KAST Card

KAST Card Visa Debit Review: Fees, Rewards & Availability

Basic Information

KAST Card positions itself as a stablecoin-powered global money app that bridges cryptocurrency holdings with everyday spending through Visa payment cards. The platform provides USD-denominated account functionality designed to enable users to spend stablecoins and other cryptocurrencies at over 150 million merchants and ATMs worldwide.

KAST explicitly states it is not a bank but rather a financial technology company where virtual accounts, payment cards, custody, and on/off ramp services are provided by licensed partners. Following an $80M Series A announced in May 2026, the platform now serves more than one million users across 170+ countries and processes close to $5 billion in annualized transaction volume.

The core value proposition centers on borderless dollar access without traditional banking rails, targeting globally mobile users who hold or earn stablecoins and want frictionless spending capability. KAST's technical infrastructure supports instant virtual card issuance, Apple Pay and Google Pay integration, and a conversion mechanism that allows users to deposit major cryptocurrencies which are automatically converted into supported stablecoins for spending.

Rewards and Benefits

Cashback Structure

KAST Card operates a USD cashback program with monthly spending caps, replacing the previous season-based KAST Points system. Rewards are paid as real USD cashback with additional KAST Points for paid tiers:

Important limitations: Cashback has a 14-day holding period before redemption and cannot be withdrawn or sent externally - it is only usable for eligible KAST card purchases. Redeemed cashback becomes a separate spendable sub-balance applied first to the next eligible card purchase. Rewards exclude ATM withdrawals, fees, conversions, and disputed/chargeback transactions.

Staking Requirements

KAST Card does not require staking for basic card usage but offers SOL staking point accrual as an optional rewards mechanic. Official sources show conflicting rates for Standard tier (0.25 vs 0.125 KAST Points per SOL every ~2 days - verify in app):

• Standard: 0.25 KAST Points per 1 SOL every ~2 days (conflicting sources - verify in app)
• Premium: 0.5 KAST Points per 1 SOL every ~2 days
• Private: 1 KAST Point per 1 SOL every ~2 days

Additional earning opportunities include Cash Bonus Tasks for new users (up to $250 through spend milestones) and expanded referral rewards (up to $250 per referred user plus tier bonuses).

Fees and Limits

KAST Card fees vary significantly based on usage patterns and geographic location. The fee structure includes multiple components across different transaction types, with FX fees now varying by country and currency.

Transaction Fees

Card Issuance and Annual Fees

*Note: $2 in some countries for first virtual card

Deposit and Withdrawal Fees

Crypto Deposits:

• Stablecoins: 0% (converted to USD at 1:1 with 0% spread)
• Non-stablecoin crypto: 2-5% auto-conversion fee (varies per token)

Bank Transfer Deposits:

• ACH: $2 deposit fee
• Fedwire: $15 deposit fee
• EUR Payment Link: 0.6% processing + 0.3% FX

Withdrawal Fees:

• Solana (USDT/USDC): $1 + 0.1%
• Arbitrum (USDC): $0.20 + 0.1%
• Ethereum ERC-20: $6 + 0.1%
• Tron (USDT): $5 + 0.1%
• USD Bank Payouts: 0.5% (waived till Feb 2026) + $2 ACH or $20 Fedwire

Spending and Withdrawal Limits

Card Spending: Unlimited (up to available balance); very large transactions may trigger compliance checks

ATM Withdrawals:

• $250 maximum per withdrawal
• Up to 3 withdrawals per rolling 24 hours
• $750 total per rolling 24 hours

KAST Convert: $1 minimum, $1M maximum (larger amounts via Concierge)

Inactivity Fees: $1 monthly fee on dormant accounts (after 12 months inactivity)

Card Tiers and Options

KAST Card offers three distinct tiers with Visa Infinite benefits for Premium and Private tiers, representing a significant upgrade from the previous tier structure.

Visa Infinite Benefits (Premium/Private): Lounge access, global concierge, travel insurance, purchase protections, and Visa Infinite hotel benefits. Physical V2 Infinite card shipping was scheduled to begin at the end of April 2026.

All tiers share identical spending limits (unlimited up to balance) and ATM withdrawal restrictions ($250 per withdrawal, 3 per day, $750 total per 24 hours). The primary differences lie in rewards rates, monthly cashback caps, card materials, network benefits, and annual fees.

