Introduction
Stablecoins have become core infrastructure for crypto trading, cross-border transfers, and payment flows. As adoption accelerates, the market is seeing a clear trend: instead of competing only at the application layer, issuers and payment platforms are moving down the stack—launching dedicated Layer-1 blockchains that prioritize stablecoin use cases.
Within this emerging cohort, four networks stand out: Arc (Circle), Tempo (Stripe and Paradigm), Plasma, and Stable (a USDT-focused chain incubated via the Bitfinex/Tether orbit). Each takes a different approach—ranging from enterprise-grade payment rails to Bitcoin-anchored stablecoin settlement—but they share a common objective: make stablecoin transactions cheaper, faster, and more operationally predictable.
In the sections below, we review how these chains are positioned, what features they emphasize, why this trend is accelerating, and what it could mean for incumbent stablecoin hubs such as Ethereum and Tron.
Arc: Circle’s Enterprise-Grade Stablecoin L1
Arc is a new Layer-1 blockchain developed by Circle, the issuer of USDC, and is explicitly tailored to stablecoin finance. Circle’s positioning suggests Arc is intended to function as an institutional-grade network supporting stablecoin payments, foreign exchange (FX), and potentially tokenized capital markets activity. Unlike general-purpose blockchains, Arc’s architecture centers on enterprise requirements such as predictable costs, settlement certainty, and compliance-aligned privacy.
A defining design choice is that USDC is used as the gas token, allowing fees to be paid in a dollar-denominated unit rather than a volatile crypto asset. This directly addresses a common barrier for corporate users—namely, the operational friction of holding volatile tokens simply to pay for transactions.
Arc also prioritizes speed and deterministic finality, targeting sub-second settlement through a bespoke consensus design known as Malachite. For payments and financial transactions, rapid and irreversible confirmation is a key requirement, particularly when large values are being moved.
Another notable feature is a protocol-level FX engine. Arc aims to support institutional-style request-for-quote (RFQ) execution and continuous settlement between stablecoins and currencies on-chain—effectively embedding a foreign-exchange function into the network itself. This could be particularly relevant for global payments, where stablecoin-based FX conversion and settlement may become a central use case.
Arc further introduces selective privacy controls, allowing users to shield certain transaction details while still maintaining compliance pathways. Finally, Arc’s value proposition is amplified by native integration with Circle’s broader product suite, including USDC, EURC, tokenized cash-like instruments (e.g., USYC), Circle APIs, wallets, and CCTP for cross-chain transfers. Being EVM-compatible also lowers developer friction, making it easier to deploy Solidity-based applications and bridge liquidity to and from Ethereum.
Overall, Arc appears positioned as a vertically integrated “full-stack” play: Circle can combine issuance, compliance rails, payments tooling, and the underlying settlement network under one coordinated ecosystem.
Stable: A USDT-Centric Settlement Network
Stable is a dedicated Layer-1 being built around Tether’s USDT ecosystem, aiming to serve as specialized infrastructure for USDT-denominated payments and settlement. The project was incubated by Bitfinex and emerged publicly in mid-2025, alongside a reported $28 million seed round intended to accelerate development.
The network’s structure is built around a familiar design principle: USDT itself functions as the gas asset, removing the need for users to hold a separate volatile utility token. This fee model supports predictable cost accounting and simplifies onboarding—especially for users whose primary objective is dollar-denominated transfers.
Stable is also positioned around high-speed execution and near-instant finality, with targets in the sub-second range. Its roadmap signals an emphasis on enterprise-facing capabilities, including tooling such as transfer aggregation and guaranteed blockspace for large users. Given that the project is being shaped in a post–GENIUS Act environment, it is reasonable to expect stronger alignment with compliance requirements, especially if the broader strategy includes driving institutional adoption.
Strategically, Stable’s most direct goal is scale: expanding USDT payments from exchange transfers into mainstream settlement—from retail transactions to large-value corporate flows. The network’s messaging emphasizes addressing gaps in legacy payment rails, particularly the speed and reliability constraints that stablecoins are often used to bypass.
