Crypto payment gateway

Accept crypto for digital content, credited safely.

One integration connects your store to licensed cryptocurrency payment providers. Quazko verifies every settlement and credits your players exactly once โ€” with a full audit trail behind it.

Licensed EU providersNon-custodialLive in a day
Accepted through our providers
BBitcoin EEthereum TTether USDT UUSD Coin BBNB LLitecoin XXRP TTron SSolana PPolygon ACardano TTON DDogecoin AAvalanche DDai VVisa ยท card MMastercard ยท card +60+ more assets BBitcoin EEthereum TTether USDT UUSD Coin BBNB LLitecoin XXRP TTron SSolana PPolygon ACardano TTON DDogecoin AAvalanche DDai VVisa ยท card MMastercard ยท card +60+ more assets
The flow

Every payment travels the same safe path.

From the buyer's click to a credited account โ€” each step is verified before the next.

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Checkout

Buyer picks an amount and method on your store.

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Provider pays

Licensed provider processes the crypto payment.

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Quazko verifies

Signature + amount cross-checked before anything moves.

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You're notified

One signed webhook to your server, retried until acked.

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Account credited

Exactly once โ€” repeats are ignored by design.

Why Quazko

Built for stores that credit real accounts with real value.

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Verified settlement

A payment counts only when the provider's signed confirmation is verified and cross-checked against the provider's own records. A redirect never moves money.

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Exactly-once crediting

Retries, replays and duplicate confirmations are expected and handled. Your player is credited once โ€” even if the same event arrives five times.

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Complete audit trail

Every payment's full history is permanently recorded โ€” who paid, what was credited, when, and on which confirmation.

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Secure by default

Provider credentials are stored encrypted. Card data never touches Quazko โ€” buyers pay on the pages of licensed providers.

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Delivery you can trust

Crediting notifications are signed and retried until your server confirms receipt. Your downtime delays a credit โ€” it never loses one.

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One simple integration

A redirect link for your payment page and one webhook endpoint on your server. Most merchants are live within a day.

Trusted by design

Money safety enforced by the database,
not by good intentions.

70+
cryptocurrencies accepted
3ร—
layers of idempotency
100%
signature-verified callbacks
0
floats โ€” integer minor units only
UNIQUE (provider, event)

A replayed confirmation can never credit twice. Deduplication happens at the database layer, so even two simultaneous callbacks resolve to exactly one credit.

UPDATE โ€ฆ WHERE status = expected

Illegal state transitions are impossible. A refunded payment can never quietly return to paid, no matter the race.

amount == our_record.amount

The callback's amount is never trusted. Every confirmation is cross-checked against our own stored amount and currency before anything moves.

Who it's for

Made for businesses that sell digital value.

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Game servers

Premium access and in-game benefits credited to player accounts โ€” instantly and exactly once.

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Digital goods

Keys, downloads, top-ups and vouchers with automated delivery on verified payment.

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Subscriptions & SaaS

Recurring digital services with a clean payment trail for every renewal.

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Creators & communities

Memberships, supporter perks and paid communities without payment headaches.

Pricing

Simple pricing. No surprises.

No setup fee. No monthly fee. You pay per successful transaction โ€” the exact rate is fixed in writing before activation.

Sandbox

Free
  • Full test environment
  • Reference receiver included
  • Unlimited test payments
  • Integration support

Crypto payments

from 1% / transaction
  • 70+ cryptocurrencies
  • Stablecoin settlement
  • Verified crediting & audit trail
  • Signed merchant notifications

Volume & custom

Custom
  • Negotiated rates at volume
  • Multiple projects per merchant
  • Priority support
  • Dedicated onboarding

Final per-transaction rate depends on the payment method and processing provider and is confirmed during onboarding. Blockchain network fees are passed through at cost. No hidden charges.

FAQ

Frequently asked questions.

What exactly is Quazko?
A payment technology platform. We connect your store to licensed cryptocurrency payment providers, verify every settlement and notify your system when it is safe to credit the buyer. We are not a bank and never hold buyer funds.
Who actually processes the payments?
Licensed third-party payment providers (including MiCA-regulated EU companies). Buyers pay on the provider's checkout; card and wallet data never touches Quazko.
Which cryptocurrencies can buyers use?
70+ assets through our providers โ€” BTC, ETH, USDT, USDC, LTC, XRP, TRX, SOL and more. You receive settlement in stablecoins regardless of what the buyer paid with.
What does it cost?
No setup or monthly fees. A per-transaction fee from 1%, fixed in writing before you go live. Network fees are passed through at cost.
How fast is crediting?
Your server is notified the moment the provider's confirmation is verified โ€” typically within seconds to a few minutes of blockchain confirmation, depending on the asset.
What if the same payment is reported twice?
Nothing happens twice. Deduplication is enforced at the database level โ€” replays and retries are acknowledged without a second credit.
How do refunds work?
Refund eligibility is defined by your own policy towards your buyers. Where you approve one, we coordinate the technical reversal with the provider. See our Refund Policy.
How do I start?
Write to support@quazko.com or create an account. You get a sandbox the same day and can test the complete flow before signing anything.

Ready to accept payments the safe way?

Create an account, get a sandbox, and test the full flow with your own store today.

Get started