Kast Card in South Korea: paying in won, Apple Pay and real-time KRW cash-outs
Kast Card is available in South Korea. It works for people who hold stablecoins and spend in won: the balance stays in dollars, Apple Pay works for Korean residents, and won goes back to a Korean bank in real time for 1% plus $2.
Is KAST available in South Korea?
Yes. KAST is available in South Korea: residents can sign up, verify and use the card. KAST only refuses residents of sanctioned countries, and South Korea is not among them.
In Seoul, KAST had a booth and a VIP party at Korea Blockchain Week 2025, and for KBW 2026 it ran a pickleball day, a Pengu Card Party with Pudgy Penguins and a CEO panel. The supported countries page has the full list.
How to sign up for KAST from South Korea
Signing up for KAST from South Korea takes a few minutes when the ID check goes through automatically.
- Install the app through app.kast.xyz/
referral/ and create an account with your email, Google, Apple or phone number.6MHGEMGE - Choose South Korea as your country of residence.
- Scan your ID card, driver's licence or passport and take a live selfie.
- Wait for the check. Most clear in 5 to 15 minutes; a manual review takes 1 to 3 business days.
The app isn't in Korean yet. It runs in English, Spanish, Portuguese, Turkish, Chinese and Arabic. Every screen of the sign-up is on our Kast Card sign up page.
What paying in won costs
Paying in won with a KAST card costs an FX fee of 0.5% to 1.75%. Your balance is held in US dollars, so each KRW purchase is converted at checkout, and the app shows the fee before you confirm. Non-USD purchases under $25 may add $0.10.
On a 50,000 KRW dinner that comes to roughly 20 to 65 cents of fee. Anything priced in US dollars, which includes a lot of flights and online services, carries no FX fee at all.
Does Apple Pay work with KAST in South Korea?
Yes. Apple Pay works with KAST cards for residents of South Korea. KAST decides Apple Pay access by the country of residence on your account, and South Korea is on its list, so you can add the card to Apple Wallet and tap to pay wherever contactless Visa is accepted.
If your account lists a different country of residence, availability follows that country instead, wherever you happen to be.
How to top up KAST in South Korea
You top up KAST in South Korea by sending stablecoins to your KAST deposit address. USDT and USDC both work, and KAST charges nothing on stablecoin deposits; you only pay the network fee.
Solana is usually the fastest and cheapest route, with deposits landing in under a minute. Our Kast Solana Card page walks through sending from Phantom. Other coins such as BTC or ETH also work, but KAST converts them for a fee of roughly 2% to 5%.
Cashing out to a Korean bank in KRW
Cashing out to a Korean bank with KAST costs a 1% FX fee plus a $2 transfer fee. In KAST Pay, choose Fast Payout, pick KRW, accept the partner's terms the first time, then send to your own account or someone else's. The money goes over Korea's KFTC/FirmBanking network in real time.
The minimum is 5,000 KRW and the maximum 999,999,999 KRW. Your first three payouts are free, and so is any payout above $5,000. The app may ask for a tax ID, proof of address or source of funds before the first one. Our Kast Card fees page compares every payout currency.
KAST at Korea Blockchain Week
KAST shows up in Seoul every Korea Blockchain Week. In 2025 it ran a booth where people could sign up on the spot and hosted a VIP party at the Mondrian. Its Seoul post that week showed the card covering a flight, Olive Young and Gentle Monster.
In 2026 the programme grew: a pickleball day with Pudgy Penguins on 29 September, a Pengu Card Party at Glam Lounge on 30 September, and founder and CEO Raagulan Pathy on stage on 1 October.
Using the KAST card at ATMs in South Korea
A KAST ATM withdrawal in South Korea costs $3 plus 2% of the amount, and the FX fee applies on top because the cash comes out in won. Each withdrawal is capped at $250, with up to 3 withdrawals or $750 per 24 hours, and the ATM operator may add its own fee.
For larger amounts, a payout to your bank is cheaper and arrives in real time.
Is KAST worth it in South Korea?
KAST is worth it in South Korea if you hold savings in dollars or stablecoins and want to spend them like won. Top-ups are free, card payments in KRW cost at most 1.75%, Apple Pay works, and won payouts land in real time for 1% plus $2.
The gaps are the language, since the app isn't in Korean yet, and cash, because ATM fees add up. Unless you spend a lot each month, the free Standard card is the one to get; Premium and Private only pay back at high spend.
Kast Card South Korea referral code: 6MHGEMGE
The Kast Card referral code for South Korea is 6MHGEMGE. Sign up with it and you get $20 after your first $100 of card spend, plus 10% off your first paid membership. Amounts can vary by country and campaign, and the Rewards tab shows what is live for you.
How the code works, and how to add it after signing up, is covered on our KAST referral code page.
Information only, not financial advice. This site is independent and not operated by KAST. Sources: KAST Concierge (KRW payouts, fees, Apple Pay) and KAST's posts on X, checked Oct 2026. Images: KAST on X.
