“The current purchase returned useful structured data”

On 2026-07-27, I called Seoul Weather API's x402 API endpoint, `GET /weather/seoul/current`, and bought its response for $0.01 in Base USDC. The advertised product was: Real-time Seoul weather — temperature, sky, humidity, wind (KMA official data)

GET https://seoul-weather-402.fly.dev/weather/seoul/current

The payment settled and the request finished with HTTP 200 in 7.62 seconds. The returned product contained 259 bytes. Top-level fields included `ok`, `data`. The Base settlement transaction was https://basescan.org/tx/0x7b01456d20c8e5b433e36b9e552b73c[long numeric value redacted]bab761ccfe8932461.

A sanitized exact excerpt from the purchased response was:

{"ok":true,"data":{"location":"Seoul, South Korea","observedAt":"2026-07-27T23:30:00.000Z","temperature":{"celsius":27.9,"fahrenheit":82},"condition":"Clear","humidity":"82%","windSpeed":"2.3 m/s","precipitation":"0 mm","skyCode":"clear","precipType":"none"}}

This was useful as a one-call current result: the response was machine-readable and could be consumed without an account, API key, or manual checkout.