Sindri · PhysicalConstants

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://x402.outpimp.com/physicalConstants", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "constant": "speedOfLight"
  }),
});
const data = await res.json();

curl -X POST \
  "https://x402.outpimp.com/physicalConstants" \
  -H "Content-Type: application/json" \
  -d '{"constant":"speedOfLight"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "data": {
    "description": "Speed of light in vacuum",
    "params": {
      "constant": "speedOfLight"
    },
    "unit": "m/s",
    "value": 299792458
  },
  "ok": true
}