68trust / 100

Calc Mnihss

by magent in Other

x402 APIFailing, checked 43 min ago

Meyer/Lyden 2001 modified NIH Stroke Scale (mNIHSS): eleven caller-assigned NINDS-style integers. Drops LOC, facial palsy, limb ataxia, and dysarthria; collapses sensory to 0 = normal or 1 = abnormal; keeps left/right motor arm and leg (each 0-4). Sum 0-31. magent does not examine the patient. No total-score severity bands in Meyer 2001; later website cutoffs are not applied. Not Brott 1989 NIHSS, not a tPA order, not a diagnosis, and not a medical device.

POST

https://api.magentlab.com/api/calc/mnihss

Price: $0.007; per call in USDC
Uptime: 94.3%; last 30 days
Response time: 159 ms; 398 ms slowest 5%
Last check: Failed; 43 min ago, next any minute now

Run a free test call How to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 43 min ago: Timed out

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

How to call it

POST https://api.magentlab.com/api/calc/mnihss

Each call costs $0.007 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://api.magentlab.com/api/calc/mnihss
content-type: application/json

{
  "items": [
    {
      "best_gaze": 0,
      "best_language": 0,
      "best_visual": 0,
      "left_arm": 0,
      "left_leg": 0,
      "loc_commands": 0,
      "loc_questions": 0,
      "neglect": 0,
      "right_arm": 0,
      "right_leg": 0,
      "sensory": 0
    },
    {
      "best_gaze": 0,
      "best_language": 0,
      "best_visual": 0,
      "left_arm": 0,
      "left_leg": 0,
      "loc_commands": 0,
      "loc_questions": 0,
      "neglect": 0,
      "right_arm": 0,
      "right_leg": 0,
      "sensory": 0
    }
  ]
}

Parameters

Parameter	Type	Required	Description
`items`	array of object	Yes

Example response

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

Example response, 172 lines

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Meyer BC, Hemmen TM, Jackson CM, Lyden PD",
        "doi": "10.1161/01.str.32.6.1310",
        "id": "meyer-2001",
        "pmid": "11387492",
        "source": "Stroke. 2001;32(6):1310-1317",
        "title": "A modified National Institutes of Health Stroke Scale for use in stroke clinical trials: preliminary reliability and validity"
      },
      "components": [
        {
          "factor": "loc_questions",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "loc_commands",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "best_gaze",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "best_visual",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "left_arm",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "right_arm",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "left_leg",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "right_leg",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "sensory",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "best_language",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "neglect",
          "points": 0,
          "present": true,
          "value": 0
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "formula": "mnihss",
      "formula_expression": "mNIHSS = loc_questions (0-2) + loc_commands (0-2) + best_gaze (0-2) + best_visual (0-3) + left_arm (0-4) + right_arm (0-4) + left_leg (0-4) + right_leg (0-4) + sensory (0-1) + best_language (0-3) + neglect (0-2); Meyer/Lyden 2001 modified NIHSS (NINDS 11-item form; L/R motor; sensory collapsed to 0-1); total = sum; max 31; no published total-score severity bands",
      "max_score": 31,
      "score": 0
    },
    {
      "citation": {
        "authors": "Meyer BC, Hemmen TM, Jackson CM, Lyden PD",
        "doi": "10.1161/01.str.32.6.1310",
        "id": "meyer-2001",
        "pmid": "11387492",
        "source": "Stroke. 2001;32(6):1310-1317",
        "title": "A modified National Institutes of Health Stroke Scale for use in stroke clinical trials: preliminary reliability and validity"
      },
      "components": [
        {
          "factor": "loc_questions",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "loc_commands",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "best_gaze",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "best_visual",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "left_arm",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "right_arm",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "left_leg",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "right_leg",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "sensory",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "best_language",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "neglect",
          "points": 0,
          "present": true,
          "value": 0
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "formula": "mnihss",
      "formula_expression": "mNIHSS = loc_questions (0-2) + loc_commands (0-2) + best_gaze (0-2) + best_visual (0-3) + left_arm (0-4) + right_arm (0-4) + left_leg (0-4) + right_leg (0-4) + sensory (0-1) + best_language (0-3) + neglect (0-2); Meyer/Lyden 2001 modified NIHSS (NINDS 11-item form; L/R motor; sensory collapsed to 0-1); total = sum; max 31; no published total-score severity bands",
      "max_score": 31,
      "score": 0
    }
  ],
  "path": "/api/calc/mnihss"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.007.

