We are contributing to developing a collection of tools, scripts, and contracts for the Flow Blockchain, called Flow Hydraulics:
Flow Wallet API: Service for custodial wallets on Flow blockchain
OnChainMultiSig contract designed to address the need for multiple signature to authorise transactions without time constraint or gas balance.
Flow Pack Distribution Service: Service for distributing and managing Flow NFT Packs.
FCL Wallet Adapter: Wallet authentication and authorization support for your FCL-based applications on Flow.