68trust / 100

Calc Ivt Contraindications

by magent in Other

x402 APIFailing, checked 4 h ago

Powers 2018 Table 6 Class III Harm IVT. contraindicated iff any of 15 caller flags: CT ICH; recent ischemic stroke, severe head trauma, or intracranial/spinal surgery; posttraumatic infarction; history of ICH; SAH presentation; GI malignancy or bleed 21d; coagulopathy; LMWH 24h; DOAC not cleared; GP IIb/IIIa; infective endocarditis; aortic arch dissection; intra-axial neoplasm. Not Class I eligibility, time window, or a dose. magent does not read CT or assay labs. Not a treatment order.

POST

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

Price: $0.007; per call in USDC
Uptime: 94.3%; last 30 days
Response time: 195 ms; 440 ms slowest 5%
Last check: Failed; 4 h ago, next any minute now

Run a free test call How to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 4 h ago: Timed out

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

How to call it

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

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/ivt_contraindications
content-type: application/json

{
  "items": [
    {
      "aortic_arch_dissection": false,
      "coagulopathy": false,
      "ct_ich": false,
      "doac_not_cleared": false,
      "gi_malignancy_or_gi_bleed_21d": false,
      "gp2b3a_concurrent": false,
      "history_ich": false,
      "infective_endocarditis": false,
      "intra_axial_neoplasm": false,
      "intracranial_spinal_surgery_within_3_mo": false,
      "ischemic_stroke_within_3_mo": false,
      "lmwh_treatment_dose_within_24h": false,
      "posttraumatic_infarction_in_hospital": false,
      "sah_presentation": false,
      "severe_head_trauma_within_3_mo": false
    },
    {
      "aortic_arch_dissection": false,
      "coagulopathy": false,
      "ct_ich": false,
      "doac_not_cleared": false,
      "gi_malignancy_or_gi_bleed_21d": false,
      "gp2b3a_concurrent": false,
      "history_ich": false,
      "infective_endocarditis": false,
      "intra_axial_neoplasm": false,
      "intracranial_spinal_surgery_within_3_mo": false,
      "ischemic_stroke_within_3_mo": false,
      "lmwh_treatment_dose_within_24h": false,
      "posttraumatic_infarction_in_hospital": false,
      "sah_presentation": false,
      "severe_head_trauma_within_3_mo": false
    }
  ]
}

