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.
npm Package
npm install @solana/keychainRust Crate
cargo add solana-keychain