a16z Says Stablecoins Are Core Financial Plumbing as On-Chain Credit Looms

Stablecoins have moved from a trader convenience to real financial infrastructure, and a16z crypto says that shift is now too far along to reverse.

• Stablecoins are now “core financial plumbing.”
• Payments are just the opening act.
• The next battle is on-chain credit.
• The U.S. dollar may be getting a very sharp digital upgrade.

a16z crypto’s new framework, “The New Stack of Global Finance: The Stablecoin Edition,” argues that stablecoins are no longer a side feature of crypto markets. They have become the settlement layer beneath wallets, fintech apps, exchanges, banks, and institutional payment systems. The firm says the transition to on-chain finance has crossed a “point of no return,” with “programmable dollars” now acting as the system used to move and finalize payments across a growing chunk of the digital economy.

For newcomers: a stablecoin is a crypto token designed to track the value of a fiat currency, usually the U.S. dollar. Unlike Bitcoin, which floats freely and is built to be censorship-resistant money, stablecoins are typically used as digital cash for payments, trading, remittances, treasury operations, and settlement. That difference matters. Bitcoin is the hard-money base layer many of us want. Stablecoins are the transactional wrapper many businesses and users actually reach for today because they are fast, familiar, and easy to integrate. Not glamorous, but neither is electricity.

a16z describes stablecoins as “fundamental financial pipelines” and even a new kind of “banking as a service” stack. In plain English, that means apps and financial platforms can plug into a shared money-moving layer instead of building clunky payment rails from scratch. The pitch is simple: if software can move information instantly, why should moving money still feel like it was designed in the age of fax machines and beige cubicles?

The report says these programmable dollars are already embedded in consumer apps, fintech platforms, and institutional workflows. Stablecoins are not just sitting idle on exchanges waiting for traders to wake up. They are increasingly being used as the common settlement asset across a wider set of financial rails.

a16z splits blockchain networks into three buckets: general-purpose chains like Ethereum, Solana, and layer-2 networks; payment-specific chains such as Stripe’s Tempo; and institutional networks like Canton. Stablecoins, the firm argues, are becoming the shared money layer across all of them.

For readers less familiar with the jargon: general-purpose chains are blockchains that can support many kinds of apps and assets. Layer-2s are systems built on top of a base chain like Ethereum to make transactions cheaper and faster. Institutional networks are more permissioned systems aimed at banks and regulated firms. The details vary, but the direction is the same: digital dollars are becoming the default fuel for blockchain-based settlement.

That matters because it suggests crypto is maturing beyond one-size-fits-all hype. Ethereum and Solana compete on speed, fees, and developer activity. Payment-focused networks are trying to streamline commerce. Institutional chains are designed for regulated workflows. Yet the value moving across those systems is increasingly the same type of thing: tokenized dollars. The rails may differ, but the asset underneath them is converging.

One of the big reasons this is happening, according to a16z, is that the banking bottlenecks are easing. More crypto-friendly banks are connecting fiat rails with on-chain infrastructure, which makes it easier for stablecoin issuers and payment companies to move between traditional money and blockchain-based money. The report also says stablecoin issuers are competing for OCC national trust charters and other licenses, a sign they want stronger legal footing inside the U.S. financial system.

For the non-bankers in the room: an OCC charter is a federal banking-related license that gives a company more formal standing under U.S. financial regulation. In other words, the stablecoin industry is not just trying to stay alive outside the system; it is trying to get a better seat inside it.

“Stablecoins have quietly become core financial plumbing.”

“The transition to on-chain finance has crossed the point of no return.”

“The bottlenecks in the banking industry are easing.”

The bullish case is hard to shrug off. Stablecoins already have clear advantages in speed, programmability, and cross-border transfer. Anyone who has ever waited for a wire transfer, battled a correspondent banking chain, or dealt with a bank that treats moving your own money like a suspicious activity knows why this is appealing. Stablecoins can move value across borders faster and often more cheaply than legacy systems, and they do it with internet-native logic instead of back-office machinery held together by policy manuals and prayer.

That said, the story is not just about payments efficiency. It is also about power. a16z argues stablecoins strengthen U.S. dollar dominance by exporting dollar access worldwide. That’s the part that should make policymakers, sovereign-currency purists, and anyone rooting for a more multipolar monetary order sit up straight.

