MET Norway Weather

Forecasts from the Norwegian Meteorological Institute (api.met.no), the engine behind Yr: global location forecasts, ocean forecasts, sun events, and Nordic air quality. Machine-payable per request.

Robinhood Chain

Offers

Offer	Endpoint	Price
Nordic air quality Air quality forecast for Norway. Pass ?lat=59.9&lon=10.7.	`/m/met-norway/airquality`	0.003 USDG
Location forecast Compact 9-day forecast for any point worldwide. Pass ?lat=59.91&lon=10.75.	`/m/met-norway/forecast`	0.003 USDG
Ocean forecast Wave height, sea current, and sea temperature. Pass ?lat=60.1&lon=5.0.	`/m/met-norway/ocean`	0.005 USDG
Sunrise and sunset Solar events for a date and place. Pass ?lat=59.9&lon=10.7&date=2026-09-16.	`/m/met-norway/sun`	0.002 USDG

Machine-readable: openapi.json with x-payment-info offers.

Try it live

Run the full MPP flow from your browser: catch the 402, sign the payment with your wallet, and watch it settle on-chain.

Pay with an agent

Any MPP or x402-compatible client works. With mppx, payment is automatic:

// x402 exact scheme (permit2) on Robinhood Chain
// 1. GET the endpoint, read the payment-required header (base64 JSON)
// 2. Sign PermitWitnessTransferFrom against Permit2 for the advertised offer
//    (spender = x402ExactPermit2Proxy, witness.to = merchant wallet)
// 3. Retry with the payment-signature header; settlement tx arrives
//    in the payment-response header
const res = await fetch('https://api.meshgateway.co/m/met-norway/airquality', {
  headers: { 'payment-signature': signedPaymentPayload },
})

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/met-norway/airquality
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …