WalletKit

WalletKit is a developer platform that abstracts away the complexities of blockchain tech and provides simple HTTP APIs.

Protocol Labs is an open-source research, development, and deployment laboratory. It's the company behind IPFS, Filecoin, libp2p, and many more.

Y Combinator

Zoltar is an agnostic payment infrastructure for international businesses.

Y Combinator

Listia is a new kind of auction marketplace for giving and getting free stuff.

Y Combinator