78trust / 100

S Svc 1d39a507 23e4 48fb B654 Bd1e994c8d64

by FiatDock Marketplace in Onchain & crypto

x402 APIPassing, checked 2 h ago

Pay-per-call: Crypto Price Feed — Multi-Asset Real-Time

POST
https://fiatdock.com/s/svc_1d39a507-23e4-48fb-b654-bd1e994c8d64
Price
$0.3
per call in USDC
Uptime
100%
last 30 days
Response time
168 ms
200 ms slowest 5%
Last check
Passed
2 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

POST https://fiatdock.com/s/svc_1d39a507-23e4-48fb-b654-bd1e994c8d64

Each call costs $0.3 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_1d39a507-23e4-48fb-b654-bd1e994c8d64
content-type: application/json

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

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 $0.3.

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_1d39a507-23e4-48fb-b654-bd1e994c8d64' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"crypto_price"}}'

# 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_1d39a507-23e4-48fb-b654-bd1e994c8d64' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"crypto_price"}}' \
  | 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 $0.3 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.3" });
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 $0.3 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffiatdock.com%2Fs%2Fsvc_1d39a507-23e4-48fb-b654-bd1e994c8d64&method=POST
const res = await pay("https://fiatdock.com/s/svc_1d39a507-23e4-48fb-b654-bd1e994c8d64", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "id": 1,
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "arguments": {},
      "name": "crypto_price"
    }
  }),
});
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 $0.3 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.3"})
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_1d39a507-23e4-48fb-b654-bd1e994c8d64",
        json={
            "id": 1,
            "jsonrpc": "2.0",
            "method": "tools/call",
            "params": {
                "arguments": {},
                "name": "crypto_price",
            },
        },
    )
    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
2 h agoPassed402194 ms$0.3
6 h agoPassed402168 ms$0.3
10 h agoPassed402127 ms$0.3
14 h agoPassed402180 ms$0.3
18 h agoPassed402179 ms$0.3
Show 10 older checks
22 h agoPassed402200 ms$0.3
26 h agoPassed402192 ms$0.3
29 h agoPassed402256 ms$0.3
33 h agoPassed402193 ms$0.3
37 h agoPassed402146 ms$0.3
40 h agoPassed402149 ms$0.3
44 h agoPassed402187 ms$0.3
2 days agoPassed402181 ms$0.3
2 days agoPassed402161 ms$0.3
2 days agoPassed40272 ms$0.3