Theya

Theya is the world’s simplest Bitcoin self-custody app for users who find crypto exchanges risky and hardware wallets overwhelming.

atsuma is a developer tool for building applications on top of real-time blockchain data.

Y Combinator

Stackup is a suite of open-source developer tools for building user-friendly blockchain products. It starts with ERC-4337 infrastructure.

Y Combinator

Minecraft meets Discord

Y Combinator