Hadeswap

Digital-asset custody and operations platform trusted by 2,400+ institutions. Author of OTL, the Open Transaction Layer for compliant onchain transactions.

Samui provides an open-source wallet and development toolbox for Solana blockchain builders, offering integrated testing and debugging capabilities.

Infrastructure for verifiable applications on Solana. Ships an MCP server that serves docs-as-a-tool for building proof-backed apps.