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Payment infrastructure

Infrastructure for money in motion

Multi-currency wallets, a PCI-compliant gateway API, cross-border flows, and white-label custody. One integration, your brand on the front, regulated-grade controls underneath.

  • One Core

    Wallets and gateway on one ledger.

  • Your Brand

    White-label surface, deep controls.

  • API First

    Clean endpoints and robust sandboxes.

  • WalletsMulti-currency ledger
  • GatewayPCI-compliant acceptance
  • RoutingMethod, acquirer, corridor
  • CustodyWhite-label digital assets
  • RiskAI fraud prevention
  • ScreeningSanctions in-flow

Partners & infrastructure

Solutions

Four products.
One payment core.

Take the whole stack or the one piece you are missing. Every product runs on the same ledger, the same risk engine and the same API credentials, so adding a rail is a configuration, not a re-integration.

Wallets

Digital wallet infrastructure

Multi-currency wallets you can launch under your own brand, with balances, transfers and payouts on one ledger. Money arrives on any supported rail, converts when your customer asks, and leaves by the route that suits the destination.

Explore wallets
MULTI-CURRENCY€24,850EUR · Business wallet
ONLINE
EUR24,850.00
USD18,240.00
GBP9,110.00

Gateway

Secure payment gateway

A fast, PCI-compliant gateway with API-driven routing across methods, acquirers and channels.

Explore the gateway
PAYMENT
ROUTE
acquirer_a
acquirer_b
local_rail

Custody

BLK XGATE custody

White-label digital asset custody: branded wallets, crypto invoicing and full administrative oversight.

Explore XGATE
2 OF 3 SIGNED

Cross-border payments

Cross-border payments

Multi-currency transaction processing with compliance built into international flows from the first hop.

See cross-border
EUR
MXNSEPA / SPEI
GBP
BRLFPS / PIX
USD
INRSWIFT / UPI
EUR
USDSEPA / ACH

Product tour

Look inside the platform

One ledger, every currency

Open accounts, hold balances in several currencies, move value instantly between them and pay out to the rail your customer expects, all from one console and one API.

  • Accounts hierarchies for clients, sub-clients and internal float
  • FX quote, lock and convert between held currencies
  • Payouts bank transfer, card payout and crypto from the same balance
  • Audit every movement traceable, exportable and reconciled
Digital wallet in detail
WALLET CONSOLE
LIVE
CURRENCIESMultiTRANSFERSInstantLEDGERSingle
09:41:02wallet credit · EUR accountSETTLED09:41:04fx convert · EUR to USDLOCKED09:41:07internal transfer · client sub-accountPOSTED09:41:11payout instruction · SEPAQUEUED

Industries

Infrastructure shaped for your sector

Each sector arrives with different rails, different regulators and a different definition of risk. Open one to see the services we present for it, and the flows we run.

Security & compliance

Security and compliance in every transaction

Regulatory alignment sits at the core of every deployment: advanced encryption, AI-driven fraud prevention and real-time transaction monitoring, with controls your compliance team can evidence to a regulator.

  • End-to-end encryption

    Sensitive data protected from origin to destination, in transit and at rest.

  • Real-time fraud detection

    AI-driven monitoring that scores and stops fraudulent activity as it happens.

  • Secure authentication

    Biometrics, multi-factor authentication and step-up challenges on sensitive actions.

  • Regulatory alignment

    Controls, audit trails and reporting designed for regulated market entry.

Onboarding

From first call to first live transaction

Regulatory alignment sits at the core of every deployment: advanced encryption, AI-driven fraud prevention and real-time transaction monitoring, with controls your compliance team can evidence to a regulator.

ONBOARDING PIPELINE
TO DO
1
[04]Live and scalingWeek 4+
IN PROGRESS
1
[03]Sandbox buildWeeks 2–3
DONE
2
[01]Discovery callDay 1
[02]Solution designWeek 1
  1. Discovery call

    We map your current flows, volumes, markets and regulatory position, and say plainly what we would and would not change.

  2. Solution design

    You get a written architecture: products, rails, risk configuration and the integration scope against our API.

  3. Sandbox build

    Your engineers build against documented endpoints with our team on call. Test data, real edge cases, no surprises.

  4. Live and scaling

    Production launch with monitoring, reconciliation and a named contact who knows your account.

Clients

The businesses that run on BLK Tech

These companies move money on BLK Tech infrastructure: their brand and their customer relationship on the front, our ledger, rails and controls underneath.

FAQ

Common questions, answered

Payment infrastructure: multi-currency digital wallet technology, an API-driven PCI-compliant payment gateway, cross-border payment processing, AI-driven fraud prevention and risk intelligence, and BLK XGATE, a white-label digital asset custody platform. You can take one product or the whole stack on one integration.

Next step

Tell us how you move money today.
We will show you a better route.

Thirty minutes, a whiteboard and your real payment problem. You leave with an integration path, a risk view and a straight answer on timelines.