A machine-reachable payments server so an agent can move stablecoins without a human clicking a wallet UI.
What it does
Coinbase launched a Payments MCP server in September 2025 that lets AI agents conduct autonomous on-chain transactions using stablecoins — a primitive for agentic treasury, not a retail banking app.
Architecture
Model Context Protocol tool surface → wallet/policy engine → on-chain settlement. Policy is the product.
Evidence
Open Banking Tracker, 2 May 2026.
Caveat
On-chain autonomy inherits key-management, sanctions, and travel-rule obligations. “Autonomous” does not mean ungoverned.