Card rails are starting from the other end

Card networks have taken a different approach. Instead of starting with blockchain settlement and leaving conversion to the user, they have focused on embedding stablecoins into existing financial infrastructure.

Mastercard’s $1.8 billion acquisition of BVNK expands its stablecoin settlement capabilities across more than 130 jurisdictions, integrated into established reporting and compliance systems. Visa’s partnership with Bridge enables stablecoin-linked cards that allow users to spend digital dollar balances at any merchant that accepts Visa, with conversion handled in the background.

The distinction reflects a deeper architectural choice about where complexity should sit. In Meta’s model, a payout requires a multi-step journey through wallets, exchanges and withdrawal queues before it becomes spendable. While this lighter-touch approach may also reflect the regulatory and operational burden of directly offering fiat conversion and custody services across dozens of jurisdictions, the user is ultimately responsible for navigating the crypto layer. In the card network model, stablecoins exist entirely behind the scenes. Users never see USDC balances or manage blockchain networks. Fiat enters and exits the system as normal, while stablecoins handle settlement invisibly.

Both models use stablecoins in the settlement layer, but they differ significantly in how user-facing complexity is handled.

Where stablecoin adoption actually scales

Stablecoin transaction volumes reached $33 trillion in 2025, up 72 percent on the previous year, with institutional adoption continuing to accelerate. At this point, the question for the payments industry is no longer whether stablecoins will become part of global financial infrastructure – that shift is effectively underway – but whether the off-ramp layer can scale at the same pace as onchain settlement.

The systems that will ultimately scale are those that make blockchain infrastructure invisible to the end user. Stablecoins may sit in the middle of the stack, but the user experience will be defined entirely in fiat terms: pesos in a wallet, a card balance, or a payment accepted at checkout, with no awareness of the underlying rails.

This is where current implementations, including Meta’s, expose the industry’s remaining friction. By surfacing wallets, networks, and conversion steps directly to creators, they reveal the operational complexity that still sits beneath what is marketed as instant global payments. The infrastructure is efficient at settlement but fragmented at integration, reflecting an industry that has progressed faster in building onchain systems than at embedding them cleanly into existing financial workflows.

Meta has helped push the conversation forward, but the next phase of adoption will be defined less by transaction speed or blockchain throughput and more by seamless integration into the financial stack: card networks, banking apps and merchant terminals. In that end state, stablecoins will be present in the system but largely invisible to users. That work is already underway across the card networks; the platforms handling payouts will need to keep pace.

Note: The views expressed in this column are those of the author and do not necessarily reflect those of CoinDesk, Inc. or its owners and affiliates.

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