ToolVet
78trust / 100

S Svc 0b99078c E352 4927 9a9c 5f3f6b2e91fd

by FiatDock Marketplace in Onchain & crypto

x402 APIPassing, checked 2 h ago

Pay-per-call: Cross-Chain Capital Flow Analyzer

POST https://fiatdock.com/s/svc_0b99078c-e352-4927-9a9c-5f3f6b2e91fd

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
152 ms typical, 188 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

POST https://fiatdock.com/s/svc_0b99078c-e352-4927-9a9c-5f3f6b2e91fd

Each call costs $0.5 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_0b99078c-e352-4927-9a9c-5f3f6b2e91fd
content-type: application/json

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

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 $0.5.

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_0b99078c-e352-4927-9a9c-5f3f6b2e91fd' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"chain_flows"}}'

# 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_0b99078c-e352-4927-9a9c-5f3f6b2e91fd' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"chain_flows"}}' \
  | 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 $0.5 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.5" });
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 $0.5 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffiatdock.com%2Fs%2Fsvc_0b99078c-e352-4927-9a9c-5f3f6b2e91fd&method=POST
const res = await pay("https://fiatdock.com/s/svc_0b99078c-e352-4927-9a9c-5f3f6b2e91fd", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "id": 1,
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "arguments": {},
      "name": "chain_flows"
    }
  }),
});
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 $0.5 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.5"})
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_0b99078c-e352-4927-9a9c-5f3f6b2e91fd",
        json={
            "id": 1,
            "jsonrpc": "2.0",
            "method": "tools/call",
            "params": {
                "arguments": {},
                "name": "chain_flows",
            },
        },
    )
    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 agoPassed402169 ms$0.5
6 h agoPassed40240 ms$0.5
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