Monolith Card Alternatives

Monolith Card earned a loyal following as one of the earliest self-custodial Ethereum debit cards, but as of July 2026 it has been wound down, and former users are actively looking for what to switch to. If you liked the idea of spending crypto directly without heavy identity checks, that gap is exactly what this comparison addresses.

WaldenPay is a virtual prepaid card that runs on Visa and Mastercard rails, funded with USDT, USDC, BTC, or ETH, and issued after just an email signup. The one-line verdict: Monolith suited self-custody purists who wanted a physical card tied to their own wallet, while WaldenPay suits people who want a fast, privacy-focused virtual card with none of the identity paperwork and support for Apple Pay and Google Pay.

Monolith Card's biggest draw was self-custody - users kept control of their ETH and ERC20 tokens rather than handing funds to a custodian, and its top-up fees were notably low at 1% via ERC20 or 2% through the app. It also issued a physical card, which appealed to people who wanted to swipe or tap at a terminal rather than rely on a phone wallet. For Ethereum-native users comfortable managing their own keys, it was a genuinely useful bridge between DeFi and everyday spending.

That said, full KYC was required, so it was never a fit for anyone prioritizing minimal data collection. Its reliance on the Ethereum ecosystem also meant no Bitcoin or Tether support, narrowing its appeal to ETH-centric holders.

With Monolith gone, the practical differences that matter now are less about picking between two live products and more about what a replacement needs to offer. Here's where WaldenPay diverges from what Monolith used to provide.

• KYC and signup: Monolith required full identity verification; WaldenPay asks only for an email, with no document verification for standard use.
• Custody model: Monolith was self-custodial by design; WaldenPay is custodial, meaning the platform manages card funding on your behalf after top-up.
• Card format and wallet support: Monolith issued a physical card with no Apple Pay or Google Pay; WaldenPay is virtual-only but works with both mobile wallets, plus 150M+ merchants on Visa/Mastercard rails.
• Fees and top-up assets: Monolith's 1-2% top-up fee undercuts WaldenPay's 5%, but WaldenPay adds BTC, USDT, and USDC (TRC20 & ERC20) support alongside ETH, versus Monolith's ETH/ERC20-only scope; WaldenPay also charges a $10 one-time issuance fee where Monolith's was free.

If self-custody was the whole point for you, no direct successor fully replicates that model, and it's worth being upfront about that rather than overselling WaldenPay as a like-for-like swap. But if what you actually valued was spending crypto without heavy identity checks, WaldenPay's minimal data collection and instant virtual card issuance make it a strong next step, especially if you hold USDT or USDC rather than being locked into ETH.

For most people displaced by Monolith's shutdown, the combination of stablecoin flexibility, Apple Pay/Google Pay support, and no-document signup will cover the same use case with less friction, even though the top-up fee runs higher. Compare the fee structure against how often you plan to top up before deciding.

Frequently asked questions

Is Monolith Card still available in 2026?

No, Monolith Card has been wound down as of July 2026 and is no longer issuing or supporting cards. Former users need to migrate to an alternative provider.

Does WaldenPay require KYC like Monolith did?

No. WaldenPay only requires an email to sign up, with no identity document verification for standard use, unlike Monolith's full KYC requirement.

Can I keep self-custody of my crypto with WaldenPay?

No, WaldenPay is a custodial product, so funds are managed by the platform once you top up your card. If self-custody is a strict requirement, WaldenPay works differently than Monolith did in that respect.

What crypto can I use to fund a WaldenPay card?

WaldenPay accepts USDT and USDC on both TRC20 and ERC20 networks, plus BTC and ETH. This is broader than Monolith's ETH and ERC20-only support.