Top-Up Methods

• Pre-load required: must deposit funds before spending
• Supports stablecoins (USDT, USDC, USDe, PYUSD, RLUSD), BTC, ETH, SOL, XRP, BNB, and 20+ cryptos (auto-converted), plus USD/EUR fiat deposits
• Top-up via mobile app: deposit crypto or fiat, or connect supported wallets/networks

Self-Custody Custodial

• Platform holds all private keys; users do not control them
• When crypto is deposited, ownership transfers to KAST (treated as a sale)
• If provider disappears, users lose access to funds
• Assets are managed at KAST's corporate treasury level, not in segregated user wallets

Supported Currencies and Conversion

Supported Cryptocurrencies

Stablecoins (network-dependent support for receiving/sending):
USDT, USDC, USDe, PYUSD, RLUSD

Other cryptocurrencies (supported for deposit with auto-conversion):
BTC, ETH, SOL, XRP, BNB, AAVE, ARB, LINK, COMP, CRO, FET, JUP, OKB, ONDO, PENGU, TRUMP, POL, ENA, RENDER, SPX, XLM, SUSHI, GRT, QNT, TRX, UNI, LEO

Supported Blockchain Networks

Solana, Ethereum, Arbitrum, Tron, Polygon, Binance Smart Chain, Avalanche C-Chain, TON, Base, Stellar, Optimism, Sonic, Bitcoin, XRPL

Supported Fiat Currencies

Primary currency: USD (all balances displayed in USD)

Fiat payout support: USD (local/international), AED, JPY, SAR, INR, IDR, PHP, THB, NGN, GBP, MXN, EUR, AUD, COP, BRL (PIX), ARS

Currency Conversion

• Stablecoin → USD: 1:1 with 0% spread
• Non-stablecoin crypto → stablecoin: Auto-conversion with 2-5% fee
• USD → non-USD fiat (card spend): 0.5-1.75% FX fee (varies by country/currency)
• EUR → USD (Payment Link deposits): 0.6% processing + 0.3% FX

Geographic Availability

KAST Card is available in 170+ countries according to the platform, though the company does not publish a comprehensive list of all supported or restricted countries for platform access. The authoritative method to check availability is during in-app sign-up through the country dropdown selection.

Physical Card Shipping Destinations

Europe:
Aland Islands (AX), Austria (AT), Belgium (BE), Cyprus (CY), Czech Republic (CZ), Denmark (DK), Estonia (EE), Faroe Islands (FO), Finland (FI), France (FR), Germany (DE), Gibraltar (GI), Greece (GR), Greenland (GL), Guernsey (GG), Hungary (HU), Iceland (IS), Ireland (IE), Isle of Man (IM), Italy (IT), Jersey (JE), Kosovo (XK), Latvia (LV), Liechtenstein (LI), Lithuania (LT), Luxembourg (LU), Malta (MT), Monaco (MC), Netherlands (NL), Norway (NO), Poland (PL), Portugal (PT), Romania (RO), San Marino (SM), Slovakia (SK), Spain (ES), Svalbard and Jan Mayen (SJ), Sweden (SE), Switzerland (CH), United Kingdom (GB), Vatican City (VA)

Americas:
American Samoa (AS), Anguilla (AI), Antigua and Barbuda (AG), Argentina (AR), Aruba (AW), Bahamas (BS), Barbados (BB), Belize (BZ), Bermuda (BM), Bolivia (BO), Brazil (BR), British Virgin Islands (VG), Caribbean Netherlands (BQ), Cayman Islands (KY), Chile (CL), Colombia (CO), Costa Rica (CR), Curacao (CW), Dominica (DM), Dominican Republic (DO), Ecuador (EC), El Salvador (SV), Falkland Islands (FK), French Guiana (GF), Grenada (GD), Guadeloupe (GP), Guam (GU), Guatemala (GT), Guyana (GY), Honduras (HN), Martinique (MQ), Mexico (MX), Montserrat (MS), Northern Mariana Islands (MP), Panama (PA), Paraguay (PY), Peru (PE), Puerto Rico (PR), Saint Barthelemy (BL), Saint Kitts and Nevis (KN), Saint Lucia (LC), Saint Martin (MF), Saint Pierre and Miquelon (PM), Saint Vincent and the Grenadines (VC), Sint Maarten (SX), Suriname (SR), Trinidad and Tobago (TT), Turks and Caicos Islands (TC), United States (US), United States Minor Outlying Islands (UM), U.S. Virgin Islands (VI), Uruguay (UY)

Asia:
Azerbaijan (AZ), Bangladesh (BD), Bhutan (BT), Brunei (BN), Christmas Island (CX), Cocos Islands (CC), East Timor (TL), Georgia (GE), Hong Kong (HK), Indonesia (ID), Israel (IL), Kazakhstan (KZ), Kyrgyzstan (KG), Laos (LA), Macau (MO), Malaysia (MY), Maldives (MV), Mongolia (MN), Nepal (NP), Palestine (PS), Philippines (PH), Singapore (SG), South Korea (KR), Sri Lanka (LK), Tajikistan (TJ), Thailand (TH), Turkey (TR), Turkmenistan (TM), Uzbekistan (UZ), Vietnam (VN)

