(also referred to as or ) gives agents paid HTTP/API access without API keys. The user experience is intentionally Apple Pay-like: when the Pay MCP tool needs to satisfy a paid 402 challenge, it prepares the payment and asks for local approval, such as Touch ID on macOS, before any funds move. Stablecoins are the settlement rail under the hood, not the primary agent-facing workflow. The user's Pay account needs supported stablecoins such as USDC, USDT, or CASH; it does not need SOL for network fees because server-side fee payers handle transaction fees and setup costs. Use Pay for deliberate,…