Powered by HashKey Custody · SOC2-grade audit log · 99.9% uptime target
One gateway, every integration path
From a hosted page you can drop in today to a fully programmatic API — pick the surface that matches your stack.
Hosted Checkout
A branded payment page with QR, live confirmations and expiry countdown. No frontend work required.
Programmatic API
Create orders, watch status via SSE, and subscribe to signed webhooks. HMAC-SHA256 auth with replay protection.
Custody-backed Settlement
Funds flow through HashKey Custody with double-entry ledger, confirmation gating and automated withdrawals.
From signup to settlement in four steps
Stablecoin acquiring, built for developers
Register
Create an account, complete KYB, receive API keys and a webhook secret.
Create order
POST one JSON body to /v1/orders. Get back a checkout URL and deposit address.
Customer pays on-chain
Buyer sends USDT or USDC. We watch the chain, require confirmations, and flip the order to PAID.
Settled to your balance
Net credit lands in your available balance. Withdraw on demand or keep earning.
Why merchants pick mp_merchant
Traditional card processor
mp_merchant
DIY on-chain
Settlement time
T+2 to T+7 business days
Minutes after on-chain confirmation
—You build the indexer
Chargeback risk
Up to 18 months exposure
Immutable on-chain settlement
—None, but no dispute path
Global availability
Blocked in many corridors
Anywhere the chain is reachable
—Manual per-chain integration
Engineering effort
Card form + PCI scope
One API + signed webhooks
—Node ops + reorgs + custody