ToolVet
75trust / 100

Market Brief

by dt0ur.online in Markets & finance

x402 APIPassing, checked 4 h ago

One-call market brief for a coin (BTC, ETH, SOL, HYPE and 45+ majors): USD price and 24h change, spot 24h high/low/volume and bid/ask, perpetual funding rate (APR), open interest and perp-vs-spot basis, the Crypto Fear & Greed index, and plain-language signals (crowded longs/shorts, big moves).

POST
https://dt0ur.online/api/market/brief
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
343 ms
544 ms slowest 5%
Last check
Passed
4 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 · Watch with other listings

How to call it

POST https://dt0ur.online/api/market/brief

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://dt0ur.online/api/market/brief
content-type: application/json

{
  "coin": "BTC"
}

Parameters

ParameterTypeRequiredDescription
coinstringYesCoin ticker, e.g. BTC One of: BTC, ETH, SOL, USDC, USDT, BNB, XRP, DOGE, ADA, TRX, AVAX, LINK.

Example response

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

Example response, 44 lines
{
  "change_24h_pct": -0.655,
  "coin": "BTC",
  "found": true,
  "perp": {
    "basis_vs_spot_pct": 0.043,
    "funding_apr_pct": 10.95,
    "funding_rate_1h": 0.0000125,
    "mark_price": 86265,
    "open_interest_usd": 4005608341,
    "oracle_price": 86240,
    "venue": "hyperliquid",
    "volume_24h_usd": 3067060684
  },
  "price_usd": 86206.29,
  "sentiment": {
    "classification": "Extreme Greed",
    "index": "crypto fear & greed (alternative.me)",
    "previous_value": 70,
    "updated_at": "2026-09-22T00:00:00.000Z",
    "value": 78
  },
  "signals": [
    "BTC perp: neutral funding, 10.95% APR",
    "market sentiment: Extreme Greed (78/100)"
  ],
  "sources": [
    "defillama",
    "coinbase",
    "hyperliquid",
    "alternative.me"
  ],
  "spot": {
    "ask": 86249.19,
    "bid": 86249.18,
    "high_24h": 86986.72,
    "last": 86228.22,
    "low_24h": 85059.28,
    "product": "BTC-USD",
    "venue": "coinbase",
    "volume_24h_usd": 811828553
  },
  "timestamp": "2026-09-22T20:13:25.306Z"
}

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://dt0ur.online/api/market/brief' \
  -H 'content-type: application/json' \
  --data-raw '{"coin":"BTC"}'

# 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://dt0ur.online/api/market/brief' \
  -H 'content-type: application/json' \
  --data-raw '{"coin":"BTC"}' \
  | 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%2Fdt0ur.online%2Fapi%2Fmarket%2Fbrief&method=POST
const res = await pay("https://dt0ur.online/api/market/brief", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "coin": "BTC"
  }),
});
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://dt0ur.online/api/market/brief",
        json={
            "coin": "BTC",
        },
    )
    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 agoPassed402411 ms$0.02
9 h agoPassed402384 ms$0.02
14 h agoPassed402209 ms$0.02
19 h agoPassed402343 ms$0.02
24 h agoPassed402403 ms$0.02
Show 10 older checks
28 h agoPassed402432 ms$0.02
33 h agoPassed402366 ms$0.02
37 h agoPassed402420 ms$0.02
42 h agoPassed402324 ms$0.02
46 h agoPassed402348 ms$0.02
2 days agoPassed402440 ms$0.02
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3 days agoPassed402198 ms$0.02
3 days agoPassed402335 ms$0.02