Polished iOS & Android apps
Reactive state, secure storage, real-time push, auto-logout for sensitive sessions. The full wallet + cards experience for your end users.
Platform
Cards are only one surface.
The product surfaces your customers, distributors and ops team need, plus the engineering primitives behind them — driven by one secure API.
Four surfaces, one API.
NAS is a gateway to a broader financial operating system: through regulated partners, the stack covers cards, wallets, accounts, payment rails and custody, plus the orchestration surfaces your customers, distributors and ops team need. Regulated services are provided by the partners; NAS is the operational layer that coordinates them.
Consumer web app
The same wallet, cards and transfers in the browser — with in-browser KYC OCR & MRZ extraction. For users who'd rather not install anything.
Business web portal
B2B onboarding & org management. Distributors, employees, per-employee permissions, manager → team hierarchy and card-request approval workflow.
Admin back-office
Role & privilege access control, settlement ledger, fee reconciliation, customer support depth, manual ops overrides and full content management.
Examples of what operators ship on the stack.
Both flows plug into the same wallet, the same card and the same ledger. They are illustrations, not the boundary of what you can build.
Crypto-to-Card Spending
Your users hold stablecoins and spend anywhere Visa or Mastercard is accepted — without leaving your brand.
- 01User holds USD, USDC or USDT in their wallet
- 02User orders a virtual or physical card
- 03User loads the card — FX handled in-platform
- 04Card spends at any Visa / MC merchant, in 140+ countries
- Multi-currency wallets in USD, USDT and USDC
- FX shown before confirmation; OTP confirms
- Card adoption among activated users
Cross-Border Transfers
Recipient typically spends from their card without a traditional bank account, subject to verification and per-programme limits.
- 01Sender funds wallet in USD, USDT or USDC
- 02Picks recipient by saved contact, phone or email
- 03Conversion typically applied immediately; FX shown before confirmation
- 04Recipient typically spends from their card subject to verification and limits
- Can be lower cost than traditional remittance (subject to corridor and programme)
- Card-first models can serve users without a traditional bank account — a globally significant segment (World Bank Global Findex, 2021)
- Same ledger, same compliance posture
Production-ready capabilities, already wired in.
Operational from day one. Sensitive card data never touches the NAS system.
Secure backend API
All card & wallet operations behind a single, signed, audit-logged API. Sensitive card data never touches the NAS system.
Multi-tier KYC & KYB
Hosted vendor flow (mobile) · in-browser OCR & MRZ extraction (web) · PEP declaration · provider-agnostic wire format.
Signed webhooks
Replay protection & audit log. Per-device session tracking, log masking, OTP everywhere, complete audit trail.
Custody & safeguarding
Client funds, where held, sit within the applicable programme structure — a regulated custodian, the program manager's banking partner, or NAS's own MPC-based custody infrastructure depending on the Program — segregated and reconciled continuously. NAS does not hold client funds as principal.
Program-manager access
Access to a network of Visa and Mastercard program managers and issuing institutions. NAS is not itself a Visa or Mastercard scheme member; network access runs through the program managers in the NAS network. Depending on the programme, the operator may sign directly with the program manager or with NAS.
White-label everything
Your brand theming applied to mobile, consumer web and business web. Staging environment provisioned for branding & QA.
Want a walk-through?
We share the architecture, the surfaces and a programme proposal after the first commercial discussion.