At a glance
Sui on Paymos
Supported assets
- USDC USD Coin
Confirmation speed
Confirmation depth is network-specific — Paymos tunes it to each chain's finality and shows thresholds where they apply.
Paymos accepts USDC on Sui. The invoice is denominated in USDC, the SUI token exists in this flow only to get the transfer signed and sent, and the confirmed amount reaches the merchant's USDC balance without a forced conversion or a markup hidden in a rate.
What Paymos accepts on Sui
USDC is the payment asset on Sui, and the only one. USDT, USD1, DAI and XAUT are not part of the Sui catalog.
SUI is a gas token in this flow and nothing more. A payer needs enough of it for the network to accept the transaction, and not one unit of it counts toward the amount owed. A Sui invoice is closed by USDC that crossed Sui — the same ticker on Base, Ethereum or Polygon is a different transfer.
How a Sui USDC payment works
- The merchant creates an invoice through checkout, Payment Links, POS, a CMS plugin, Low-Code SDK, or REST API.
- The customer selects USDC on Sui.
- Paymos assigns a dedicated deterministic address.
- The customer sends the exact displayed amount over Sui.
- Paymos detects the transaction and holds it until the payment counts as confirmed.
- Confirmed funds are credited to the merchant's USDC balance.
HMAC-SHA256-signed webhooks carry the status change to the merchant application, so nobody has to run a Sui scanner to know an order is payable.
Sui payments carry no promised clearing time
Nothing here commits Paymos to a number of seconds, and a page that quoted one would be quoting the chain's mood rather than a product guarantee. Watch the invoice status instead.
Release goods on the Paymos invoice status. A wallet broadcast records that a transaction was sent, and current chain conditions decide how long the rest takes.
SUI gas and Paymos fees
The Sui network fee is paid in SUI, by the payer's wallet, to the network. It changes with conditions on the chain, so no fixed transfer cost is promised here — and a wallet holding only USDC will not be able to send it.
Paymos covers the network cost of accepting and consolidating the payment. Standard pricing is 1.0% per settled invoice; Enterprise is 0.3% on request. There is no setup fee, monthly fee, minimum volume, reserve, rolling reserve, or charge for unpaid, expired or cancelled invoices.
Settlement stays in USDC
USDC received on Sui is credited as USDC — no automatic exchange into another stablecoin or into fiat, and no charge concealed inside a rate.
Balances are held per asset, not per network, so Sui receipts add to the same USDC total as Base, Ethereum and the rest. At withdrawal, the merchant chooses an available payout network and a whitelisted destination.
Sui is an acceptance network only. A Sui address cannot go on the payout whitelist, so USDC taken here leaves on one of the eleven networks that do accept a destination — the money is not tied to the chain it arrived on.
Paymos adds no processing commission to withdrawals. A network fee can apply, depending on the payout network, and it is billed under what that route costs.
When to enable Sui
Enable Sui when customers already hold USDC there and keep a little SUI for the fee. It appears beside the other supported networks in the same Paymos integration.
Do not route a customer by ticker or by a generic fee claim. Ask which network holds their USDC, then show that network — a payer with USDC on Sui and no SUI at all is still stuck.
Integration and custody controls
Hosted Checkout, Embedded Checkout, Payment Links and Low-Code SDK show the asset, network, amount, address and QR data. H2H REST API, POS and official CMS plugins support other merchant workflows.
Outgoing transactions are signed on isolated infrastructure. Withdrawal whitelisting separately restricts payout destinations.
Frequently asked questions
Which stablecoin can Paymos accept on Sui?
USDC. It is the only payment asset in the Sui catalog.
Can USDC from Base pay a Sui invoice?
No. The invoice names Sui, and only a transfer that crossed Sui closes it.
Does the customer need SUI?
Enough to pay the network fee, yes. None of it is credited to the invoice, and it is not deducted from what the merchant receives.
How long does a Sui payment take?
None is published, because the chain decides it and we do not. The invoice flipping to paid is the event to act on.
Does Paymos convert Sui USDC?
No. The payment is credited to the merchant's USDC balance.
How do I enable Sui payments?
Enable USDC on Sui in your integration. Compare the supported networks or review the USDC payment gateway.