Plasma: Stablecoin Settlement via a Bitcoin-Linked Sidechain
Plasma approaches the stablecoin thesis from a different angle. It is positioned as a Bitcoin-linked sidechain that is also EVM-compatible, seeking to combine Bitcoin’s perceived security profile with Ethereum-style programmability. The project drew significant attention following a July 2025 public sale of its token XPL, which reportedly attracted $373 million in commitments, far exceeding its target.
Plasma’s headline proposition is fee-free stablecoin transfers, beginning with USDT. By removing transfer fees, Plasma directly targets a key friction point in stablecoin payments—even on low-cost networks, fees remain material at scale.
The project also signals substantial early liquidity, with expectations that it could reach $1 billion in stablecoins locked on the network at launch, potentially making it one of the fastest networks to reach that threshold. Strong backing from prominent investors and entities connected to the broader USDT ecosystem suggests that Plasma may be designed to compete directly for the stablecoin transfer flows currently dominated by Tron and Ethereum.
In practical terms, Plasma’s target market is large-scale settlement: exchange transfers, merchant payments, and institutional flows where fee elimination and speed can meaningfully improve cost efficiency.
Tempo: Stripe and Paradigm’s Payments-First Chain
Tempo is a forthcoming Layer-1 reportedly being developed by Stripe in partnership with Paradigm. It surfaced publicly in mid-2025 through reporting and hiring signals, and is described as a high-performance blockchain intended for payment use cases, with compatibility for Solidity-based smart contracts.
While technical specifics remain limited, the strategic motivation appears clear: full-stack ownership of payment settlement. Stripe currently operates at the payments layer but still depends on banks and external networks for settlement, including when stablecoins are involved. Owning the underlying blockchain allows Stripe to optimize throughput, finality, and fee policy for commerce-related flows.
Given Stripe’s scale, Tempo’s likely focus is stablecoin settlement across consumer and merchant networks. Cross-border commerce is a natural initial wedge: stablecoins can reduce the latency and cost of international settlement compared to card rails or bank wires. Tempo could also extend into B2B payments, treasury operations, and supplier settlement—areas where legacy systems such as SWIFT can be slow and operationally burdensome.
A key open question is whether Tempo will introduce a native token. Stripe may prefer a model where stablecoins serve as the gas asset to avoid volatility and simplify compliance, though token design has not been confirmed.
Implications for Ethereum and Tron
The emergence of stablecoin-focused Layer-1s raises a strategic question for incumbent networks that currently host a large share of stablecoin activity—particularly Ethereum, which anchors regulated stablecoins and DeFi composability, and Tron, which has become a dominant rail for USDT transfers due to low fees.
In the near term, incumbents are unlikely to be displaced quickly. Ethereum and Tron benefit from entrenched liquidity, exchange integration, wallet support, and network effects across both DeFi and centralized trading venues. New networks still need time to bootstrap users and routing.
Over a longer horizon, however, dedicated stablecoin chains could meaningfully shift market share—especially for high-volume, enterprise-oriented settlement. If Arc, Stable, Tempo, and Plasma succeed in offering lower friction, more predictable fees, and tighter integration with compliance and payment workflows, a growing portion of stablecoin payments may migrate away from general-purpose chains.
Tron appears particularly exposed on the USDT front if Tether-aligned networks introduce superior economics or deeper integration with fiat rails. Ethereum, meanwhile, may retain strategic relevance through composability: even if routine point-to-point payments move onto specialized rails, stablecoins may still flow back to Ethereum when users need access to complex DeFi interactions and multi-asset programmability.
In this scenario, stablecoin settlement could become more specialized—enterprise payments on purpose-built chains, and higher-order financial activity concentrated on composable smart contract ecosystems like Ethereum.
Disclaimer: The information provided herein does not constitute investment advice, financial advice, trading advice, or any other sort of advice, and should not be treated as such. All content set out below is for informational purposes only.