ToolVet
78trust / 100

Nasdaq Index

by finance-api.kdlcfa.workers.dev in Markets & finance

x402 APIPassing, checked 1 h ago

Nasdaq Composite spot index quote, delayed, via Yahoo Finance

GET
https://finance-api.kdlcfa.workers.dev/nasdaq-index
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
700 ms
3.2 s slowest 5%
Last check
Passed
1 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://finance-api.kdlcfa.workers.dev/nasdaq-index

Each call costs $0.05 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://finance-api.kdlcfa.workers.dev/nasdaq-index

Example response

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

{
  "change": 59.4,
  "change_percent": 0.3,
  "date": "2026-08-03",
  "index": "IXIC",
  "name": "Nasdaq Composite",
  "previous_close": 19480.9,
  "value": 19540.3
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://finance-api.kdlcfa.workers.dev/nasdaq-index'

# 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://finance-api.kdlcfa.workers.dev/nasdaq-index' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffinance-api.kdlcfa.workers.dev%2Fnasdaq-index
const res = await pay("https://finance-api.kdlcfa.workers.dev/nasdaq-index");
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://finance-api.kdlcfa.workers.dev/nasdaq-index")
    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
1 h agoPassed402592 ms$0.05
6 h agoPassed402735 ms$0.05
10 h agoPassed402484 ms$0.05
14 h agoPassed402605 ms$0.05
18 h agoPassed4023.2 s$0.05
Show 2 older checks
22 h agoPassed402700 ms$0.05
33 h agoPassed402765 ms$0.05