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Robinhood Chain
Nobel Prizes
The official Nobel Prize dataset: every prize and laureate since 1901 with motivations, categories, and affiliations. Machine-payable per request.
Offers
| Offer | Endpoint | Price |
|---|---|---|
Laureates Laureate records with birth data, affiliations, and prize history. Pass ?name=curie, or filter with ?birthCountry=Japan&limit=10. | /m/nobel/laureates | 0.005 USDG |
Prizes Nobel prizes with laureates and motivations. Pass ?nobelPrizeYear=2024, filter with &nobelPrizeCategory=phy|che|eco|lit|pea|med. | /m/nobel/prizes | 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.
Sign in with your wallet to try an endpoint straight from the browser.
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/nobel/laureates', {
headers: { 'payment-signature': signedPaymentPayload },
})Or inspect the challenge yourself:
curl -i https://api.meshgateway.co/m/nobel/laureates # HTTP/1.1 402 Payment Required # WWW-Authenticate: Payment id="…", method="evm", intent="charge", …