In emerging markets, stablecoins can function like a digital escape hatch. Users with only an internet connection and a wallet may gain more direct access to dollars than they can through local banks, which may be slow, restrictive, undercapitalized, or simply unreliable. For people facing inflation, capital controls, or broken domestic payment systems, that is not a theoretical benefit. It is a practical one.

But let’s be honest about what this also means: stablecoins may be one of crypto’s most successful products precisely because they are not trying to overthrow the dollar. They are a distribution channel for it. That will annoy some decentralization purists, but ideology does not pay invoices. Stablecoins are useful because they fit into the existing financial order while making it faster and more global. That is a feature, not a bug, even if it comes wrapped in some uncomfortable truths.

They are also not meaningfully “decentralized” in the way Bitcoin is. Most stablecoins depend on reserves, banking relationships, issuer trust, and regulatory approval. The code may move on-chain, but the liability still lives in the old world of custodians, balance sheets, and lawyers. That’s the tension at the heart of the entire stablecoin boom: the tech looks clean, but the trust model is still very much human.

a16z says payments are only “the first act.” The second act is on-chain credit. That is where the report gets especially interesting. The idea is that once stablecoins are deeply embedded in finance, a new credit market can form directly on blockchain rails, using on-chain collateral, reputation systems, and programmable covenants.

That sounds promising for the same reason open finance always sounds promising: it could reduce friction, improve transparency, and create new lending markets that are faster than the current mess. It could also help underbanked borrowers or global businesses that struggle to access traditional credit. If done well, it may allow loans to be issued, monitored, and settled with fewer intermediaries and far more automation.

Still, credit is where the rubber meets the road, and where the road often blows out. Lending is not just about collateral; it is about risk, trust, and whether the system can survive stress. On-chain credit could become more efficient than today’s paperwork-heavy banking stack. It could also become a gleaming new machine for leverage, liquidations, and bad underwriting if the incentives are rotten. Faster doesn’t automatically mean safer. Sometimes it just means the wreck happens in real time.

There is also the question of how much of this remains genuinely open versus quietly centralized. Payment-specific chains, institutional networks, and licensed stablecoin issuers may improve adoption, but they also risk creating a more regulated and permissioned version of crypto finance. That may be necessary for scale. It may also be the moment where the original anti-fragile, anti-censorship ethos gets sanded down to make everything easier for compliance teams and corporate treasurers.

That is the tradeoff. More adoption usually means more institutional structure. More structure usually means more control. Crypto has spent years arguing that it can be both open and robust enough for mainstream finance. Stablecoins are one of the clearest tests of that claim.

What are stablecoins becoming?

They are becoming the settlement layer and infrastructure backbone for a growing share of digital finance, from consumer apps to institutional payment systems.

Why does a16z think stablecoins matter now?

Because they have moved from trading tools to practical financial plumbing that can power payments, treasury flows, and cross-border settlement.

What comes after payments?

a16z says the next major phase is on-chain credit built on stablecoin rails, with collateral, reputation, and programmable rules baked into the system.

Which networks are part of this new stack?

The report points to general-purpose chains like Ethereum and Solana, payment-specific chains like Stripe’s Tempo, and institutional networks like Canton.

How do stablecoins affect the U.S. dollar?

They may reinforce dollar dominance by exporting dollar access globally through internet-connected wallets and blockchain-based payment systems.

What risks still matter?

Regulatory uncertainty, issuer concentration, depegging risk, banking dependence, and the reality that programmable money is only as trustworthy as the institutions behind it.

That last point is the one too many glossy decks try to bury. A stablecoin can be fast, global, and elegant. It can also fail, freeze, depeg, or get caught in a regulatory crossfire. The industry loves to sell the upside as if trust were magically replaced by code. It was not. It was repackaged.

Still, the broader shift is real. Stablecoins are no longer a crypto side quest. They are increasingly being used as the plumbing beneath wallets, fintech apps, exchanges, banks, and payment systems. If the next phase really is on-chain credit, then the stablecoin market may be remembered less as a trading instrument and more as the financial operating system that helped drag payments, settlement, and lending into the internet age.

Whether that future looks like cleaner finance or just a faster version of the same power structure is still unresolved. But the direction is obvious: stablecoins are no longer waiting politely on the sidelines. They are already inside the machine.