Few technologies have captured the imagination of the financial world quite like stablecoins. They promise to make money programmable, borderless, and instant. With blockchain as their foundation, stablecoins can streamline settlement, reduce costs, and open up a new era of global commerce.

Yet despite their growing adoption, stablecoins represent only 0.03% of the $120 trillion B2B payments market. The reason is simple: on their own, stablecoins don’t constitute a full payment system.

Businesses need more than fast transfers. They need context—the ability to link payments to contracts, invoices, and compliance data. Institutions processing payments for businesses also need to operate with counterparty trust and robust compliance frameworks.

The potential of stablecoins to revolutionize payments will remain largely untapped until these missing layers are built.

Why Stablecoin Payments Need Authorization and Context

Traditional payment systems have long relied on authorization—the ability to approve a transaction before settlement. When a card is swiped or a wire is initiated, institutions verify funds, screen for fraud, and apply compliance checks. This two-step process—authorization first, settlement later—is what makes payments reliable, reversible when needed, and compliant.

Equally important is the context: the information that moves alongside the funds. Payment messages transmit essential information for compliance and business operations, including Travel Rule data, invoice numbers, merchant details, and customer identifiers. This context allows businesses to reconcile payments with contracts, match them with invoices, and meet AML/CTF requirements.

Crypto transactions, by contrast, are unilateral and lack context. Whoever holds the private keys decides has full control to decide whether settlement happens. Without a pre-transaction authorization step or counterparty context, institutions have no way to vet, approve, or refuse incoming funds. Additionally, blockchains record only the amount, asset, and wallet addresses—no information about the counterparty, purpose, or which invoice it references.

Without a pre-transaction authorization step or counterparty context, crypto rails can’t power real-world payments. Businesses need to know who they’re transacting with, why a payment is being made, and whether it meets compliance criteria before funds move.

This is a key limitation stablecoins face today. They enable instant, global value transfer, but lack the context, trust signals, and institutional coordination that make payments truly work for businesses.

How the FATF Travel Rule Became a Catalyst for Crypto Authorization

When the FATF introduced the Travel Rule in 2019, it created the perfect conditions to build a compliant authorization layer for crypto. The rule requires counterparties in a virtual asset transaction to exchange originator and beneficiary information before settlement.

For the first time, crypto institutions were required to collaborate before a transaction occurred, mirroring the same pre-transaction authorization and due diligence flows that underpin traditional finance.

At Notabene, we saw this as a pivotal opportunity. The Travel Rule isn’t just a regulatory requirement—it’s an architectural upgrade. It gives the industry a shared standard to exchange trusted information, unlock counterparty confidence, and enable compliant, authorized crypto transactions at scale.

We’ve Already Built It: Pre-Transaction Authorization as Best Practice

Over the past five years, Notabene has turned Travel Rule compliance into an operational standard for the industry.

Today, more than 2,000 institutions across 100+ jurisdictions rely on Notabene’s open Transaction Authorization Protocol (TAP) to exchange verified transaction data and pre-transaction authorizations. To date, the Notabene Network has powered more than $2 trillion in compliant transaction volume.

Within our network, pre-transaction authorization has become an established best practice. Counterparties exchange compliance data, verify each other’s risk profiles, and explicitly approve transactions before funds move.

The Dilemma: Global Travel Rule Adoption Still Faces Gaps

Since the FATF introduced the Travel Rule in 2019, global implementation has expanded rapidly but unevenly.

According to the FATF’s June 2025 targeted review, 85 jurisdictions now enforce or have enacted Travel Rule legislation, up from 65 in 2024. 99 out of 117 jurisdictions had either passed or were in the process of passing relevant legislation at the time of the report.

However, only 35 jurisdictions have initiated active enforcement or supervisory actions. Nearly 60% of jurisdictions with legislation have yet to begin active Travel Rule enforcement.

Even where rules exist, VASPs face structural barriers to compliance. Because public blockchains are open settlement layers, VASPs cannot fully control the origin of incoming transfers. Many VASPs still lack the ability to reject deposits that arrive without verified Travel Rule data or from untrusted counterparties, which undermines their ability to maintain consistent counterparty risk controls.

This fragmented and inconsistent implementation, coupled with persistent technical interoperability challenges, limits the Travel Rule’s full potential. To unlock the next generation of payments, authorization and compliance must become built-in properties of the transaction, not optional layers added after the fact.

Notabene Flow: Stablecoin Payments with Authorization Built In

Enter Notabene Flow, the open stablecoin payments platform that makes authorization and Travel Rule compliance native to every payment.

Flow uses an addressless payments architecture: settlement addresses are revealed only after all Travel Rule information is exchanged and the required due diligence, consent, and compliance checks are completed. No address, no payment—and as a result, no possibility of unauthorized or non-compliant settlements.

Here’s how it works in a Pull Payment scenario:

1. Payment initiation – The merchant’s payment service provider (PSP) issues an invoice and payment request in Flow, automatically generating a Travel Rule message that includes payee data and transaction details.
2. Payment response – The payer selects their payment provider, who adds payer information to the Travel Rule record.
3. Dual authorization – Both counterparties conduct compliance and risk checks.
4. Settlement and disclosure – Once both counterparties have completed their compliance checks and authorized the transaction, the agent representing the payee sends an authorization message back to the agent representing the payer. This message includes the settlement address, which is revealed only at this stage. .

This model elevates pre-transaction authorization from a best practice to a built-in feature of every Flow payment. It also transforms the Travel Rule from an isolated compliance task into a requirement enforced by the design of the payment itself.

By revealing settlement addresses only after both sides complete authorization and exchange verified information, Flow makes it technically impossible to receive unvetted or non-compliant deposits. Institutions regain full control over inbound payment flows, strengthening their ability to apply consistent counterparty risk policies, prevent unwanted exposure, and enforce compliance at the protocol level.

Business-Ready Stablecoin Payments—Built for the Real World

Notabene Flow transforms stablecoins from fast settlement tools into a fully authorized, compliant, and business-ready payment network.

By combining the instant settlement of stablecoins with a pre-transaction authorization and compliance layer, Flow delivers what neither can achieve alone:

• Instant, borderless settlement without intermediaries
• Pre-transaction authorization, counterparty verification, and Travel Rule compliance
• End-to-end control and transparency across every transaction

With Flow, companies can finally unlock the efficiency of stablecoins — without sacrificing oversight, trust, or regulatory alignment.

This is the foundation for the future of B2B payments: instant, compliant, and ready for the real world.

Explore Notabene Flow and join the network.