curl: see the payment challenge

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/mnihss' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"best_gaze":0,"best_language":0,"best_visual":0,"left_arm":0,"left_leg":0,"loc_commands":0,"loc_questions":0,"neglect":0,"right_arm":0,"right_leg":0,"sensory":0},{"best_gaze":0,"best_language":0,"best_visual":0,"left_arm":0,"left_leg":0,"loc_commands":0,"loc_questions":0,"neglect":0,"right_arm":0,"right_leg":0,"sensory":0}]}'

# 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://api.magentlab.com/api/calc/mnihss' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"best_gaze":0,"best_language":0,"best_visual":0,"left_arm":0,"left_leg":0,"loc_commands":0,"loc_questions":0,"neglect":0,"right_arm":0,"right_leg":0,"sensory":0},{"best_gaze":0,"best_language":0,"best_visual":0,"left_arm":0,"left_leg":0,"loc_commands":0,"loc_questions":0,"neglect":0,"right_arm":0,"right_leg":0,"sensory":0}]}' \
  | 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 $0.007 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.007" });
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 $0.007 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Fmnihss&method=POST
const res = await pay("https://api.magentlab.com/api/calc/mnihss", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "best_gaze": 0,
        "best_language": 0,
        "best_visual": 0,
        "left_arm": 0,
        "left_leg": 0,
        "loc_commands": 0,
        "loc_questions": 0,
        "neglect": 0,
        "right_arm": 0,
        "right_leg": 0,
        "sensory": 0
      },
      {
        "best_gaze": 0,
        "best_language": 0,
        "best_visual": 0,
        "left_arm": 0,
        "left_leg": 0,
        "loc_commands": 0,
        "loc_questions": 0,
        "neglect": 0,
        "right_arm": 0,
        "right_leg": 0,
        "sensory": 0
      }
    ]
  }),
});
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 $0.007 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.007"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.magentlab.com/api/calc/mnihss",
        json={
            "items": [
                {
                    "best_gaze": 0,
                    "best_language": 0,
                    "best_visual": 0,
                    "left_arm": 0,
                    "left_leg": 0,
                    "loc_commands": 0,
                    "loc_questions": 0,
                    "neglect": 0,
                    "right_arm": 0,
                    "right_leg": 0,
                    "sensory": 0,
                },
                {
                    "best_gaze": 0,
                    "best_language": 0,
                    "best_visual": 0,
                    "left_arm": 0,
                    "left_leg": 0,
                    "loc_commands": 0,
                    "loc_questions": 0,
                    "neglect": 0,
                    "right_arm": 0,
                    "right_leg": 0,
                    "sensory": 0,
                },
            ],
        },
    )
    print(res.status_code, res.text)

Security scan

1 finding

Charges more than its listed price in payment
Listed at $0.005, charges $0.007

Recent checks

When	Result	HTTP	Time	Price
43 min ago	Timed out	-	-	-
5 h ago	Timed out	-	-	-
10 h ago	Passed	402	137 ms	$0.007
15 h ago	Passed	402	141 ms	$0.007
20 h ago	Passed	402	144 ms	$0.007

Show 10 older checks

24 h ago	Passed	402	152 ms	$0.007
29 h ago	Passed	402	371 ms	$0.007
33 h ago	Passed	402	258 ms	$0.007
38 h ago	Passed	402	234 ms	$0.007
42 h ago	Passed	402	242 ms	$0.007
46 h ago	Passed	402	233 ms	$0.007
2 days ago	Passed	402	231 ms	$0.007
2 days ago	Passed	402	149 ms	$0.007
2 days ago	Passed	402	167 ms	$0.007
3 days ago	Passed	402	158 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 68/ 100

Availability (30-day uptime)		28 / 30
Valid x402 challenge		15 / 15
Response time		10 / 10
Real paying agents (30 days)		5 / 15
Charges what it lists		0 / 10
Security scan		10 / 10
Verified owner		0 / 10

How the score works

Payment terms

Price: $0.007 per call
Listed at: $0.005 (charges more)
Token: USDC
Networks: Base
Pays to: 0x836B…9Ee2

Real usage

Paying agents: 2 in 30 days
Paid calls: 5 in 30 days
Last paid call: 4 days ago

Source: x402 Bazaar settlement data.

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Trust score

[![ToolVet trust score](https://toolvet.app/badge/calc-mnihss.svg)](https://toolvet.app/s/calc-mnihss)