Machine-Economy

Agentic Payments Protocols 2026: x402, AP2, Stripe, and the New Machine Economy

Complete technical guide to agentic payment protocols for prediction market agents in 2026. Deep dives into x402 (Coinbase), AP2, Stripe USDC, Visa, Mastercard, PayPal, and Coinbase Payments MCP — with Python code examples, protocol comparisons, and a multi-protocol payment router.