runwayoracle.com v3 mdw-edge

https://runwayoracle.com/v1/oracle/v3/mdw-edge

answers 402

Chicago weather forecast API: live temperature nowcast and daily high forecast for Chicago Midway (KMDW), with calibrated probability the temperature ends above/below any Fahrenheit strike. KMDW is the official settlement station for Kalshi KXHIGHCHI and Polymarket Chicago daily high temperature prediction markets. Built for AI agents trading weather prediction markets or needing real-time weather

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.05
Network: base
Pay to: 0xCc42Ed39a06b6cF3f484307eF76B88Bf56Fb305f
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: GET
Response latency: 81 ms
Payment options: 1 usable of 1
Last checked: 2026-08-15T14:22:50.423Z (3d ago)
Category: ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Frunwayoracle.com%2Fv1%2Foracle%2Fv3%2Fmdw-edge"