App Interface Connection and API Integration Services

Who We Are

We are a technical services team specializing in app interface integration and authorized API integration, skilled at analyzing data exchange protocols for Android and iOS, implementing authentication workflows, and integrating third-party interfaces. Our services target financial, payments, e-commerce, and budgeting apps, with an emphasis on compliance and privacy protection.

Compliance Commitment: We operate only under client authorization or based on publicly available / authorized APIs, adhering to local laws and data protection requirements (such as GDPR, PDPA, etc.).

Core Capabilities

Account & Identity Authentication: OAuth2, JWT, two-factor authentication, multi-signature and biometric access solutions.
Payments & Wallets: QR/Code payments, NFC, cross-bank transfers, and settlement integrations.
Transactions & Billing: Standardized transaction details, reconciliation flows, bill generation and notification callbacks.
Security & Compliance: HTTPS/TLS, data masking, rate limiting and audit log support.
Delivery Tools: OpenAPI/Swagger documentation, Postman collections, sample code (Node.js/Python/Java) and automated test scripts.

Target App Functionality Implementation Examples

Based on the target app names you provide, we will formulate actionable API implementation plans for each app and deliver sample code and documentation. Below are the implementation highlights for this target list:

First Security Mobile: Enterprise/retail banking client API implementation, including multi-factor login, account and sub-account balances, date-grouped transaction details API, custody/term product queries, real-time transaction notifications (webhooks) and export of reconciliation CSV functionality.
Wangdao e動網: Digital banking integration solution for the Taiwan market, including OAuth2 authorization flow, savings/current balance APIs, interbank transfers (with external bank integration), electronic statement downloads, and integration examples with local payment gateways (electronic payments / barcode payments).
Convdesc: Interfaces for transaction description and accounting aggregation services; supports transaction note parsing, merchant category (MCC) field mapping, classification rules engine, and transforming transactions into standardized descriptions suitable for budgeting or accounting systems.
MOVii [com.movilred.subscriber]: Digital wallet and prepaid card scenarios, including user registration and KYC verification, wallet balance and top-up APIs, P2P transfers, QR payments and transaction callback management. We also provide sandbox and transaction replay tools for QA validation.
BinDowal Pay: Merchant acquiring and consumer wallet integration, offering acquiring APIs (payment requests, refunds, settlement batches), embedded fraud rules, and POS and mobile QR payment access references with examples for connecting to third-party clearing platforms.
Budgetiz: Backend APIs for personal/business budgeting and expense management, including account aggregation (multi-bank/multi-wallet sync), automatic categorization and budgeting rules engine, periodic reports API, and export/Webhook support for accounting tools.

Typical Deliverables

Working API sample code (Node.js / Python / Java), including authentication middleware and error handling.
Complete OpenAPI/Swagger specifications and Postman collections.
API authentication and rate-limiting strategy documentation (examples: OAuth2, API keys, IP allowlists, throttling rules).
Security and compliance briefings (data masking, log retention policies, NDA templates optional).
Automation test scripts and end-to-end test plans, including sandbox data and replay scripts.

Project Process & Timeline

Requirements confirmation: clients provide target app name and API requirements.
Protocol analysis: map out authorized APIs / Open Data, necessary reverse engineering where allowed, and API standardization (within the authorized scope).
Development and delivery: implement authentication, core APIs, test scripts, and documentation.
Validation and deployment: assist integration testing, performance tuning, and production release support.

Typical projects: first version delivered in 5-10 working days; more complex cross-bank/clearing integrations may require longer depending on scope.

Pricing & Guarantee

Starting at $300 (includes requirements confirmation and rapid prototyping); supports a pay-after-delivery of samples option.
We work only with client-authorized data and public/authorized interfaces, and NDA can be signed.

FAQ

1) What information does the client need to provide?

Target app name, authorization credentials / test accounts (if any), and a list of desired interface functions and compliance requirements.

2) Can the delivered interfaces be used directly on mobile?

Yes. We deliver runnable samples, SDK-level wrappers, and integration documentation for mobile use.

3) How is data security ensured?

We employ industry-standard encryption and authentication strategies, provide least-privilege configuration and audit log recommendations, and, if needed, support code reviews and penetration testing (additional quotes apply).

Contact Us

To submit target app names and integration requirements, or to request a tailored solution, please visit the contact page below:

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