Coin profile · Coin Profile

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://agent402.tools/api/coin-profile", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://agent402.tools/api/coin-profile?coin=ethereum&currency=usd" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "cached": false,
  "categories": [
    "Smart Contract Platform",
    "Layer 1 (L1)"
  ],
  "currency": "usd",
  "description": "Ethereum is a global, open-source platform for decentralized applications...",
  "fetchedAt": "2026-08-22T13:20:00.000Z",
  "genesisDate": "2015-07-30",
  "hashingAlgorithm": "Ethash",
  "id": "ethereum",
  "links": {
    "explorers": [
      "https://etherscan.io/"
    ],
    "homepage": "https://www.ethereum.org/",
    "reddit": "https://www.reddit.com/r/ethereum",
    "repos": [
      "https://github.com/ethereum/go-ethereum"
    ],
    "twitter": "ethereum",
    "whitepaper": null
  },
  "market": {
    "ath": 4878.26,
    "athChangePct": -50.3,
    "athDate": "2021-11-10T14:24:19.604Z",
    "atl": 0.432979,
    "atlDate": "2015-10-20T00:00:00.000Z",
    "change1yPct": -12.9,
    "change24hPct": 1.2,
    "change30dPct": 8.4,
    "change7dPct": -3.1,
    "circulatingSupply": 120700000,
    "fullyDilutedValuation": 292876442962,
    "high24h": 2480.1,
    "lastUpdated": "2026-08-22T13:19:00.000Z",
    "low24h": 2390.2,
    "marketCap": 292876442962,
    "maxSupply": null,
    "price": 2424.5,
    "totalSupply": 120700000,
    "volume24h": 14200000000
  },
  "name": "Ethereum",
  "platforms": [
    {
      "contract": null,
      "decimals": null,
      "platform": "ethereum"
    }
  ],
  "rank": 2,
  "sentimentUpPct": 71.4,
  "source": "coingecko",
  "symbol": "ETH",
  "watchlistUsers": 2200000
}