Wallet

Every Nuwa Client comes with a built-in wallet — a secure, identity-bound module designed to manage both crypto and fiat transactions in the agentic ecosystem.

What is a Crypto Wallet?

A crypto wallet is a tool that allows users to store and manage their cryptographic keys, enabling secure interactions with blockchain networks. It can send and receive digital assets, sign transactions, and verify ownership — all without relying on centralized intermediaries.

Nuwa’s wallet extends this concept by integrating deeply into the agent infrastructure, using decentralized identity (DID) standards to provide enhanced security, interoperability, and automation.

Payment Initiation

Nuwa wallets empower agents to:

• Trigger crypto or fiat payments
• Approve Cap purchases (agent capabilities)
• Manage payment sessions for complex, multi-step workflows

This enables seamless execution of agent tasks, eliminating the friction of manual payments.

Channel and Proxy Integration

The wallet seamlessly interfaces with:

• NIP-4 Payment Channels — for fast, low-cost, off-chain crypto micropayments between agents
• NIP-5 Fiat Proxies — to access traditional financial systems securely via standard APIs

These integrations abstract away the complexity of financial operations, enabling agents to operate across both Web3 and Web2 payment rails.

Secure Authorization with DIDs

All wallet operations are scoped under the agent’s Decentralized Identifier (DID). Transactions and requests are:

• Authenticated using cryptographic keys, as defined in NIP-2
• Fully auditable and under user control
• Delegatable to custodians via NIP-3, supporting Web2 login and wallet-free onboarding

This ensures robust security while maintaining a user-friendly experience.