Stackup is a suite of open-source developer tools for building user-friendly blockchain products. It starts with ERC-4337 infrastructure.
Winter offers an embeddable checkout widget for businesses & NFT projects to sell NFTs through a credit card
A blockchain empowered alternative to Firebase. Cedalio starts with a Decentralized Storage GraphQL Gateway, you can use Cedalio as a decentralized database for applications that speak GraphQL.