payx402-mu.vercel.app is a lightweight token-sale/payment API on the Base network that accepts USDC in exchange for PAYX tokens. It offers two endpoints — a real purchase (1 USDC → 5,000 PAYX) and a test purchase (0.01 USDC → 50 PAYX) — with per-call costs in the $0.01–$1.00 range. Tokens are distributed to the buyer's wallet asynchronously, making the service useful for low-cost micro-purchases, in-app checkout flows, and integration testing.