Paid ($0.01 USDC via x402). Most recent Polymarket feed item — mover, whale entry (with calibration), or predetermined s

Paid ($0.01 USDC via x402). Most recent Polymarket feed item — mover, whale entry (with calibration), or predetermined signal. Same shape as /v1/signal without ?index. Free index poll: GET /v1/index; free shape preview: GET /v1/sample. Compute-first / settle-after — you are never charged for an error.