Kast is a stablecoin payment app that connects blockchain deposits with Visa cards. The service issues virtual and physical cards so a balance can be spent at merchants without a separate manual off-ramp for each purchase. In product terms it functions as a stablecoin neobank focused on dollar card access.
Kast operates as a custodial wallet application paired with payment processors. Supported stablecoin deposits are shown in USD and converted at a 1:1 rate with a 0% spread, according to the fee article updated on October 12, 2026. Revenue comes from membership fees on Premium and Private, FX and ATM charges, and card economics.
How is Kast structured as a stablecoin platform?
Kast is a custodial digital wallet that bridges multi-chain deposits to Visa authorization. It is not a licensed retail bank and does not offer government-insured checking deposits. The platform holds deposit balances and handles compliance under applicable money-services frameworks.
Deposit networks named on the October 12, 2026 fee article include Solana, Arbitrum, Ethereum, and Tron. USDT and USDC are the named stablecoins on those withdrawal routes. A non-stablecoin deposit can be auto-converted, with the conversion fee shown before confirmation.
Virtual USD account details can receive ACH, Fedwire, and SWIFT. The same article lists a $2 ACH fee, a $15 Fedwire fee, and a $30 SWIFT fee. Incoming USD is reflected on the spendable balance after the rail settles.
How do the Kast Visa cards and banking features function?
Kast provisions a virtual card after KYC and ships physical cards by tier. Virtual cards can be added to Apple Pay or Google Pay where those wallets allow it. The cards page describes acceptance at merchants in 170+ countries.
As of the fee article updated October 12, 2026, published tier economics are:
| Membership tier | Annual fee | USD cashback on eligible spend | Card notes |
|---|---|---|---|
| Standard | $0 | 1.5% on the first $2,000/month | Visa Platinum plastic. Physical card fee $0 plus $40 delivery |
| Premium | $1,000 per year | 2% on the first $10,000/month | Visa Infinite metal, plus 1% in KAST Points |
| Private | $10,000 per year | 3% on the first $40,000/month | Visa Infinite gold plate, plus 2% in KAST Points |
Standard does not earn KAST Points. Premium and Private earn points on eligible card spend in addition to the USD cashback band. The older Limited and Luxe names are not on this fee article.
What fees and transaction costs does Kast charge?
Standard accounts avoid an annual fee and pay the same published FX range as paid tiers. The fee article does not reduce the FX percentage for Premium or Private. Cashback and points are the paid-tier offset, and both stop at the monthly cap for cashback.
| Fee category | Amount on the October 12, 2026 fee article |
|---|---|
| Annual fee | $0, $1,000, or $10,000 by tier |
| USD card spend, top-up, Apple Pay, Google Pay | 0% |
| Foreign exchange on non-USD spend | 0.5%–1.75%, with the exact rate shown in the app |
| Non-USD purchase under $25 | $0.10 |
| Declined transaction, low balance | $0.50 |
| ATM withdrawal | $3 plus 2% of the amount, plus FX when the cash is not USD |
| Stablecoin deposit | 0%, excluding the sender’s network fee |
| ACH / Fedwire / SWIFT in | $2 / $15 / $30 |
KAST Tag transfers between users are free, instant, and capped at $10,000 a day and five transfers. Stablecoin withdrawals add a network fee plus 0.1%. The published examples are $1 on Solana, $0.20 on Arbitrum, $6 on Ethereum, and $5 on Tron, each plus 0.1%, with a $5 minimum.
Local bank payouts often add about 1% FX plus a small fixed fee. SPEI deposits and withdrawals in MXN are listed at 0%. PIX deposits and withdrawals in BRL are listed at 1% including IOF.
ATM rules on that fee article are $500 per withdrawal, and three withdrawals or $1,500 per 24 hours. The public cards page still describes a lower ATM ceiling of $250 per withdrawal and $750 a day. The in-app figure is the one applied at the machine.
Who is eligible for Kast and what are the account limits?
The cards page markets the Visa card across 170+ countries, subject to KYC and local restrictions. Card activation requires identity checks. A Standard virtual card can carry a $2 issuance fee in some regions, including cards inside the free allowance.
The October 12, 2026 fee article does not set a fixed card-spend, deposit, or balance maximum. It says individual transactions can still be held for security, merchant rules, network rules, or compliance review. ATM caps and the KAST Tag cap are the hard published ceilings.
| Limit category | Published figure |
|---|---|
| Card spend | No fixed maximum on the fee article |
| Account deposit | No fixed maximum on the fee article |
| ATM | $500 per withdrawal, or $250 on the cards page |
| KAST Tag sends | $10,000 a day, up to five transfers |
| Cards per account | 10 |
Exceeding a monitoring rule can place a transfer in review even when the table says unlimited.
What risks and custody tradeoffs does Kast present?
Because Kast is custodial, the account holder does not hold the deposit keys. Insolvency, a freeze, or a security incident can block access to the balance. A stablecoin depeg would reduce card purchasing power immediately, because deposits are converted into the USD balance at 1:1 only while that peg holds.
Chain delays can slow a deposit even if an existing balance still authorizes. A cleared Visa transaction is not reversed by an on-chain refund alone. KAST Points and cashback can be changed or ended under the rewards terms, and points are not the same unit as USD cashback.
The two ATM schedules are a practical limit on relying on a single public number. Paid memberships are annual. The cards page says a card can keep working after a paid plan ends, while the cashback and points rates follow the current tier.
Common questions
Is Kast a licensed bank?
Kast is a stablecoin platform and card program, not a commercial bank with insured checking. Balances are custodial assets on Kast’s ledger, not insured deposits.
How do cashback and KAST Points interact?
USD cashback is capped by monthly eligible spend: $2,000, $10,000, or $40,000 by tier. KAST Points accrue only on Premium and Private, at 1% and 2% of eligible spend. Redemption of USD cashback is manual in the app after a timelock, and the help center says the redeemed amount is applied to the next card purchase.
Can the card be used internationally?
Visa acceptance follows the network, and the cards page cites 170+ countries. Non-USD spend adds 0.5%–1.75% on every tier, plus $0.10 when the non-USD purchase is under $25.
