Library
solana-keychain
Framework-agnostic Solana transaction signing with 13 provider backends — Memory, Privy, Turnkey, AWS KMS, Fireblocks, GCP KMS, Dfns, Para, CDP, Crossmint, Openfort, Utila, HashiCorp Vault. Unified SolanaSigner interface for TypeScript (@solana/keychain) and Rust. Security audited by Accretion 2026.
Tool
Solana Playground (live IDE)
Hosted SolPg at beta.solpg.io — create Native/Anchor/Seahorse projects, playground wallet, airdrop, build, deploy, test, and share project URLs. Still beta.