this proposal will upgrade mcp to support cryptographic key signing, and broadly allow wallets to securely authenticate to any agent server

I'm thrilled to announce that Dawn Labs has been acquired by MoonPay, and that we're launching Dawn CLI, our first consumer-facing product. Machine intelligence is changing the way finance operates. At Dawn, we kept returning to three theses: - agents will become the primary operators of money - trading will be democratized by general intelligence - finance will move increasingly on-chain Dawn Labs has been building the systems that let AI agents reason about markets, access financial rails, coordinate capital, and execute user-directed actions with speed, correctness, and trust. The CLI, launching today, is our trading-focused product, enabling non-technical users to describe trading strategies in plain English, automating user research, code generation, simulation, and live execution. Financial workflows have strict demands for latency, correctness, and trust. Building for that environment, we often found ourselves working at the frontier of agentic infrastructure: persistent sandboxes, virtual filesystems, fast tool-calling, context management, memory, custom harnesses, and more. My favorite part of this journey has been experimenting with these technology primitives that make foundation models usable to humans. MoonPay is the natural home for the next phase. It uniquely bridges traditional and crypto payment rails, and has the licensing, distribution, and products that enable finance for humans. Excited to work with Ivan and the MoonPay team, dream insanely large, and build the infrastructure for agents to efficiently and safely operate on financial rails.