ToolVet
77trust / 100

Metal XAUUSD

by mcp.blocksize.info in Markets & finance

x402 APIPassing, checked 3 h ago

Real-time precious metals market data from Blocksize Capital.

GET
https://mcp.blocksize.info/v1/metal/XAUUSD
Price
$0.005
per call in USDC
Uptime
96.0%
last 30 days
Response time
376 ms
512 ms slowest 5%
Last check
Passed
3 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://mcp.blocksize.info/v1/metal/XAUUSD

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://mcp.blocksize.info/v1/metal/XAUUSD

Example response

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

{
  "data": {
    "currency": "USD",
    "name": "",
    "price": 100,
    "source": "blocksize",
    "ticker": "XAUUSD",
    "timestamp": "2020-01-01T00:00:00Z"
  },
  "meta": {
    "example_only": true,
    "provider": "Blocksize Capital"
  },
  "status": "ok"
}

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://mcp.blocksize.info/v1/metal/XAUUSD'

# 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://mcp.blocksize.info/v1/metal/XAUUSD' \
  | 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%2Fmcp.blocksize.info%2Fv1%2Fmetal%2FXAUUSD
const res = await pay("https://mcp.blocksize.info/v1/metal/XAUUSD");
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://mcp.blocksize.info/v1/metal/XAUUSD")
    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
3 h agoPassed402277 ms$0.005
8 h agoPassed402317 ms$0.005
12 h agoPassed402386 ms$0.005
16 h agoPassed402348 ms$0.005
20 h agoPassed402303 ms$0.005
Show 10 older checks
24 h agoPassed402236 ms$0.005
28 h agoTimed out---
32 h agoPassed402390 ms$0.005
36 h agoPassed402429 ms$0.005
40 h agoPassed402361 ms$0.005
44 h agoPassed402348 ms$0.005
2 days agoPassed402385 ms$0.005
2 days agoPassed402410 ms$0.005
2 days agoPassed402376 ms$0.005
2 days agoPassed402339 ms$0.005