Fireblocks Flow: The Last Mile for Stablecoin Acceptance at Scale

The outcome is that PSPs can turn on stablecoin acceptance the way they would add a new fiat payment method—no custodial headaches, no new blockchain operations, and no fragmented integration work for each merchant.

The product was unveiled immediately at Money20/20 Europe in Amsterdam and is available to PSPs as an extension of the Fireblocks platform they may already use .

The Broader Infrastructure: Fireblocks' Payments Stack

Flow does not operate in a vacuum. It is the front-end acceptance layer sitting on top of a much larger payments infrastructure that has been assembled over several years.

Fireblocks Network for Payments

This is the connectivity backbone, a neutral network that unites over 2,400 exchanges, fintechs, banks, PSPs, and liquidity partners across more than 100 countries . It brings together local payment rails, blockchains, stablecoin issuers, on/off-ramp providers, FX venues, and remittance capabilities through a unified API .

The network supports stablecoin payment flows for cross-border treasury, payouts, remittance, and merchant settlement, with compliance screening—AML, KYT, and Travel Rule—embedded at the infrastructure level through integrations with firms like Notabene, Elliptic, and Chainalysis . More than 40 providers and 300 payment companies are already live, processing over $200 billion in stablecoin payments each month .

Payments Engine

Separate from the network, the Payments Engine is a modular orchestration layer that lets firms design custom payment workflows without code. It includes automation rules for rebalancing accounts, sweeping wallets, converting tokens, and distributing payouts. Pre-configured flow templates exist for merchant settlement, cross-border transfers, and treasury management .

Scale and Security

Fireblocks processes approximately 15% of global stablecoin volume and more than 35 million transactions per month, with over 300 banks and payment providers on the platform . The security architecture rests on MPC wallet infrastructure, enterprise-grade custody, and built-in compliance controls for sanctions screening and transaction monitoring .

The platform has secured more than $14 trillion in cumulative digital asset transactions since inception .

Why Stablecoin Payments Are Taking Off Now

Flow arrives at a moment when stablecoin payments are crossing from pilot phase to production across the financial industry.

Market Scale

Global stablecoin supply crossed $315 billion by the end of Q1 2026, with over 232 million holders worldwide . Stablecoin transactions now account for roughly half of the transaction volume on the Fireblocks platform alone . USDC market cap climbed roughly $20 billion in 2025, a 75% year-over-year increase . Major stablecoin payment infrastructure providers saw volume growth exceeding 120% in 2025 .

Regulatory Clarity Arrives

Clearer regulatory frameworks are removing the ambiguity that previously kept regulated financial institutions on the sidelines:

• European Union. Markets in Crypto-Assets Regulation (MiCA) is now fully in effect, creating a licensed framework for stablecoin issuance with 1:1 reserve requirements and clear asset categories (ART and EMT) . Euro-denominated stablecoins surged 1,200% in value and usage following MiCA's full implementation . A consortium of twelve major European banks—including BNP Paribas, BBVA, ING, and UniCredit—formed Qivalis to launch a MiCA-compliant euro stablecoin on Fireblocks infrastructure, targeting a launch in the second half of 2026 .
• United States. The GENIUS Act has passed and is entering the implementation phase, with the Treasury Department issuing an Advance Notice of Proposed Rulemaking. It establishes issuer licensing, reserve quality requirements, and federal oversight . The STABLE Act provides a parallel framework with additional consumer protection provisions .
• Hong Kong. The territory issued its first stablecoin licenses in 2026 under its new Stablecoin Bill, which passed in May 2025 and came into effect in August 2025. Out of 35-plus applicants, roughly 5% received licenses—a deliberately cautious, institutional-first approach .
• Other jurisdictions. Singapore's MAS regulations, Canada's draft stablecoin law (modeled on the GENIUS Act with 1:1 reserve backing and qualified custody requirements), and the U.K.'s emerging framework are further defining the global regulatory landscape .

Competitive Pressure

By the end of 2025, nearly every major payments company—MoneyGram, Stripe (via its Bridge acquisition), Thunes, Worldpay, Zepz, and others—had either launched a stablecoin solution or announced plans to do so . The FXC Intelligence Buyer's Guide for Stablecoin Payments Infrastructure, published in February 2026, named Fireblocks a Market Leader in the category .

What This Means for PSPs and Fintechs

Flow is effectively the commercial packaging of Fireblocks' existing infrastructure into a product designed specifically for PSPs and fintechs that want to offer crypto acceptance without running a crypto business.

For a PSP, the decision logic is straightforward: the network, custody, compliance, and liquidity plumbing already exist on the Fireblocks platform. Flow adds the last piece—a merchant-facing acceptance layer that sits inside the PSP's own product. The PSP controls the experience, the merchants control settlement currency, and Fireblocks runs the back end.

At a time when consumers are holding over $315 billion in stablecoins and regulators have finally written the rulebook, the question for PSPs is shifting from "why would we offer crypto payments?" to "how fast can we turn it on?"