CoinGecko spot price

Live spot price (and optional 24-hour change) for one or more coins from CoinGecko's public Simple Price endpoint. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, …). Defaults to USD; pass a `vsCurrency` to denominate in EUR, JPY, ETH, BTC, etc.

Input

Field	Type	Description
ids *	array	CoinGecko coin IDs (e.g. bitcoin, ethereum, solana). 1-25 entries.
vsCurrency	string	Quote currency (default usd). Supports any CoinGecko vs_currencies value.
include24hChange	boolean	Include 24h % change in the response (default false).

Example output

{
  "count": 2,
  "vsCurrency": "usd",
  "prices": [
    {
      "id": "bitcoin",
      "price": 67000.12,
      "change24h": null
    },
    {
      "id": "ethereum",
      "price": 3500.05,
      "change24h": null
    }
  ]
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/price-coingecko \
  -H "Content-Type: application/json" \
  -d '{"ids":["bitcoin","ethereum"]}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/price-coingecko", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "ids": [
      "bitcoin",
      "ethereum"
    ]
  }),
});

Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

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