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Kast Card review

Updated September 28, 2026 · SumCue Editorial Team · Facts checked September 26, 2026

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Our verdict

Kast Card is a prepaid Visa card built for business users who hold funds in several currencies, supporting 30 of them in one custodial account. The trade-off is that funding may attract fees set out on the platform and support runs on email, help centre and community, with no phone line.

Key facts

Best for
Business teams holding many currencies and spending in crypto.
Monthly fee
$0↗
Card type
Prepaid↗
Top-up fee
Funding may be subject to fees as specified on the Platform↗
Cashback rate
1.5%↗
Card network
Visa↗
Currencies
30↗
Custody
Custodial↗
Legal entity
KAST Tech, Reg No. 16223↗
Headquarters
Comoros↗
Support channels
Email, Help-centre, Community↗
Features
Multi-currency, Crypto, Virtual card, Travel
Audience
Business
Official website
kast.xyz

Facts checked September 26, 2026, 3 sources

Apps and profiles

Elsewhere
LinkedInX

Pros and cons

Pros

  • Free monthly fee of $0, so the account itself costs nothing to keep.
  • Cashback of 1.5% on card spend.
  • 30 currencies in one account, with a virtual card and crypto spending among the features.
  • visa network, so the card works in the places business cards are expected to.

Cons

  • Support runs on email, help centre and community only, so there is no phone line for a card used across a team.
  • Loading money may attract fees as set out on the platform, which can outweigh the $0 monthly fee on a busy account.
  • Custody is custodial, so the balance is held by Kast Card and control of the money sits outside the business.

Ready to try Kast Card?

Scored 9.3 / 10 by SumCue.

See alternatives

Who it suits

  • Businesses paying suppliers or contractors in crypto
  • Teams that need 30 currencies available from a single prepaid balance
  • Finance teams wanting a virtual card for online and staff spend

Who should look elsewhere

  • bunq for everyday euro banking, where the free plan monthly fee is €0
  • Varo Believe Secured Credit Card for spending straight from a bank balance, since its card type is debit

Fees and FX

The monthly fee is $0, so running the account costs nothing recurring. Funding is the part to watch: loading money may attract fees as set out on the platform, so the cost of a top-up depends on the platform schedule at the time. Plan for that before moving payroll or client balances through the card.

The company behind it

Kast Card is run by KAST Tech, Reg No. 16223, registered in Comoros. Support runs on email, help centre and community, which means email, a help centre and a community rather than a phone line. For a business account that is worth checking before spend moves across, since day to day questions will go through those channels.

How Kast Card compares

Frequently asked questions

How much is the monthly fee?+

The monthly fee is $0, which means the account itself adds nothing recurring to a business budget. The charge to budget for is funding: loading money may attract fees as set out on the platform, separate from the monthly fee.

What does it cost to load money onto the card?+

Funding may attract fees as set out on the platform. That is the cost line to watch: the monthly fee is $0, so a free account can still carry a charge when money goes in, and the platform schedule decides the amount.

How many currencies can the account hold?+

The account supports 30 currencies and the card runs on visa, so a business can hold and spend in several currencies from one prepaid balance. The feature list covers multi-currency, crypto, virtual card and travel.

Is there cashback on spending?+

Yes. Cashback of 1.5% applies on card spend, which is the reward on offer alongside the free monthly fee of $0. It is a cashback card, so the reward comes back as cash rather than points or miles.

Who is the card aimed at?+

Kast Card is built for business users: the audience is listed as business, and the features skew that way with multi-currency, crypto, virtual card and travel. Individuals looking for a personal everyday card would find the focus narrower than they expect.

How are the funds held?+

Custody is custodial, so balances sit with Kast Card rather than on a self-custody wallet. That matters for a business weighing who controls the money, and it is the main point to check with a provider such as Wise or bunq if custody matters to you.

How do I get help if something goes wrong?+

Support runs on email, help centre and community, covering email, a help centre and a community. There is no phone line listed for the account, so anyone needing to talk to a person should factor that into the choice, especially for a business card used by a whole team.

What kind of card is it?+

It is a prepaid card on the visa network, funded before you spend rather than drawing on a bank balance. A virtual card is also listed among the features, which suits online subscriptions and staff spending kept away from the main card.

Sources

  • kast.xyz checked September 26, 2026

    Backs: Audience, Currencies, Features, Support channels

    “KAST Business: Your team is global. Your finances should be too.”

  • kast.xyz/en/legal/terms-and-conditions-of-service checked September 26, 2026

    Backs: Card type, Custody, Headquarters, Legal entity, Top-up fee

    “any remittance of Virtual Assets to KAST constitutes a transfer of ownership of such assets to KAST, in exchange for which KAST incurs a legally binding and enforceable payment obligation to you”

  • kast.xyz/en/membership checked September 26, 2026

    Backs: Cashback rate, Monthly fee, Card network

    “Standard - Free - Cashback Rate 1.5%”

Compiled from 3 source pages, checked September 26, 2026. We did not open an account.

Not confirmed yet: Currency conversion fee, Free ATM withdrawals, Protection.

Kast Card

Business teams holding many currencies and spending in crypto.

9.3/10See alternatives