MoonPay has released an open-source wallet standard allowing AI agents to hold funds and conduct cross-chain transactions securely. The system replaces fragmented wallet setups with a unified framework for key management and spending controls.
Private keys are stored in an encrypted local vault and signed in isolation, keeping them out of the agent’s runtime. Users can set spending limits and transaction policies to maintain control over automated activity.
The standard is modular, supporting storage, signing, policy enforcement, and multi-chain integration. It's available via GitHub, npm, and PyPI.
MoonPay said over a dozen firms contributed to the specification, including PayPal, OKX, Circle, and multiple blockchain foundations.
In parallel, BitGo launched a Model Context Protocol (MCP) server enabling AI tools to access its crypto infrastructure using natural language. This allows AI systems like ChatGPT to interact with wallets, staking, and transaction flows programmatically.
Other initiatives include Coinbase’s x402 protocol for HTTP-based stablecoin transfers and new tools from Visa and Stripe-backed Tempo enabling AI-driven payments.