuth2 / PKCE, certificates)
  • Runnable backend code (Node.js / Python) with deployment scripts
  • End-to-end automated tests, sample clients and test plan
  • Compliance guidance (data minimization, logging, consent records)

Interface Example: Transactions & Reconciliation (Pseudo-code)

POST /api/v1/inter/auth/token
Content-Type: application/json

{ "grant_type": "authorization_code", "code": "", "redirect_uri": "https://your.app/callback" }

GET /api/v1/inter/accounts
Authorization: Bearer <ACCESS_TOKEN>

Response:
{
  "accounts": [
    { "iban":"IT60X0542811101000000123456","currency":"EUR","balance":12500.50 },
    { "iban":"IT60X0542811101000000654321","currency":"EUR","balance":340.12 }
  ]
}

POST /api/v1/inter/transfer/sepa
Authorization: Bearer <ACCESS_TOKEN>
{ "from_iban":"IT60...","to_iban":"IT88...","amount":250.00,"currency":"EUR","purpose":"Payment" }

Key Integration Scenarios

Account aggregation, transaction export, SEPA transfers, enterprise document signing, and multi-entity integration with an API gateway and auditing.

Core Value

  • Rapid delivery: from protocol analysis to core interfaces to docs and tests (typical projects 5–12 workdays)
  • Compliance-first: only operate on client authorization or public APIs, with data minimization strategies
  • Cross-platform support: Android / iOS / Web backend SDKs optional
  • Extensible deliverables: from single interface to enterprise API gateway with auditing

Integration Guide (Quick Start)

  1. Provide the target scenario and required permissions (e.g., account aggregation, SEPA transfers, card management)
  2. We perform protocol and authorization feasibility analysis (2–5 business days)
  3. Deliver OpenAPI, SDK, and middleware; run tests in a sandbox (3–8 business days)
  4. Finish with documentation, test data, and deployment guidance; 30 days of technical support

About Our Studio

We are a tech studio focused on app protocol analysis and compliant API integration for banking & fintech, with experts in mobile apps, payments, and financial services. We deliver end-to-end solutions from protocol analysis to OpenData integration and Open Banking / Open Finance API delivery.

  • Supports OAuth2, mTLS, JWT; enterprise-grade security
  • OpenAPI, sample SDKs (Node/Python/Go), and test suites
  • Compliance-first approach (PSD2, GDPR, local regulations)
  • Transparent pricing: starting at $300; pay upon completion

Contact us

Ready to get started? Visit our contact page to submit your App name and requirements, and we’ll respond within 24 hours.

Visit Contact Page / Submit Request

📦 Original App Full Description (Appendix, Collapsible)

Original App Description (Portuguese)

MEI Fácil sempre fez parte do grupo Neon e agora ela virou parte oficial do nosso app! Agora todos os serviços que você conhece estão na Área MEI do aplicativo Neon.

Tudo agora em um único lugar para você não precisar pular de app em app.

No app Neon você tem todos os serviços MEI:
- Abertura de CNPJ MEI
- Gerenciamento e pagamento de DAS
- Serviço de contabilidade
- Declaração anual (DASN)
- Certificado MEI (CCMEI)
- Cartão CNPJ

Além disso você ganha muitas vantagens que só a Neon pode te oferecer:
- Viracrédito, seu dinheiro rende e ainda vira crédito
- CDB Neon que rende mais que a poupança
- Cartão* sem taxas e 100% gratuito (sujeito à análise de crédito)
- Pix e boleto no crédito 
- Lente Neon, apontou a câmera do celular, pagou! 

Mais facilidades para o pro seu corre!

English Summary (for Technical Evaluation)

MEI Fácil has been integrated into Neon, providing MEI registration (CNPJ/MEI), DAS management and payments, accounting services, annual DAS declaration, CCMEI certificate, and CNPJ card features, along with Neon’s financial services advantages (credit growth, higher yields, no-fee card, Pix and Boleto support). The content above is used for technical evaluation and integration planning; actual interfaces depend on authorization and compliant public APIs.