
As stablecoins scale rapidly and move closer to mainstream
nance, the complexity of their underlying ecosystem has
grown in parallel. The stablecoin market is no longer limited
to issuers and users. It now spans a full-stack architecture
that includes interfaces, liquidity providers, custodians,
governance frameworks, and technical infrastructure
providers. Understanding this stack is important for
regulators, industry participants, and nancial system
coordinators alike, as it helps delineate responsibilities, risks,
and regulatory focus areas across the value chain.
At the top of this stack are Applications and Interfaces, such
as SlingMoney, Bitso, or DolarApp, which provide users
with direct access to stablecoin use cases, ranging from
remittances to savings products. These entities typically face
high regulatory scrutiny, particularly around licensing, AML/
KYC obligations, and consumer protection.
Infrastructure providers like BVNK and Fireblocks play a
foundational role, enabling stablecoin movement and
interoperability across platforms and jurisdictions. As
orchestrators of cross-chain activity, they must support
AML compliance infrastructure, Travel Rule integration,
and secure custody. While their role is primarily technical,
supporting applications or stablecoin issuers, their position
at the heart of transaction routing and interoperability
makes them critical to system integrity. As a result, they
often face medium regulatory scrutiny, either directly or
indirectly through oversight of their institutional clients.
The Liquidity Providers and Market Makers, including rms
like Wintermute and Flowdesk, maintain pricing efciency
and enable stablecoin-to-at conversion at scale. Their
exposure to market abuse risks and capital ow regulation
places them under a similar medium regulatory scrutiny.
At the core of the ecosystem are the Issuers, i.e. Tether,
Circle, Ripple, and others, who are responsible for minting,
redemption, reserve management, and peg stability. Given
their systemic importance and nancial responsibilities, these
entities face the highest levels of scrutiny focused on reserve
transparency, systemic thresholds, and prudential oversight.
Beneath these operational layers lie the blockchains, public
infrastructure such as Ethereum, Solana, and Base, which
ensure transaction nality and smart contract execution.
While essential to the ecosystem, they are subject to relatively
low regulatory scrutiny, though concerns around jurisdictional
control, transparency and compliance tooling persist.
Custodians and Trust Structures such as BNY Mellon
and Anchorage hold and secure reserves, offering legal
segregation and bankruptcy-remote mechanisms. These
functions draw high regulatory attention due to duciary
obligations and the need for robust audit frameworks. These
entities are already regulated within the traditional nancial
system, as they operate as licensed banks, trust companies,
or qualied custodians subject to stringent oversight across
jurisdictions.
Finally, Governance and Attestation Providers, ranging
from Chainlink to Deloitte, are emerging as key players
in ensuring real-time transparency and smart contract
integrity. Though less visible to end-users, they are integral
to operational assurance and systemic reliability. As
they primarily deliver services to regulated issuers and
custodians, their operations are increasingly subject to
indirect oversight through client compliance requirements,
especially in areas like audit quality, data attestation
standards, and smart contract liability.
This multi-layered structure highlights that regulating
stablecoins cannot be reduced to regulating issuers alone.
Each layer of the ecosystem, ranging from wallets and
applications to custodians, infrastructure providers, and
attestation services, carries distinct operational roles and
risk proles. As such, they require differentiated forms of
oversight: some rooted in nancial conduct and prudential
regulation, others focused on technological assurance,
operational resilience, and data integrity. To address this
complexity, policymakers may need to adopt a more holistic
supervisory approach. This may include not only direct
regulation of Stablecoin Issuers and Custodians, but also
indirect oversight through TPRM obligations imposed
on regulated entities for technology, infrastructure, and
professional service providers. In parallel, regulators may
develop guidance, minimum compliance standards, or
certication programs for key service providers supporting
stablecoin ecosystems.
1.2.4 Drivers and Inhibitors for Stablecoin
Adoption Across the World
Stablecoin adoption varies signicantly across regions,
inuenced by distinct economic needs and regulatory
concerns. The U.S. has become the most active market
for stablecoin innovation, with regulated offerings such as
USDC gaining traction across payment platforms, trading
venues, and treasury applications. Pilot projects increasingly
link stablecoins with cross-border payment use cases,
drawing participation from both Fintechs and traditional
nancial institutions.
In contrast, stablecoin adoption in the E.U. and U.K. has been
more measured. While there are regulated offerings such
as EUR CoinVertible and pilot projects around tokenized
commercial payments, authorities have generally taken
a cautious stance. The E.U.’s MiCA framework provides an
overarching regulatory structure but limits room for rapid
growth, and the Bank of England has proposed caps31
on stablecoin holdings for systemic payment systems
31 The Paypers, 2025
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