Crypto global market

Global crypto market snapshot: total market cap, total 24h volume, BTC dominance, ETH dominance, active coin count, active exchange count, and 24h market-cap change %. Returned in a chosen vs_currency (default usd). Backed by CoinGecko /global.

Input

Field	Type	Description
currency	string	vs_currency for cap/volume (default: usd)

Example output

{
  "currency": "usd",
  "totalMarketCap": 2410000000000,
  "totalVolume24h": 92000000000,
  "marketCapChange24hPct": 1.23,
  "btcDominancePct": 54.8,
  "ethDominancePct": 17.6,
  "activeCryptocurrencies": 12450,
  "markets": 952,
  "updatedAt": "2026-06-20T00:30:00Z"
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/crypto-global?currency=usd"

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/crypto-global?currency=usd");

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

Part of these workflows

This tool is one step in a curated multi-tool workflow — agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• Crypto research — Pull live price, market structure, OHLC history, trending status, global market context, and recent news for a single coin in one pass.

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