The short answerSpending from stablecoins is the cheapest way to use a crypto card, and Kast builds around that rather than treating it as an option. Broad international availability and competitive rewards are offset by a company founded in 2024 that says little about who issues the card behind it.
Best forStablecoin-native spending with global reach
True all-in costweight 25%
7.5avg 7.3
Issuer stabilityweight 20%
5.0avg 6.6
Coverageweight 20%
8.0avg 6.8
Rewards valueweight 15%
7.0avg 6.5
Custody & termsweight 10%
5.5avg 6.7
Supportweight 10%
5.5avg 6.4
this service category average across 15Score = Σ mark × weight. Usable, but there are better options for most people. Methodology.
| Criterion | Mark | What we found | Source | Checked |
|---|
| True all-in cost | 7.5 | not sourced yet | not sourced yet | — |
| Issuer stability | 5.0 | not sourced yet | not sourced yet | — |
| Coverage | 8.0 | not sourced yet | not sourced yet | — |
| Rewards value | 7.0 | not sourced yet | not sourced yet | — |
| Custody & terms | 5.5 | not sourced yet | not sourced yet | — |
| Support | 5.5 | not sourced yet | not sourced yet | — |
What we liked, and what fell short
Liked- Stablecoin-first design avoids volatile conversion at the till
- Broad international availability
- Competitive rewards on higher tiers
Fell short- Founded in 2024 with minimal public track record
- Custodial model with limited disclosure of issuing partners
Why the marks landed where they did
Most crypto cards let you spend volatile assets and charge you a spread for the privilege. Kast starts from stablecoins, which removes the largest cost in this category before it arises.
Why stablecoin-first matters
Converting BTC or ETH at the point of sale means crossing a spread on a volatile asset, typically the biggest single cost of using a crypto card. Holding and spending a stablecoin balance reduces that to a small conversion into local currency. Kast's design assumes that workflow rather than offering it as an advanced option.
Coverage and rewards
Available across a wide international footprint including markets that European and US providers do not serve, with tiered card products and cashback that is competitive at higher tiers.
The company
Founded in 2024, with limited public disclosure about issuing partners, licensing and how balances are held. That is the standing concern with every new entrant in this category, and it is the reason for the issuer-stability mark of 5.
Who should use it
Users wanting cheap stablecoin spending in markets with few alternatives, holding minimum working balances. Users with access to Gnosis Pay, Coinbase or a regulated European issuer should prefer those.
FAQ
Why is stablecoin spending cheaper?+
Converting a volatile asset at the point of sale crosses a wider spread. Spending from a stablecoin balance reduces the cost to a small conversion into local currency.
How established is Kast?+
It was founded in 2024 and discloses little about its issuing partners and licensing, which is the main caution.
Where is Kast available?+
A wide international footprint including markets that European and US programmes do not serve.
Is Kast custodial?+
Yes, balances are held by the provider, so keeping only working amounts on the card is prudent.
