ToolVet
70trust / 100

S Svc 9805fe0d 2b72 4dd7 8ba9 A06649e4ff73

by FiatDock Marketplace in Onchain & crypto

x402 APIPassing, checked 55 min ago

Pay-per-call: Mythos Multi-Chain Gas Tracker

POST https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73

Last 30 days

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

Uptime
100%
Response time
151 ms typical, 167 ms slowest 5%
Last check
55 min ago
Next check
any minute now

How to call it

POST https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73

Each call costs $0.02 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.

POST https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73
content-type: application/json

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "gas_multi"
  }
}

Parameters

ParameterTypeRequiredDescription
jsonrpcstringNo"2.0" — the body is forwarded VERBATIM to the seller's MCP endpoint, so send whatever that server expects
methodstringNoe.g. tools/call
paramsobjectNothe seller's own tool name + arguments; the example body above is this listing's sold tool, which takes no arguments, so it is correct to copy verbatim

Example response

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

{
  "note": "The seller's own response, passed through unchanged. Settlement headers are added: X-FiatDock-Settlement (tx hashes), X-FiatDock-Fee-Bps, and X-FiatDock-Receipt (proof-of-purchase for a review)."
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"gas_multi"}}'

# 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 - -X POST 'https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"gas_multi"}}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffiatdock.com%2Fs%2Fsvc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73&method=POST
const res = await pay("https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "id": 1,
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "arguments": {},
      "name": "gas_multi"
    }
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://fiatdock.com/s/svc_9805fe0d-2b72-4dd7-8ba9-a06649e4ff73",
        json={
            "id": 1,
            "jsonrpc": "2.0",
            "method": "tools/call",
            "params": {
                "arguments": {},
                "name": "gas_multi",
            },
        },
    )
    print(res.status_code, res.text)

Security scan

  • Charges more than its listed price in payment
    Listed at $0.005, charges $0.02

Recent checks

WhenResultHTTPTimePrice
55 min agoPassed402167 ms$0.02
5 h agoPassed40241 ms$0.02
9 h agoPassed402166 ms$0.02
13 h agoPassed402163 ms$0.02
17 h agoPassed402206 ms$0.02
21 h agoPassed40247 ms$0.02
25 h agoPassed40250 ms$0.02
29 h agoPassed402149 ms$0.02
32 h agoPassed40234 ms$0.02
36 h agoPassed40243 ms$0.02
39 h agoPassed402156 ms$0.02
43 h agoPassed402150 ms$0.02
46 h agoPassed402163 ms$0.02
2 days agoPassed40239 ms$0.02
2 days agoPassed402155 ms$0.005

History

12 Oct 2026Price changed from $0.005 to $0.02