Embedded wallet platforms split on architecture: EOA-based (Privy, Dynamic, Turnkey, Coinbase) vs smart contract-default (Crossmint). The choice shapes security, portability, and recovery. Privy remains a strong baseline after Stripe's acquisition; alternatives offer different trade-offs in key management, signer flexibility, and feature breadth.
Four wallet infrastructure platforms offer different architectural approaches. Privy, Dynamic, Turnkey, and Coinbase's CDP default to EOA-based wallets with optional smart account features on EVM; Crossmint defaults to smart contract wallets with modular signers across all chains. The architectural choice matters: EOA wallets tie security to key management and make vendor switching costly, while smart contract wallets enable signer rotation and recovery without migrating assets. Privy remains most widely adopted after Stripe's June 2025 acquisition; Dynamic (acquired by Fireblocks in October 2025) emphasizes MPC-based split keys; Turnkey focuses on hardware-isolated enclaves with transparent security; Crossmint leads on smart wallet defaults and AI agent support.
