NZenqPay

Non-custodial payment gateway

Accept USDT, USDC and Bitcoin.
Keep custody.

Every payment lands on a fresh one-time address and is forwarded to your wallet automatically. We never hold your funds, and we charge a flat fee per payment — never a percentage.

Create a merchant account Read the setup guide
  • 8 networks
  • From $0.10 per payment
  • 60 s to first invoice

How a payment flows

  1. 1

    Create an Express invoice

    One API call with an asset and a network. No amount required — customers can send any sum. You get a fresh address and a hosted checkout link.

  2. 2

    Customer pays

    The hosted checkout shows a QR code, a 60-minute countdown and live status. Our watchers see the transfer within seconds and wait for the network's confirmation threshold.

  3. 3

    Funds sweep to you

    The amount minus the flat fee is forwarded to your settlement wallet, and a signed webhook tells your system to release the order. Every movement is in your ledger with explorer links.

Networks

USDT and USDC on every EVM chain and Tron; native Bitcoin over bech32.

  • EthereumERC20
  • BNB Smart ChainBEP20
  • PolygonPOLYGON
  • Arbitrum OneARBITRUM
  • BaseBASE
  • OptimismOP
  • TronTRC20
  • BitcoinBTC

Priced like a utility

A flat fee per successful payment, deducted before the sweep. No percentages, no monthly minimums, no surprises when a customer pays a large invoice.

  • Enterprise — $0.10 per payment, $499.00 once
  • Pro — $0.25 per payment, $199.00 once
  • Basic — $0.50 per payment, free
Compare plans →
Create an invoice
curl -X POST https://zenqpay.com/v1/express/invoices \
  -H "X-Api-Key: ZQP-XXXXXX-XXXXXX-XXXXXX" \
  -H "X-Api-Secret: sk_..." \
  -H "Content-Type: application/json" \
  -d '{"asset": "USDT", "network": "TRC20"}'

Built for operators who read the code

Your keys, your server

Deposit addresses come from a BIP39 seed you control, encrypted at rest. Run the whole stack on a single VPS with Docker Compose.

Signed, idempotent webhooks

HMAC-SHA256 over the raw body, a stable delivery id, eight retries with backoff. The same invoice is never credited twice.

Embeddable checkout

One script tag opens the checkout in a locked modal on your page and hands you a paid event when it's done.

Start on testnet today

Create an account, generate an API key, and send test USDT to your first invoice.

Get started