Oceania:
Cook Islands (CK), Fiji (FJ), French Polynesia (PF), Kiribati (KI), Marshall Islands (MH), Micronesia (FM), Nauru (NR), New Caledonia (NC), New Zealand (NZ), Niue (NU), Norfolk Island (NF), Papua New Guinea (PG), Pitcairn (PN), Samoa (WS), Solomon Islands (SB), Tokelau (TK), Tonga (TO), Tuvalu (TV), Vanuatu (VU), Wallis and Futuna (WF)

Africa:
Angola (AO), Benin (BJ), Botswana (BW), Cape Verde (CV), Chad (TD), Comoros (KM), Djibouti (DJ), Egypt (EG), Equatorial Guinea (GQ), Eswatini (SZ), Ethiopia (ET), Gabon (GA), Gambia (GM), Ghana (GH), Guinea (GN), Ivory Coast (CI), Lesotho (LS), Madagascar (MG), Malawi (MW), Mali (ML), Mauritania (MR), Mauritius (MU), Mayotte (YT), Morocco (MA), Niger (NE), Nigeria (NG), Reunion (RE), Sao Tome and Principe (ST), Seychelles (SC), South Africa (ZA), Togo (TG), Tunisia (TN), Western Sahara (EH), Zambia (ZM)

Middle East:
Bahrain (BH), Kuwait (KW), Oman (OM), Qatar (QA), Saudi Arabia (SA), United Arab Emirates (AE)

For Nigerian users specifically, the card is marketed by BANEX Microfinance Bank Limited, licensed by the Central Bank of Nigeria. Hong Kong and Macau are treated as separate jurisdictions from Mainland China, with Hong Kong appearing on the shipping list while Mainland China does not.

Compliance and Security

Identity Verification Requirements

KAST Card requires users to complete identity verification (KYC) before accessing any services, including depositing, withdrawing, and creating cards. The KYC process uses Sumsub for ID verification and claims to take less than two minutes in marketing materials.

Regulatory Framework

KAST operates as a financial technology company (not a bank) with services provided through licensed partners. The card program is issued by Third National under Visa license. Corporate entities include KAST Tech (Reg No. 16223, incorporated in Anjouan, Comoros) for general terms and Troia Corp identified in cardholder agreements as the contracting party alongside users and the issuer.

Custody Model

KAST Card operates a fully custodial model where deposited crypto is legally sold to KAST and managed at corporate treasury level. Users no longer retain ownership of transferred assets, creating counterparty risk distinct from self-custody solutions. Partners are not required to segregate funds from KAST's other accounts unless otherwise agreed. Note that some KAST Earn vault assets are marketed as self-custodial via Privy, but card/account balances remain banking-like stablecoin obligations.

Security Features

• Two-factor authentication using authenticator apps with backup codes
• Card controls including instant freeze/unfreeze functionality
• 6-digit PIN for ATM use (securely encrypted)
• Enterprise-grade protection through partnerships with Fireblocks and BitGo
• Fraud monitoring via Sardine and Elliptic for suspicious activity scanning

Fund Protection

KAST Card explicitly states that funds are not insured by government deposit protection schemes. In the event of failure, bankruptcy, or liquidation, users may not be protected and may not recover funds, as they become unsecured creditors.

Banking & Financial Services

KAST Card's Global Account services are powered by Bridge, leveraging banking services provided by Lead Bank, Member FDIC. However, the account and routing details provided to users are virtual collection identifiers, not direct bank accounts. Funds are automatically converted to digital assets upon receipt, and the resulting KAST digital asset balance is not FDIC insured.

The platform distinguishes between different service layers:

• Card/Account balances: Banking-like stablecoin obligations that are not bank deposits or FDIC insured
• Virtual collection identifiers: Used for USD transfers but not actual bank accounts
• Bridge/Lead Bank settlement: Backend infrastructure for processing traditional banking rails
• KAST Earn vault assets: Some marketed as self-custodial via Privy (separate from card balances)

This hybrid model provides traditional banking convenience (ACH, wire transfers) while maintaining the platform's cryptocurrency-focused architecture, though users should understand the distinction between traditional bank deposit protections and KAST's custodial digital asset model.

Technical Details

Mobile Wallet Integration

• Apple Pay: Supported (older cards may require reissuance for compatibility)
• Google Pay: Supported with detailed setup guides
• Samsung Pay: Not currently supported
• PayPal: KAST Card can be used for PayPal payments

Conversion Mechanics

Conversion timing:

• Stablecoin deposits converted to USD at deposit time (1:1, 0% spread)
• Non-stablecoin crypto auto-converted to stablecoins at deposit time (2-5% fee)
• Card spending debits from USD balance (conversion happens before transaction)

Legal framework:
Crypto deposits are treated as sales to KAST with ownership transferring to KAST and assets managed at corporate treasury level.

