Stackup is a suite of open-source developer tools for building user-friendly blockchain products. It starts with ERC-4337 infrastructure.
Quantstamp’s mission is to secure the decentralized internet, and has protected over $200B in digital asset risk from hackers.
SolStar makes it possible for anyone to use crypto, starting with a Discord integration. It's a platform for creating and organizing token-powered communities powered by Solana.