Accept SPL stablecoins on Solana with Paymos

Why Solana for crypto payments

Accept Solana when your buyers already pay in SPL stablecoins. The chain sustains a few thousand real transactions a second and clears most transfers for a fraction of a cent , so a retail payment costs the buyer almost nothing to send. Its user base concentrates in three places: high-frequency DeFi (Jupiter, Kamino, Drift), consumer wallets (Phantom, Backpack), and an active retail-trader crowd.

That mix makes Solana the rail to enable when your audience overlaps with consumer crypto-pay users, Solana-native traders, or the Phantom demographic. Scan-to-pay, mobile-first checkout — the Solana Pay pattern — is native here, so a QR-and-wallet flow feels normal to the buyer.

Supported stablecoins on Solana

Paymos accepts three SPL stablecoins on Solana: USDT, USDC, and USD1. The third is the World Liberty Financial dollar, which launched on Ethereum and BNB in March 2025 and reached Solana later that year as a 100M-token SPL mint . All three settle at 6 decimals; the panel above shows the live set. DAI and XAUT are not issued on Solana and are not accepted — point a buyer holding either to a chain where the token is canonical, such as Ethereum.

How confirmations work on Solana

Solana exposes a finalized commitment level — the point past which the network treats a block as settled. Paymos credits a Solana payment once it reaches a safe confirmation state, which on a chain this quick takes seconds for a retail transfer. Here that depth is one operational setting, the same for a $5 sale and a five-figure one — not a count that climbs with the invoice and not a figure we pin into copy. Watch each payment move through its states live in the dashboard.

Fees and gas

The buyer pays the network fee in SOL. A typical SPL stablecoin transfer currently costs a fraction of a cent — well under $0.01. Solana's priority-fee mechanism can nudge that higher under peak load, yet it stays among the cheapest acceptance rails on Paymos for ordinary retail. A wallet holding USDC but no SOL still can't broadcast — it needs a little SOL for the fee.

Paymos pricing on Solana: 1.0% Standard, 0.3% Enterprise on request, with acceptance and sweep gas folded into that fee and no surcharge. Withdrawals carry no Paymos commission: when you send USDT or USDC to a whitelisted wallet, the network fee you pay is set below Solana's real cost and we absorb the gap, so a payout runs you less than the chain would. Not free — a reduced network fee applies — but the 1.0% never lands twice.

Compared to a typical crypto gateway

Bolt Solana onto an EVM playbook and you inherit its worst habits: a fixed block count for every payment and one pooled deposit address keyed by a memo the buyer can forget. Paymos drops both. It reads Solana on the chain's own finalized commitment, and every invoice gets its own BIP-44-derived Solana account — a payment lands where it belongs, no tag to type. Webhooks carry the X-Webhook-Signature: t={timestamp},v1={hmac_hex} header and retry up to 11 times over roughly 32 hours until your endpoint answers; because you stamp each invoice with an external_order_id, a replayed callback resolves to the original order, never a duplicate. Solana Pay-style scan-to-pay rides the same REST surface as every other chain — nothing Solana-specific to integrate.

What we don't do on Solana

We accept USDT, USDC, and USD1 on Solana — no DAI, no XAUT, since neither is issued here. Whichever of the three a buyer sends, your balance holds that exact SPL token: Paymos won't swap it to another coin or to fiat, and there is no bank off-ramp built into the platform. Refunds are merchant-initiated — you push the funds back out yourself, since buyers get no self-service refund screen. We never key a payment to a memo or instruction field, so there's no tag a buyer can omit and lose money over. And the buyer's inbound SOL gas is on the sender, never on you.

Frequently asked questions

What's an SPL token?

SPL is Solana's standard token program — the equivalent of ERC-20 on Ethereum. The three stablecoins Paymos accepts here — USDT, USDC, and USD1 — are all SPL tokens. A wallet supporting SPL can hold any of them.

Why is Solana so cheap?

High throughput and a fast block time spread network costs across far more transactions, so the per-transfer fee lands in fractions of a cent . The trade-off is heavier validator hardware and more protocol complexity than a slower chain carries — a chain-engineering concern, not something a merchant accepting a payment ever touches.

Can a customer pay me from Coinbase to Solana?

Yes. Coinbase supports USDC and USDT withdrawals to Solana. The customer picks Solana on withdrawal; funds arrive at your Paymos deposit address.

What gas token does Solana use?

SOL. A customer paying USDC on Solana needs a small SOL balance — typically a few cents' worth — for the network fee.

Has Solana ever had a chain outage?

Yes. Solana took several multi-hour halts in 2021–2022 — a 17-hour stoppage in September 2021 and an 8-hour one in September 2022 among them — mostly driven by transaction floods the network couldn't filter from genuine traffic. The last major incident was a roughly five-hour halt on 6 February 2024, fixed by a coordinated validator restart. Stability has improved since, through fee-market changes and client work (Agave, Firedancer). When slots stop advancing, the Paymos Solana scanner pauses at the last finalized slot rather than reading a payment off a stalled chain, and resumes from there once block production recovers.

Should I accept Solana if I'm not specifically targeting crypto-pay users?

It's worth enabling. Phantom and Backpack put SPL stablecoins in front of a broad consumer wallet base, and turning the chain on adds no fixed cost — you still pay 1.0% only on a settled invoice. Buyers who hold on Solana self-select; the rest pick another network at checkout.