Osero raises $13.5M to route stablecoin yield back to holders — not just issuers!

Osero, a stablecoin yield infrastructure project incubated by Stablewatch and Soter Labs, has closed a $13.5 million raise led by Sky Ecosystem and co-led by Plasma. The round drew angel investors from USDT0, Maple, RedStone, Kairos Research and others — a who's-who of DeFi yield infrastructure.

The thesis is structural: stablecoins have grown past $300 billion in total supply, but the yield generated by the assets backing them still flows almost entirely to issuers like Circle and Tether. Osero is building the plumbing to change that. Its three products — Earn, App, and Foundry — let wallets, neobanks, custodians, and asset managers tap the Sky Savings Rate without managing the underlying infrastructure themselves. Earn integrates in roughly 10 lines of code.

Foundry is the institutional play: up to $2.5 billion in allocation capacity for anchor funding, swap liquidity and lending…