ToolVet
80trust / 100

Coin Price By Contract

by Token price by contract address in Onchain & crypto

x402 APIPassing, checked 1 h ago

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.

GET
https://agent402.tools/api/coin-price-by-contract
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
264 ms
353 ms slowest 5%
Last check
Passed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

GET https://agent402.tools/api/coin-price-by-contract

Each call costs $0.005 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://agent402.tools/api/coin-price-by-contract?contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&currency=usd&platform=ethereum

Parameters

ParameterTypeRequiredDescription
contractsstringYesComma-separated contract addresses (max 25). Also accepts an array.
currencystringNovs currency (default usd): fiat (usd, eur) or crypto (btc, eth).
platformstringYesAsset platform id: ethereum, base, polygon-pos, arbitrum-one, optimistic-ethereum, binance-smart-chain, solana, avalanche, ...

Example response

The provider's example. We can't check it without paying.

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

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://agent402.tools/api/coin-price-by-contract?contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&currency=usd&platform=ethereum'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://agent402.tools/api/coin-price-by-contract?contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&currency=usd&platform=ethereum' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fcoin-price-by-contract
const res = await pay("https://agent402.tools/api/coin-price-by-contract?contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&currency=usd&platform=ethereum");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://agent402.tools/api/coin-price-by-contract?contracts=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&currency=usd&platform=ethereum")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
1 h agoPassed402196 ms$0.005
5 h agoPassed402264 ms$0.005
10 h agoPassed402264 ms$0.005
14 h agoPassed402189 ms$0.005
18 h agoPassed402336 ms$0.005
Show 10 older checks
22 h agoPassed402334 ms$0.005
27 h agoPassed402269 ms$0.005
31 h agoPassed402253 ms$0.005
35 h agoPassed402270 ms$0.005
39 h agoPassed402287 ms$0.005
42 h agoPassed402423 ms$0.005
46 h agoPassed402353 ms$0.005
2 days agoPassed402264 ms$0.005
2 days agoPassed402329 ms$0.005
2 days agoPassed402274 ms$0.005