Earthquake Monitor

Live global earthquake data from the US Geological Survey: search the full catalog or pull the significant-events feed. Machine-payable per request.

Robinhood Chain

Offers

Offer	Endpoint	Price
Search earthquakes Query the USGS catalog. Pass ?format=geojson&minmagnitude=5&limit=20, add &starttime=2026-08-01&endtime=2026-08-21 or a bounding box with &minlatitude=&maxlatitude=&minlongitude=&maxlongitude=.	`/m/earthquakes/search`	0.005 USDG
Significant this week GeoJSON feed of significant earthquakes from the past 7 days: magnitude, location, depth, and tsunami flag. No parameters required.	`/m/earthquakes/significant`	0.005 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/earthquakes/search', {
  headers: { 'payment-signature': signedPaymentPayload },
})

Or inspect the challenge yourself:

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