Den: End-to-end wallet for teams

Den is a digital asset wallet platform for teams that manages treasury operations, payments, stablecoin and RWA issuance, and embedded customer wallets. Its marketing page says every transaction passes three independent security layers: validation on the mobile app or SDK signer, a network-isolated Guardian co-signer, and onchain smart contracts. The FAQ says the contracts are open-source and were independently audited by Certora and yAudit, and that Den supports EVM networks and offers Den Cloud, Your Cloud, or on-premise deployment. The page also states that Den sponsors network fees so teams do not need gas balances for each account.