Card Format and Delivery

• Virtual cards: Instant in-app availability after KYC
• Physical cards: Typically delivered in 10-20 business days to supported destinations
• Card materials: Range from premium plastic (Standard) to metal and premium materials (Premium/Private)

User Experience

Mobile App Features

• Instant virtual card creation after KYC completion
• View card details (number, CVV, expiration)
• Freeze/unfreeze card controls (instant)
• Balance management and transaction history
• Stablecoin deposit/withdrawal functionality
• Crypto-to-stablecoin conversion (KAST Convert)
• SOL staking for rewards points
• KAST Earn integration (USD Prime Vault up to 3.3% APY, Gauntlet Alpha Vault up to 7.0% APY)

Support Channels

• 24/7 support for all tiers via WhatsApp, WeChat, Telegram, and email
• VIP Concierge for Premium and Private tiers with claimed 15-minute response times
• Concierge-mediated 2FA resets and backup code recovery

Common User Feedback

Positive aspects:

• Fast onboarding and real-world spendability
• Successful international usage and Apple Pay integration
• Straightforward stablecoin loading and everyday spending

Common limitations:

• KYC/document approval difficulties
• Mixed support responsiveness reports
• Regional availability disappointments
• Occasional ATM/PIN issues requiring troubleshooting

Best Suited For

• Stablecoin holders who want to spend USD-pegged assets with Visa acceptance globally
• High-volume USD spenders who can maximize monthly cashback caps and justify tier fees
• International travelers who accept variable FX fees for crypto-to-fiat spending convenience
• Users comfortable with custodial risk who prioritize convenience over self-custody principles

Pros and Cons

Pros

• Zero fees on USD stablecoin deposits and spending
• Instant virtual card issuance with broad Visa acceptance
• Visa Infinite benefits for Premium and Private tiers
• Apple Pay and Google Pay integration
• Real USD cashback with no token staking requirements

Cons

• Fully custodial model with counterparty risk
• Monthly cashback caps limit high-volume rewards
• Variable FX fees on non-USD spending
• Expensive ATM withdrawal structure
• Funds not protected by deposit insurance

Conclusion

KAST Card has evolved into a more mature stablecoin spending solution with its transition to USD cashback rewards and Visa Infinite benefits for higher tiers. The platform's 0% spread on stablecoin deposits and instant virtual card issuance continue to provide clear advantages for crypto holders seeking spending flexibility, while the new cashback structure offers more predictable rewards than the previous season-based system.

The monthly cashback caps represent a significant change that limits rewards for very high-volume spenders, though the caps are generous for most users. The addition of Visa Infinite benefits for Premium and Private tiers adds substantial value beyond just cashback rates. However, the fully custodial model continues to introduce counterparty risk that users must carefully weigh against convenience benefits.

KAST Card remains most suitable for users who primarily spend in USD, hold stablecoins they want to monetize, and are comfortable with custodial crypto services. The lack of deposit insurance and explicit warnings about potential fund loss in insolvency scenarios make this unsuitable for users seeking bank-like protections or those uncomfortable with counterparty risk in the crypto ecosystem.

Additional Information

Break-Even Analysis for Tier Selection

The cashback structure with monthly caps makes break-even analysis more complex than simple annual spending calculations:

Note: Higher tiers also include KAST Points and Visa Infinite benefits that provide additional value beyond pure cashback calculations.

Technical Limitations and Workarounds

Apple Pay compatibility: Older cards may require reissuance through support for Apple Pay functionality.

Country availability: No public country list available; check in-app dropdown during signup.

Large transactions: Very large purchases may trigger compliance review; contact concierge in advance for planned large transactions.

Private tier spend cap inconsistency: Official sources show conflicting information ($40k/month on membership page vs $50k/month in some help articles - verify current terms in app).

Risk Disclosure Summary

KAST Card's official risk disclosure emphasizes no deposit insurance, potential fund loss in insolvency, regulatory risks, custody risks where users don't retain crypto ownership, partner dependency risks, cybersecurity risks, and crypto volatility exposure.

Recent Platform Developments

• KAST V2 Infinite cards with Visa Infinite benefits launched for Premium and Private tiers
• Cash Bonus Tasks offering up to $250 in bonus cash for new users through spend milestones
• Enhanced referral program with up to $250 per referred user plus tier bonuses
• KAST Earn product offering USD Prime Vault (up to 3.3% APY) and Gauntlet Alpha Vault (up to 7.0% APY)
• $80M Series A funding announced May 2026, supporting expansion to over 1 million users