Usdp

Usdp is a private agentic wallet on Base aimed at the case where an AI agent has to pay. It applies zero-knowledge proofs and fully homomorphic encryption to balances, transaction amounts and the link to a main wallet, so onchain records do not point at a user's identity; the payment layer connects to the x402 protocol, letting any compatible endpoint trigger a payment with a single HTTP request, which is how an agent pays for API calls and compute. Accounts offer three privacy tiers: fully private, amount-hidden and standard.

The product also supports SMS payment, where the recipient needs no wallet because funds sit in escrow until claimed through a one-time link, adds biometric step-up for large transfers, and carries agent identity as ERC-8004 soulbound credentials with hard-coded spend caps. It is the settlement privacy layer of the agent economy, and unlike general privacy wallets it treats machine payment as the primary use case, designing interfaces around requests rather than pages.