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About Osero
Osero is a stablecoin yield infrastructure provider. Its core product, Osero Earn, is an open-source TypeScript SDK that enables wallets, neobanks, custodians, and exchanges to offer the Sky Savings Rate (SSR) directly within their own interfaces. The SDK handles all chain-specific routing, contract calls, and transaction sequencing, allowing platforms to integrate yield features in hours without building DeFi expertise.
The market pain point Osero addresses is the concentration of stablecoin yield: over $300 billion in stablecoin value generates returns, but most of that yield flows to issuers rather than holders or fintech platforms. Osero solves this by packaging the Sky Savings Rate into a simple integration layer, letting end-users earn yield on their stablecoin balances without leaving their preferred wallet or exchange.
Osero's core narrative is "yield as infrastructure." Rather than building a consumer app, it positions itself as a neutral middleware layer. The SSR itself is backed by Sky Protocol's diversified collateral pool, which includes cash reserves and onchain money market positions, with a two-tier loss-absorption structure (Agent junior capital and Sky's backstop capital) designed to protect depositors.
In the past six months (March to September 2026), Osero has expanded its product documentation and developer resources, launched the Transparency SDK for real-time visibility into the assets, liquidity, and risk capital backing the SSR, and continued to grow its supported chain ecosystem (Ethereum Mainnet, Base, Arbitrum One, OP Mainnet, and Unichain). The project has also published educational content explaining its architecture and use cases for different platform types.
Osero, a stablecoin yield infrastructure project incubated by Stablewatch and Soter Labs, completed a $13.5M funding round led by Sky Ecosystem with Plasma co-leading. It launched three products: Earn (embeddable Sky Savings Rate), App (direct user access), and Foundry (on-chain yield products for asset managers). Foundry provides up to $2.5B in allocation capacity. Osero operates as a legally separate foundation, distinct from Stablewatch, which serves as core contributor. As an Agent within the Sky Ecosystem, it holds a dual mandate: distributing USDS and sUSDS to institutional and retail users, and allocating to institutional-grade assets to diversify the largest onchain balance sheet. These milestones mark its strategic positioning as a key distribution and origination layer for stablecoin yield, backed by a Basel III-inspired risk framework.
Over the past six months (2026-03-01 to 2026-09-01), Osero, a stablecoin yield infrastructure incubated by Stablewatch, announced a $13.5M raise led by the Sky Ecosystem, with participation from Plasma and angel investors. The funding supports risk capital for its first Foundry allocations. Osero launched three core products: Earn (an SDK for platforms to embed the Sky Savings Rate), App (a fintech-style interface for direct user access), and Foundry (an origination platform for asset managers with up to $2.5B allocation capacity). The company positions itself as an Agent within the Sky Ecosystem, with a dual mandate to distribute USDS/sUSDS to institutional and retail users and allocate to institutional-grade assets. Future focus includes expanding its access layer, scaling Foundry deployments under a Basel III-inspired risk framework, and deepening integration with Sky’s balance sheet to diversify the largest onchain treasury.
Piotr Saczuk (Founder, Twitter: https://x.com/stablecoin_p) is the founder of Osero. He also founded Stablewatch, the incubator behind Osero. No other co-founders or core executives are identified from the provided sources.