Overseas App API Integration & Authorization Services

Who We Are

We are a technology services team serving overseas clients, specializing in app interface integration and authorization API connections. Our services cover protocol analysis, interface refactoring, Open Data integration, third-party service onboarding, and automated data scripts and API documentation delivery, with implementations for both Android and iOS platforms.

Compliance Notice: All work is conducted under client authorization or via publicly available/licensed interfaces, adhering to local regulations and privacy protection requirements. NDA can be signed if needed.

Core Capabilities

• Financial-grade security: HTTPS/TLS, OAuth 2.0, JWT, two-factor authentication, and hardening recommendations
• Authorization-based protocol analysis and compliant reverse engineering, along with Open Data integration
• One-stop delivery: runnable sample code, Postman collections, OpenAPI (Swagger) documents, and test scripts
• Cross-region adaptation: familiar with authentication and integration methods for major apps in Europe, India, Southeast Asia, and Malaysia
• Transparent pricing and fast delivery: starting at $300, with payment upon delivery/acceptance

Functional Implementations for Target Apps

The following are the interface implementation points and deliverables tailored to the target App names you provided. Each item will include runnable source code, API documentation, and test cases.

• tbi Romania: Implements account login and session management, account balance inquiry, installments/credit loan retrieval, installment repayment plans and push notification integration. Supports PSD2-style authorization flow and synchronized multi-approval records interface.
• BharatPe for Business [com.bharatpe.app]: Merchant acquiring and settlement interfaces: QR payment callbacks, settlement reconciliation, transaction history synchronization, merchant reports export and bulk settlement interfaces (including merchant KYC and order association fields). Supports UPI / QR payment event parsing and callback validation.
• Instant Approval Personal Loan [com.indialends.android]: End-to-end personal loan application flow: mapping of application form fields, uploading identity proofs and income documents, integration with credit bureau / scoring, real-time approval decision callbacks, disbursement and repayment plan APIs. Includes risk-control field documentation and mock approval scripts for local testing.
• Cairin: Pinjaman Uang Online [com.iss.client.cairin]: Indonesia-based online lending app integration: user registration and KYC verification, loan amount inquiry, repayment channel integration, local payment gateway integration (including channel callbacks and reconciliation), delinquency status notifications and installment detail synchronization.
• AFFINMAX Mobile App: Banking/wallet features for the Malaysian market: account inquiry, real-time transaction history, card management, e-bills, interbank transfers and local EFT integration. Deliverables include transaction signature verification and end-to-end encryption sample code.
• EvoWallet - Money Manager: Smart wallet and accounting app integration: multi-ledger and multi-currency support, expense category tagging, budget rule synchronization, import bank transaction details (OFX/CSV mapping) and report export interfaces, and standardized interfaces for integration with third-party financial services (e.g., accounting/tax).

Typical Deliverables

• Working sample code (Node.js / Python / Java) with documentation and integration guide
• Postman / Insomnia API collections, including authentication flows and example requests
• OpenAPI (Swagger) documentation for automated testing and backend integration
• API test scripts and mock data sets to support local/CI automated validation
• Security and compliance checklist (KYC, privacy, data minimization, etc.)

Delivery Timeline and Time Estimates

1. Requirements confirmation and scope definition (1-2 business days)
2. Protocol analysis and API design (2-5 business days, depending on complexity)
3. Development and internal validation (3-8 business days)
4. Delivery of documentation, samples, and test cases (1-2 business days)

Typical first delivery cycle is usually 5-15 business days; more complex integrations or scenarios requiring third-party approvals may take longer.

Pricing & Service Guarantee

• Base service starts at $300 (adjusted for complexity and compliance requirements)
• Delivery-first option; payment upon acceptance. NDA can be signed to protect data security
• Work is performed only with client authorization or based on publicly available/licensed APIs, strictly adhering to local laws and platform policies

FAQ

What information does the client need to provide?

Target app name, desired API functionality, whether official APIs or authorization credentials are available (provide if any), test accounts or sample data, and compliance constraints (NDA if required).

Do you support integration with local payment channels?

Yes. We have cross-region payment gateway and settlement integration experience, capable of handling channel callbacks, security validations, and reconciliation processes.

How do you ensure compliance and privacy?

We follow the principle of least privilege, conduct protocol analysis only on authorized data, provide privacy protection recommendations, and assist the client with compliance assessments.

Contact Us

For inquiries, quotes, or to submit your target app name and requirements, please click the button below to access the contact page:

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Service Tags

App API integration | Authorization API integration | Banking and lending apps | Merchant acquiring solutions | Wallet and accounting integrations | Open Data integration | API documentation delivery | Compliance-focused