Token price by contract address

Live price, market cap, 24h volume and 24h change for ERC-20 / SPL / other chain tokens looked up by CONTRACT ADDRESS on a named platform (ethereum, base, polygon-pos, arbitrum-one, optimistic-ethereum, binance-smart-chain, solana, avalanche, ...). Up to 25 contracts per call, any vs currency (default usd). The address-first sibling of crypto-price: use it when an agent holds a token address from a wallet, a DEX pair or a contract scan and has no coin id. Unknown addresses come back as null rather than failing the batch. Responses are cached in-process for 60 seconds.

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Input

Example output

{
  "source": "coingecko",
  "fetchedAt": "2026-08-22T13:20:00.000Z",
  "cached": false,
  "platform": "ethereum",
  "currency": "usd",
  "count": 1,
  "tokens": [
    {
      "contract": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "price": 0.999916,
      "marketCap": 73514026487.98,
      "volume24h": 26092767405.46,
      "change24hPct": 0.0212,
      "lastUpdated": "2026-08-22T13:15:40.000Z"
    }
  ]
}

Try it - see the 402 challenge (free)

curl -i "https://agent402.tools/api/coin-price-by-contract?platform=ethereum&contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&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/coin-price-by-contract?platform=ethereum&contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&currency=usd");

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