Stripe data shows the median top AI company operates in 55 countries by its first year, double the rate of SaaS companies from three years prior. This borderless nature from day one requires financial infrastructure that can immediately support global payment methods and compliance.

As AI agents become sophisticated, they'll need to pay for services. Traditional banking is too slow and fragmented for them. Crypto, as the internet's native money, provides the instant, global, low-fee rails for AI agents to transact with each other and with web services, creating a major new use case.

The cost to convert local currencies into dollar-backed stablecoins often includes a premium over the official FX rate. This "stablecoin access premium" is highly correlated with FX volatility, suggesting the newer stablecoin market is already taking pricing cues from the larger, more mature FX market.

Stablecoin adoption by U.S. entities merely shifts existing dollar assets from bank deposits or money market funds. True new demand for the U.S. dollar only materializes when foreign households or corporates convert their local currencies into dollar-backed stablecoins for the first time, creating a net FX conversion.

Instead of funding another stablecoin protocol, the more viable investment is in the tooling layer. This includes payment systems, SDKs, and accounting software (like triple-entry bookkeeping) that enable small businesses globally to integrate stablecoin payments into their existing fiat workflows.

By building its own financial stack "straight to the metal" on MasterCard, bypassing third-party issuers, Brex gained a crucial advantage. This vertical integration provides the flexibility to launch in new countries with the "flip of a switch" and power complex embedded finance partnerships.

Despite promising instant, cheap cross-border payments, stablecoins lack features critical for corporate treasurers. The absence of FDIC insurance, a single standard ("singleness of money"), and interoperability between blockchains makes them too risky and fragmented for wholesale use.

Instead of disrupting the established SWIFT network, Japan's stablecoins are positioned to work alongside it. They offer a parallel system for faster, cheaper transactions, potentially reducing fees by up to 80%, while leveraging SWIFT's existing trust and compliance frameworks for broader adoption.

Remitly thrives by offering a service that is cheaper and more efficient than traditional players like Western Union, yet remains integrated within the established banking system. This unique position allows it to serve users' needs without triggering the regulatory skepticism faced by decentralized solutions like stablecoins.