Invoices
Create a payment request with an amount, currency, reference and expiration.
Crypto payment gateway
Accept crypto payments with one checkout.
Create invoices, share a hosted payment page and receive signed status updates from one merchant API.
Payment routes appear only after merchant wallet and watcher readiness checks.
Hosted checkout
Preview
MerchantYour business
Awaiting invoice
Amount to paySet by invoice
Payment method
Asset and network selected from ready routes
Live payment statusDetection and confirmations update this checkout.
Hosted checkout
Send buyers to a focused payment page with the exact route and live status.
Payment links
Reuse a merchant-owned link to create checkout sessions from one payment setup.
Webhooks
Receive signed status events with persisted delivery attempts and retries.
Choose the payment flow
Start with an invoice or reuse a payment link.
Both flows use the same checkout, payment state and webhook delivery pipeline. The merchant controls the order reference, expiration and callback behavior.
Read the integration guideInvoice
One payment request for a specific order and amount.
Create through the merchant APIPayment link
A reusable entry point that creates a new hosted invoice.
Manage from the merchant dashboardStatic receiving route
A merchant-owned address assignment for supported wallet flows.
Available only with configured inventoryAssets and networks
Configure the routes your business can operate.
Catalog coverage is not a live-rail claim. Checkout exposes only routes that pass wallet, pricing and detection readiness.
Bitcoin
BTC on-chain and provider-gated Lightning
Litecoin
Native LTC settlement route
Stablecoins
USDT and USDC on configured networks
EVM networks
Ethereum, BNB Smart Chain, Polygon and compatible adapters
Tron
TRX and TRC20 token routes
Solana
SOL and supported token routes
Fees and totals
Show the amount before anyone pays.
The hosted checkout exposes the quote returned for that invoice. Rules, route and payment mode remain merchant-specific.
Gateway fee
The amount is calculated from the fee rule configured for the merchant and invoice. ZemiaxPay does not publish a universal percentage that may not apply to your account.
Exact payer total
Hosted crypto invoices default to a net target: the checkout shows the exact amount to send, the gateway fee and the merchant amount before payment.
Network fee
The sending wallet pays the blockchain network fee. ZemiaxPay keeps that cost separate and never guesses it inside the merchant amount.
Merchant API
One request creates the payment flow.
Authenticate with a scoped key, use an idempotency key for writes and verify every webhook before fulfilment.
Create invoice
POST
/api/v1/crypto/invoicesAUTH
x-api-key: merchant_keySAFE
Idempotency-Key: unique_request_keyEVENT
Verify HMAC before fulfilmentSecurity
Protect access, payment state and delivery.
Security controls are part of the payment flow, not optional dashboard decoration.
Scoped access
Merchant keys are hashed at rest, revealed once and limited by explicit scopes.
Verified events
Webhook signatures, timestamps and delivery identifiers support replay-safe fulfilment.
Auditable payment state
Invoice, payment, confirmation and ledger records remain separate and traceable.
FAQ
Before accepting your first payment.
Availability, custody and payout authority depend on the routes and providers configured for each merchant.
Does the buyer need a ZemiaxPay account?
No. A buyer can open the hosted checkout and pay the route assigned to the invoice.
Which cryptocurrencies can a merchant accept?
The catalog covers multiple assets and networks. A route appears at checkout only after that merchant has a ready wallet, pricing source and watcher or provider.
Where do received funds go?
The destination depends on the configured receiving route. ZemiaxPay can monitor an external wallet while recording the payment and ledger facts.
Are payouts automatic?
Payout planning and approvals are available, but broadcast remains disabled until a real signer or provider is configured and verified.
Merchant checkout