ToolVet
78trust / 100

Quantum Measurement Uncertainty

by Measurement uncertainty in Other

x402 APIPassing, checked 37 min ago

For agents reviewing shot-count results: return probabilities and binomial confidence intervals with the interval method and independence assumptions. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.

POST
https://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty
Price
$0.012
per call in USDC
Uptime
100%
last 30 days
Response time
162 ms
162 ms slowest 5%
Last check
Passed
37 min 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

POST https://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty

Each call costs $0.012002 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://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty
content-type: application/json

{
  "counts": [
    50,
    50
  ],
  "dataClass": "synthetic"
}

Parameters

ParameterTypeRequiredDescription
countsarrayYes
dataClassstringYes One of: public, synthetic.

Example response

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

Example response, 38 lines
{
  "data": {
    "chargedAmount": "12002",
    "inputHash": "sha256:5f869a55498f110d3eae1f72a39aab2e1306024a02b3adb7809080774…",
    "limitations": [
      "Public or synthetic inputs only. Caller labels are declarations,…"
    ],
    "productId": "quantum-measurement-uncertainty",
    "result": {
      "findings": {
        "coverage": "95% marginal per outcome; not simultaneous multinomial coverage",
        "intervals": [
          {
            "lower": 0.403831530366,
            "upper": 0.596168469634
          }
        ],
        "method": "Wilson-score-binomial",
        "probabilities": [
          0.5
        ],
        "shots": 100
      },
      "limitations": [
        "Public or synthetic research inputs only; no patient, personal g…"
      ],
      "methodVersion": "maha-science50/1.0.0",
      "numericPrecision": "IEEE754-double; finite outputs rounded to 12 significant digits"
    },
    "resultHash": "sha256:9b1abd247bf153cd881c62c54285d6cbf937277f61d5d60c7215a3fc9…",
    "sourceContractAmount": "12001",
    "version": "maha-legacy-adapter/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.012002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty' \
  -H 'content-type: application/json' \
  --data-raw '{"counts":[50,50],"dataClass":"synthetic"}'

# 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://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty' \
  -H 'content-type: application/json' \
  --data-raw '{"counts":[50,50],"dataClass":"synthetic"}' \
  | 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 $0.012002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.012002" });
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 $0.012002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fcompute%2Fquantum%2Fmeasurement-uncertainty&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "counts": [
      50,
      50
    ],
    "dataClass": "synthetic"
  }),
});
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 $0.012002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.012002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/compute/quantum/measurement-uncertainty",
        json={
            "counts": [
                50,
                50,
            ],
            "dataClass": "synthetic",
        },
    )
    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
37 min agoPassed402198 ms$0.012
11 h agoPassed402162 ms$0.012