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, 196 lines

{
  "count": 2,
  "items": [
    {
      "aortic_arch_dissection": false,
      "citation": {
        "authors": "Powers WJ, Rabinstein AA, Ackerson T, et al.",
        "doi": "10.1161/STR.0000000000000158",
        "id": "powers-2018",
        "pmid": "29133354",
        "source": "Stroke. 2018;49(3):e46-e110",
        "title": "2018 Guidelines for the Early Management of Patients With Acute Ischemic Stroke: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association"
      },
      "coagulopathy": false,
      "contraindicated": false,
      "criteria": [
        {
          "factor": "ct_ich",
          "met": false
        },
        {
          "factor": "ischemic_stroke_within_3_mo",
          "met": false
        },
        {
          "factor": "severe_head_trauma_within_3_mo",
          "met": false
        },
        {
          "factor": "posttraumatic_infarction_in_hospital",
          "met": false
        },
        {
          "factor": "intracranial_spinal_surgery_within_3_mo",
          "met": false
        },
        {
          "factor": "history_ich",
          "met": false
        },
        {
          "factor": "sah_presentation",
          "met": false
        },
        {
          "factor": "gi_malignancy_or_gi_bleed_21d",
          "met": false
        },
        {
          "factor": "coagulopathy",
          "met": false
        },
        {
          "factor": "lmwh_treatment_dose_within_24h",
          "met": false
        },
        {
          "factor": "doac_not_cleared",
          "met": false
        },
        {
          "factor": "gp2b3a_concurrent",
          "met": false
        },
        {
          "factor": "infective_endocarditis",
          "met": false
        },
        {
          "factor": "aortic_arch_dissection",
          "met": false
        },
        {
          "factor": "intra_axial_neoplasm",
          "met": false
        },
        {
          "factor": "contraindicated",
          "met": false
        }
      ],
      "ct_ich": false,
      "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.",
      "doac_not_cleared": false,
      "formula": "ivt_contraindications",
      "formula_expression": "contraindicated iff ct_ich or ischemic_stroke_within_3_mo or severe_head_trauma_within_3_mo or posttraumatic_infarction_in_hospital or intracranial_spinal_surgery_within_3_mo or history_ich or sah_presentation or gi_malignancy_or_gi_bleed_21d or coagulopathy or lmwh_treatment_dose_within_24h or doac_not_cleared or gp2b3a_concurrent or infective_endocarditis or aortic_arch_dissection or intra_axial_neoplasm (Powers 2018 Table 6 Class III: Harm). Not Class III No Benefit (unclear/wake-up onset windows, extensive CT hypoattenuation). Not Class I eligibility. Not 0-3h vs 3-4.5h. Not a dose. magent does not read CT, assay coagulation, or examine the patient. Not a treatment order",
      "gi_malignancy_or_gi_bleed_21d": false,
      "gp2b3a_concurrent": false,
      "history_ich": false,
      "infective_endocarditis": false,
      "intra_axial_neoplasm": false,
      "intracranial_spinal_surgery_within_3_mo": false,
      "ischemic_stroke_within_3_mo": false,
      "lmwh_treatment_dose_within_24h": false,
      "posttraumatic_infarction_in_hospital": false,
      "sah_presentation": false,
      "severe_head_trauma_within_3_mo": false
    },
    {
      "aortic_arch_dissection": false,
      "citation": {
        "authors": "Powers WJ, Rabinstein AA, Ackerson T, et al.",
        "doi": "10.1161/STR.0000000000000158",
        "id": "powers-2018",
        "pmid": "29133354",
        "source": "Stroke. 2018;49(3):e46-e110",
        "title": "2018 Guidelines for the Early Management of Patients With Acute Ischemic Stroke: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association"
      },
      "coagulopathy": false,
      "contraindicated": false,
      "criteria": [
        {
          "factor": "ct_ich",
          "met": false
        },
        {
          "factor": "ischemic_stroke_within_3_mo",
          "met": false
        },
        {
          "factor": "severe_head_trauma_within_3_mo",
          "met": false
        },
        {
          "factor": "posttraumatic_infarction_in_hospital",
          "met": false
        },
        {
          "factor": "intracranial_spinal_surgery_within_3_mo",
          "met": false
        },
        {
          "factor": "history_ich",
          "met": false
        },
        {
          "factor": "sah_presentation",
          "met": false
        },
        {
          "factor": "gi_malignancy_or_gi_bleed_21d",
          "met": false
        },
        {
          "factor": "coagulopathy",
          "met": false
        },
        {
          "factor": "lmwh_treatment_dose_within_24h",
          "met": false
        },
        {
          "factor": "doac_not_cleared",
          "met": false
        },
        {
          "factor": "gp2b3a_concurrent",
          "met": false
        },
        {
          "factor": "infective_endocarditis",
          "met": false
        },
        {
          "factor": "aortic_arch_dissection",
          "met": false
        },
        {
          "factor": "intra_axial_neoplasm",
          "met": false
        },
        {
          "factor": "contraindicated",
          "met": false
        }
      ],
      "ct_ich": false,
      "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.",
      "doac_not_cleared": false,
      "formula": "ivt_contraindications",
      "formula_expression": "contraindicated iff ct_ich or ischemic_stroke_within_3_mo or severe_head_trauma_within_3_mo or posttraumatic_infarction_in_hospital or intracranial_spinal_surgery_within_3_mo or history_ich or sah_presentation or gi_malignancy_or_gi_bleed_21d or coagulopathy or lmwh_treatment_dose_within_24h or doac_not_cleared or gp2b3a_concurrent or infective_endocarditis or aortic_arch_dissection or intra_axial_neoplasm (Powers 2018 Table 6 Class III: Harm). Not Class III No Benefit (unclear/wake-up onset windows, extensive CT hypoattenuation). Not Class I eligibility. Not 0-3h vs 3-4.5h. Not a dose. magent does not read CT, assay coagulation, or examine the patient. Not a treatment order",
      "gi_malignancy_or_gi_bleed_21d": false,
      "gp2b3a_concurrent": false,
      "history_ich": false,
      "infective_endocarditis": false,
      "intra_axial_neoplasm": false,
      "intracranial_spinal_surgery_within_3_mo": false,
      "ischemic_stroke_within_3_mo": false,
      "lmwh_treatment_dose_within_24h": false,
      "posttraumatic_infarction_in_hospital": false,
      "sah_presentation": false,
      "severe_head_trauma_within_3_mo": false
    }
  ],
  "path": "/api/calc/ivt_contraindications"
}

