ToolVet
63trust / 100

Impact Scales

by Space Objects in Other

x402 APIPassing, checked 3 h ago

Torino scale levels explained, or the Palermo scale value from impact probability, energy in megatons and years until impact.

GET
https://space-objects.x402tookit.com/impact-scales
Price
$0.02
per call in USDC
Uptime
70.0%
last 30 days
Response time
532 ms
1.5 s slowest 5%
Last check
Passed
3 h ago, next in 2 h

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://space-objects.x402tookit.com/impact-scales

Each call costs $0.02 in USDC on Polygon, 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://space-objects.x402tookit.com/impact-scales?energyMt=1400&probability=0.0005&yearsUntil=160

Parameters

ParameterTypeRequiredDescription
energyMtnumberNoImpact energy in megatons TNT, 0.001 to 1e8 (Palermo mode)
probabilitynumberNoImpact probability, above 0 up to 1 (Palermo mode)
torinointegerNoTorino level 0 to 10 to explain (omit to list all)
yearsUntilnumberNoYears until the possible impact, 0.01 to 1000 (Palermo mode)

Example response

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

{
  "asOf": "2026-10-11T08:41:44.382Z",
  "backgroundProbability": 0.0146,
  "backgroundRatePerYear": 0.00009125,
  "band": "Merits careful monitoring",
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "energyMegatons": 1400,
  "notChecked": [
    "the real Torino rating of any object (see /impact-risk-object for JPL's value; Torino also needs the collision energy and time chart, which this does not decide)",
    "orbit uncertainty",
    "…1 more"
  ],
  "palermoScale": -1.465,
  "probability": 0.0005,
  "ratioToBackground": 0.0342,
  "reasons": [
    "Palermo scale = log10( p / (fB * T) ) with fB = 0.03 * E^-0.8 per year (E in megatons) as the background impact rate (Chesley et al. 2002).",
    "Below -2: no likely consequences; -2 to 0: merits careful monitoring; above 0: merits concern."
  ],
  "source": "computed locally",
  "summary": "Impact probability 0.0005, 1400 Mt, in 160 years gives Palermo -1.47: merits careful monitoring. The background chance of an equal or larger impact in that time is 0.0146.",
  "verdict": "PALERMO_MINUS_2_TO_0",
  "yearsUntil": 160
}

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 'https://space-objects.x402tookit.com/impact-scales?energyMt=1400&probability=0.0005&yearsUntil=160'

# 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://space-objects.x402tookit.com/impact-scales?energyMt=1400&probability=0.0005&yearsUntil=160' \
  | 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%2Fspace-objects.x402tookit.com%2Fimpact-scales
const res = await pay("https://space-objects.x402tookit.com/impact-scales?energyMt=1400&probability=0.0005&yearsUntil=160");
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.get("https://space-objects.x402tookit.com/impact-scales?energyMt=1400&probability=0.0005&yearsUntil=160")
    print(res.status_code, res.text)

Security scan

No findings

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