Stable News is Lumx's weekly curation, dedicated to highlighting key movements in stablecoins, digital infrastructure, and global payments.
In this edition, highlights range from regulatory progress in Brazil to moves by big firms, like Klarna, Sony, and Revolut, expanding the race for digital payments infrastructure dominance. In the AI space, stablecoins start integrating natively into automated agents, further solidifying their role in networked economies.
Reading time: 06 minutes.
A look around Lumx
Lumx held a special webinar yesterday on new Central Bank and Federal Revenue guidelines, a direct technical session essential for organizations handling international payments, stablecoins, or cross-border flows.
The event featured Eduardo de Paiva Gomes (Paiva Gomes Advogados) and Thiago Barbosa Wanderley (Salles Nogueira Advogados) in two complementary sessions:
Impact of BCB Resolution No. 521 on international payments ecosystems.
Changes from the new DeCripto, covering reports, documentation, operational limits, and fiscal governance.
This marked another key step in building solid market knowledge, especially on regulation and compliance in the stablecoin ecosystem.
The full webinar is available below.
A new Stable Talks episode also launched, featuring Thomaz Teixeira, CEO of BRL1 Network, in a deep discussion on non-dollar-backed stablecoins and the strategic roles of Brazil and Mexico in this phase.
Key points covered:
Growing demand for on-chain BRL.
How Pix, open finance, and regulations shape tokenized real.
Financial engineering for functional stablecoins: yield, subsidies, governance.
Drex's role and the inflection point between CBDCs and private stablecoins.
Challenges of on-chain FX between BRL1, MXNB, and other regional assets.
The episode is now available.
Finally, a recommended read: State of Crypto 2025 by a16z. The report notes $46 trillion transacted in stablecoins over the past 12 months, with Latin America among the fastest-growing markets for real usage, payments, remittances, and wallets.
A material capturing the sector's exact moment. Link below.
Weekly News
Klarna Announces Its Own Stablecoin: KlarnaUSD
Klarna, a top European consumer fintech with a large US user base, announced KlarnaUSD, a fully dollar-backed stablecoin. Launch is set for 2026, built directly on Tempo, Stripe's payments blockchain.
The token targets everyday payments and international remittances, reinforcing that stablecoins have reached maturity in scale, speed, and cost.
Why it matters:
✅ One of the world's largest fintechs now competes directly in stablecoins.
✅ Stablecoins solidify as payments infrastructure, beyond just on-chain assets.
✅ Tempo ecosystem gains a global-scale issuer, boosting its relevance.
Revolut Integrates Polygon for Crypto Remittances and Stablecoin Payments
Revolut expanded its Polygon integration to enable remittances using USDC, USDT, and POL directly in the app—with a near-invisible user experience.
Since the initial December integration, the network has moved over $690 million via Polygon.
Why it matters:
✅ Europe's second-largest financial super-app now handles stablecoins natively.
✅ Polygon positions as preferred infrastructure for regulated fintechs.
✅ Rising stablecoin remittances pressure traditional institutions to cut costs.
European Union Prepares Euro Stablecoin Launch by 2026
Ten European banks announced Qivalis entity, initially authorized by the Dutch Central Bank, aiming to launch a MiCA-compliant euro stablecoin in late 2026.
This comes as the US GENIUS Act builds a strong framework for dollar stablecoins, intensifying digital monetary competition.
Why it matters:
✅ European banks coordinate an institutional stablecoin for the first time.
✅ EU acts to avoid a dollar-stablecoin-only market.
✅ MiCA and GENIUS shape global regulatory balance.
Identity + Stablecoins: x402 and Concordium Enable AI-Automated Payments
Coinbase's x402 protocol now integrates Concordium's identity system, letting AI agents make automated stablecoin payments with built-in age and identity verification.
This enables uses like:
Travel bookings.
Content purchases.
Restricted services.
Autonomous payments without human input.
Why it matters:
✅ Creates first compliant-native automated payments standard.
✅ AI operates economically on its own, needing verifiable rails.
✅ Strengthens the case that AI will be stablecoins' biggest user.
Sony Positions as Global Stablecoin Issuer
Sony took two decisive steps:
Launched Startale USD (USDSC), the institutional stablecoin for Soneium, its official L2.
Started US regulatory process for its own stablecoin under GENIUS Act.
USDSC becomes Soneium's standard settlement currency, built on M0 infrastructure used by MetaMask and Stripe. Meanwhile, Sony Bank advances for a US banking charter, enabling US-regulated issuance.
Why it matters:
✅ A top entertainment giant becomes a stablecoin issuer.
✅ PlayStation ecosystem opens for instant global payments.
✅ Japan cements its role as a stablecoin and digital yen hub.
From European super-apps to global issuers, EU banks to Sony, AI integrations to Brazilian guidelines, everything points one way:
Stablecoins turn invisible to users but central to liquidity, governance, and efficiency in modern financial systems.
As this shift accelerates, Lumx stays committed to building the operational layer letting companies transact in this new world with simplicity, security, and regulatory alignment.
See you next week.
Why are companies like Klarna and Sony integrating stablecoins into their platforms?
Global giants like Klarna and Sony are integrating stablecoins not as crypto experiments but as infrastructure for digital payments. This reflects a broader trend where stablecoins become embedded into existing business models — from buy-now-pay-later services to entertainment platforms — driven by the need for faster settlement, lower costs, and global reach without traditional banking friction.
How are AI agents starting to use stablecoins for automated payments?
Stablecoins are being natively integrated into AI agents that execute payments and transactions autonomously. Because stablecoins operate 24/7, are programmable, and offer instant digital settlement, they are the ideal payment rail for machine-to-machine transactions in the emerging agentic economy — where AI systems manage financial operations without human intervention.
What new regulatory guidelines did Brazil's Central Bank introduce for stablecoins?
Brazil's Central Bank introduced new guidelines through BCB Resolution No. 521, impacting international payments ecosystems that use stablecoins. The Federal Revenue also updated DeCripto requirements covering reporting, documentation, operational limits, and fiscal governance. These changes require companies handling cross-border stablecoin flows to adapt their compliance and operational frameworks.
What is the significance of non-dollar stablecoins like BRL1 for Latin America?
Non-dollar stablecoins like BRL1 (Brazilian Real) represent a growing demand for on-chain local currencies. They solve problems that USD stablecoins cannot — such as enabling native-currency operations, reducing forced FX conversions, and allowing local market access. For Latin America, where Pix and open finance are advancing rapidly, local-currency stablecoins bridge traditional financial infrastructure with blockchain efficiency.
