Curve Pay / Curve-style Wallet — Integration & OpenFinance API Delivery

Protocol analysis • tokenized card aggregation • contactless payments • OpenData / OpenFinance-ready API delivery

Service from $300 — pay after preview
OpenFinance · OpenData · App Protocol Analysis · Contactless Payments

Integrate Curve-style wallet features into your platform — fast, compliant, production-ready

We convert mobile wallet features (multi-card aggregation, virtual travel card, FX/cashback rules, Go Back In Time®-style routing) into documented, testable APIs and reference SDKs so your product can accept payments, route charges, and manage customer balances securely.

Typical integration scope

  • Protocol analysis & authorized API mapping for Curve-like wallet flows
  • Tokenized card orchestration & virtual card lifecycle management
  • Contactless & mobile-payments support (Apple Pay / Google Pay / tokenized payments)
  • Cashback / FX rules, spend routing, and reconciliation APIs
  • OpenAPI (Swagger) spec, sandbox & SDKs (Node.js / Python / Go)

What we deliver

  • OpenAPI specification & mock server
  • Production-ready API implementation (Node.js or Python) with examples
  • OAuth2 / token management & recommended security posture
  • Automated test scripts and Postman collection
  • Interface documentation, deployment and monitoring notes

Integration highlights

  • Card linking and virtual card issuance flow (tokenized)
  • Payment routing engine + spend rules (cashback, priority card)
  • Statement & reconciliation API (CSV / JSON / Excel export)
  • GDPR / PCI-DSS compliance guidance and data minimization plan
Contact & brief See deliverables

Deliverables & Example APIs

Standard deliverables

  • OpenAPI (Swagger) contract
  • Implementation example (Node.js / Express or Python / FastAPI)
  • SDK for backend usage (Node & Python)
  • Integration & test plan, Postman collection
  • Security & compliance checklist (PCI/GDPR notes)

Sample endpoint: virtual card mint

POST /api/v1/wallets/{wallet_id}/virtual-cards
Content-Type: application/json
Authorization: Bearer <SERVICE_TOKEN>

{
  'card_label': 'Travel USD',
  'currency': 'USD',
  'limit': 2000.00,
  'expiry_days': 365
}

Response: 201 Created
{
  'virtual_card_id': 'vc_01F3X...'
}

Sample endpoint: route payment

POST /api/v1/payments/route
{
  'amount': 150.00,
  'currency': 'GBP',
  'merchant_id': 'm_9876',
  'user_profile': { 'preferred_card_order': ['card_1','card_2'] }
}

Response: { 'route': 'card_2', 'estimated_fee': 0.99 }

Core benefits of our approach

  • Speed: sandbox and working demo in 5–12 business days for standard scopes
  • Compliance-first: APIs designed to minimize sensitive data handling
  • Global-ready: support for tokenized payments, multi-currency and routing rules
  • Production support: deployable artifacts + runbook + test automation

Who should hire us?

Fintechs, banks, PSPs and marketplaces who need to add a Curve-style single-card user experience, multi-card routing, virtual cards or cross-border spend management to their product quickly and in a compliant manner.

API Integration Instructions (how to start)

  1. Provide the target App package or product name (you already did — e.g. Curve Pay) and a short list of required capabilities (login, virtual cards, reconciliation, refund workflow).
  2. Confirm you have authorization to integrate (one of: partner API keys, developer portal access, or explicit consent from the App owner). We will only work with authorized or public data sources.
  3. Decide target deliverable: OpenAPI + SDK, or full backend connector + deployment scripts.
  4. We perform protocol analysis from public SDKs, partner docs or authorized API access. For closed-source apps we perform authorized reverse engineering and traffic analysis only when you hold legal permission; otherwise we implement feature parity via public/open banking connectors and tokenization services.
  5. Delivery options: sandbox demo → sample production deployment → optional maintenance SLA.

Important: We do not perform or assist with unauthorized access. All analysis and integrations are performed under client-provided authorization or against public/open APIs and compliant OpenBank/OpenData feeds.

About our studio

We are a technical service studio specializing in app interface integration and authorized API integration. Our team combines mobile app protocol analysis, OpenData/OpenFinance integration, and turnkey API source-code delivery. Core services include protocol analysis, interface refactoring, Open Banking adapters, third-party interface implementation and automated test scripts — delivered with security and compliance in mind.

  • Senior engineers with fintech, banking, and mobile app experience
  • Cross-platform deliverables (Node / Python / Go, Android & iOS SDK examples)
  • Transparent pricing — start at $300 with a results-preview option

Contact & Next Steps

To get started, click the button below and provide:

  • Target App package name (already provided: com.imaginecurve.curve.prd)
  • One-line list of required endpoints (e.g., link card, create virtual card, route payment, statement)
  • Authorized API access / partner credentials or confirmation of public API usage

Open contact form

📱 Original App — Curve (Curve Pay) — full description (collapsed)

Curve Pay / Curve is a digital wallet and payment app that consolidates multiple debit and credit cards into a single travel & spend card, integrates with mobile wallets (Google Pay / Apple Pay), supports virtual card issuance, provides multi-currency FX and global cashback, and offers features such as Go Back In Time® card switching and spend routing. Key features include combining cards, tap-to-pay integration, free and premium plans with different ATM and FX allowances, instant refunds and routing, and customizable rules for selecting which underlying card to charge.

  • One travel card that combines multiple debit & credit cards
  • Digital wallet & tokenization: Apple Pay / Google Pay support
  • Multi-currency transactions, FX handling and fee control
  • Subscription tiers (Free / Pro / Pro+ with varying limits & perks)
  • Features: Go Back In Time (switch payment between cards), Smart Rules, cashback, ATM withdrawal allowances

This description is used to define integration targets and is included here as a reference for the API deliverable.