ToolVet
80trust / 100

Commodity Snapshot

by finanz.halowerk.com in Other

x402 APIPassing, checked 3 h ago

Day-ahead power prices for a European bidding zone from Energy-Charts, published by Fraunhofer ISE from Bundesnetzagentur SMARD data under CC BY 4.0 and therefore usable commercially with attribution. Returns the quarter-hourly or hourly curve with minimum, maximum, mean, the cheapest and the dearest hour, and how many intervals carry a negative price — the figures a load-shifting or battery decision actually turns on.

POST
https://finanz.halowerk.com/v1/commodity-snapshot
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
127 ms
164 ms slowest 5%
Last check
Passed
3 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://finanz.halowerk.com/v1/commodity-snapshot

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://finanz.halowerk.com/v1/commodity-snapshot
content-type: application/json

{
  "include_curve": false,
  "zone": "DE-LU"
}

Parameters

ParameterTypeRequiredDescription
include_curvebooleanNoReturn the full price curve as well as the statistics. Default: false.
zonestringNoEuropean bidding zone, e.g. DE-LU, FR, NL, AT, CH, PL. Default: "DE-LU".

Example response

The listing has no example response.

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://finanz.halowerk.com/v1/commodity-snapshot' \
  -H 'content-type: application/json' \
  --data-raw '{"include_curve":false,"zone":"DE-LU"}'

# 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://finanz.halowerk.com/v1/commodity-snapshot' \
  -H 'content-type: application/json' \
  --data-raw '{"include_curve":false,"zone":"DE-LU"}' \
  | 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%2Ffinanz.halowerk.com%2Fv1%2Fcommodity-snapshot&method=POST
const res = await pay("https://finanz.halowerk.com/v1/commodity-snapshot", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "include_curve": false,
    "zone": "DE-LU"
  }),
});
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://finanz.halowerk.com/v1/commodity-snapshot",
        json={
            "include_curve": False,
            "zone": "DE-LU",
        },
    )
    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
3 h agoPassed402105 ms$0.005
6 h agoPassed402111 ms$0.005
9 h agoPassed402103 ms$0.005
12 h agoPassed402127 ms$0.005
16 h agoPassed402113 ms$0.005
Show 10 older checks
19 h agoPassed402139 ms$0.005
22 h agoPassed40297 ms$0.005
25 h agoPassed402102 ms$0.005
30 h agoPassed40296 ms$0.005
35 h agoPassed402112 ms$0.005
40 h agoPassed40298 ms$0.005
45 h agoPassed402115 ms$0.005
2 days agoPassed402156 ms$0.005
2 days agoPassed402142 ms$0.005
3 days agoPassed402100 ms$0.005