ToolVet
80trust / 100

S Svc B5dd18c2 C82a 4f67 B287 B90598a670a5

by FiatDock Marketplace in Onchain & crypto

x402 APIPassing, checked 4 h ago

Pay-per-call: true402 DeFi Yields — best APY across lending & staking pools

POST https://fiatdock.com/s/svc_b5dd18c2-c82a-4f67-b287-b90598a670a5

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
197 ms typical, 225 ms slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

POST https://fiatdock.com/s/svc_b5dd18c2-c82a-4f67-b287-b90598a670a5

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.

POST https://fiatdock.com/s/svc_b5dd18c2-c82a-4f67-b287-b90598a670a5
content-type: application/json

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

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 $0.005.

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_b5dd18c2-c82a-4f67-b287-b90598a670a5' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"defi_yields"}}'

# 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_b5dd18c2-c82a-4f67-b287-b90598a670a5' \
  -H 'content-type: application/json' \
  --data-raw '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{},"name":"defi_yields"}}' \
  | 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%2Ffiatdock.com%2Fs%2Fsvc_b5dd18c2-c82a-4f67-b287-b90598a670a5&method=POST
const res = await pay("https://fiatdock.com/s/svc_b5dd18c2-c82a-4f67-b287-b90598a670a5", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "id": 1,
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "arguments": {},
      "name": "defi_yields"
    }
  }),
});
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.post(
        "https://fiatdock.com/s/svc_b5dd18c2-c82a-4f67-b287-b90598a670a5",
        json={
            "id": 1,
            "jsonrpc": "2.0",
            "method": "tools/call",
            "params": {
                "arguments": {},
                "name": "defi_yields",
            },
        },
    )
    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
4 h agoPassed402217 ms$0.005
8 h agoPassed402172 ms$0.005
12 h agoPassed402197 ms$0.005
16 h agoPassed40247 ms$0.005
19 h agoPassed402265 ms$0.005
23 h agoPassed402199 ms$0.005
27 h agoPassed40236 ms$0.005
31 h agoPassed402225 ms$0.005