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Buy with fiat

Buy crypto with a card, bank transfer, or Apple Pay without leaving the app. Funds land in your Interstate wallet directly.

Provider

Interstate uses Onramper — an aggregator that routes you to the best-priced fiat-on-ramp for your region and payment method. Onramper replaced the previous MoonPay integration.

Onramper itself is not the exchange — it picks between underlying providers (including Coinbase, Transak, and others) per order.

Where to find it

Header → Deposit → Buy tab.

The tab embeds the Onramper widget in an iframe. Your primary Solana wallet address is pre-filled as the destination — you don't paste it. After paying, the provider sends crypto straight to your Interstate wallet.

Payment methods

Varies by country. Typical options:

  • Credit and debit card (Visa, Mastercard)
  • Apple Pay / Google Pay
  • SEPA bank transfer (EU)
  • ACH / Wire (US, where supported)
  • Local bank rails in supported regions

Final availability is shown in the widget after you enter amount and country.

Coinbase $500/week no-KYC

One of the routed providers is Coinbase Onramp, which offers up to $500/week with no KYC for eligible users (US-heavy, subject to Coinbase's own checks). When Onramper routes your order through Coinbase, this applies — no document upload, no video verification.

Above the threshold, or for other providers, standard KYC (ID + selfie) is required.

The $500/week no-KYC allowance is set and enforced by Coinbase, not Interstate. Interstate cannot raise it or bypass it.

What you can buy

The Buy tab is Solana-side:

  • SOL — recommended; used for every Solana trade
  • USDC (Solana) — stable, useful for pre-funding before a volatile move

After purchase, if you ended up with a different asset than you want, use the Convert tab to swap in-app.

Monad / MON is not supported through the onramp yet. To get MON, buy SOL or USDC, bridge or swap externally, and deposit to your Monad address. See Deposits.

Fees

Two fee layers:

  1. Provider fee — charged by Coinbase / Transak / etc. Varies per method.
  2. Network fee — on-chain transfer fee from the provider to your wallet.

Both are shown in the widget before you confirm. Interstate does not add a fee on top.

Settlement time

MethodTypical
Card / Apple PayMinutes.
ACH / SEPA1–3 business days.
WireSame-day once received.

The widget shows a status screen. You can close it and come back — funds arrive in your Interstate wallet when the provider settles.

Troubleshooting

  • Card declined — your bank may block crypto merchants. Call the bank to authorize, or try a different card.
  • Region not supported — Onramper coverage is wide but not global. If your country isn't in the list, deposit from an exchange instead.
  • Order "pending" for hours — provider-side KYC review. Check the email the provider sent.

What to do next