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/ivt_contraindications' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"aortic_arch_dissection":false,"coagulopathy":false,"ct_ich":false,"doac_not_cleared":false,"gi_malignancy_or_gi_bleed_21d":false,"gp2b3a_concurrent":false,"history_ich":false,"infective_endocarditis":false,"intra_axial_neoplasm":false,"intracranial_spinal_surgery_within_3_mo":false,"ischemic_stroke_within_3_mo":false,"lmwh_treatment_dose_within_24h":false,"posttraumatic_infarction_in_hospital":false,"sah_presentation":false,"severe_head_trauma_within_3_mo":false},{"aortic_arch_dissection":false,"coagulopathy":false,"ct_ich":false,"doac_not_cleared":false,"gi_malignancy_or_gi_bleed_21d":false,"gp2b3a_concurrent":false,"history_ich":false,"infective_endocarditis":false,"intra_axial_neoplasm":false,"intracranial_spinal_surgery_within_3_mo":false,"ischemic_stroke_within_3_mo":false,"lmwh_treatment_dose_within_24h":false,"posttraumatic_infarction_in_hospital":false,"sah_presentation":false,"severe_head_trauma_within_3_mo":false}]}'

# 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/ivt_contraindications' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"aortic_arch_dissection":false,"coagulopathy":false,"ct_ich":false,"doac_not_cleared":false,"gi_malignancy_or_gi_bleed_21d":false,"gp2b3a_concurrent":false,"history_ich":false,"infective_endocarditis":false,"intra_axial_neoplasm":false,"intracranial_spinal_surgery_within_3_mo":false,"ischemic_stroke_within_3_mo":false,"lmwh_treatment_dose_within_24h":false,"posttraumatic_infarction_in_hospital":false,"sah_presentation":false,"severe_head_trauma_within_3_mo":false},{"aortic_arch_dissection":false,"coagulopathy":false,"ct_ich":false,"doac_not_cleared":false,"gi_malignancy_or_gi_bleed_21d":false,"gp2b3a_concurrent":false,"history_ich":false,"infective_endocarditis":false,"intra_axial_neoplasm":false,"intracranial_spinal_surgery_within_3_mo":false,"ischemic_stroke_within_3_mo":false,"lmwh_treatment_dose_within_24h":false,"posttraumatic_infarction_in_hospital":false,"sah_presentation":false,"severe_head_trauma_within_3_mo":false}]}' \
  | 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%2Fivt_contraindications&method=POST
const res = await pay("https://api.magentlab.com/api/calc/ivt_contraindications", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "aortic_arch_dissection": false,
        "coagulopathy": false,
        "ct_ich": false,
        "doac_not_cleared": false,
        "gi_malignancy_or_gi_bleed_21d": false,
        "gp2b3a_concurrent": false,
        "history_ich": false,
        "infective_endocarditis": false,
        "intra_axial_neoplasm": false,
        "intracranial_spinal_surgery_within_3_mo": false,
        "ischemic_stroke_within_3_mo": false,
        "lmwh_treatment_dose_within_24h": false,
        "posttraumatic_infarction_in_hospital": false,
        "sah_presentation": false,
        "severe_head_trauma_within_3_mo": false
      },
      {
        "aortic_arch_dissection": false,
        "coagulopathy": false,
        "ct_ich": false,
        "doac_not_cleared": false,
        "gi_malignancy_or_gi_bleed_21d": false,
        "gp2b3a_concurrent": false,
        "history_ich": false,
        "infective_endocarditis": false,
        "intra_axial_neoplasm": false,
        "intracranial_spinal_surgery_within_3_mo": false,
        "ischemic_stroke_within_3_mo": false,
        "lmwh_treatment_dose_within_24h": false,
        "posttraumatic_infarction_in_hospital": false,
        "sah_presentation": false,
        "severe_head_trauma_within_3_mo": false
      }
    ]
  }),
});
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/ivt_contraindications",
        json={
            "items": [
                {
                    "aortic_arch_dissection": False,
                    "coagulopathy": False,
                    "ct_ich": False,
                    "doac_not_cleared": False,
                    "gi_malignancy_or_gi_bleed_21d": False,
                    "gp2b3a_concurrent": False,
                    "history_ich": False,
                    "infective_endocarditis": False,
                    "intra_axial_neoplasm": False,
                    "intracranial_spinal_surgery_within_3_mo": False,
                    "ischemic_stroke_within_3_mo": False,
                    "lmwh_treatment_dose_within_24h": False,
                    "posttraumatic_infarction_in_hospital": False,
                    "sah_presentation": False,
                    "severe_head_trauma_within_3_mo": False,
                },
                {
                    "aortic_arch_dissection": False,
                    "coagulopathy": False,
                    "ct_ich": False,
                    "doac_not_cleared": False,
                    "gi_malignancy_or_gi_bleed_21d": False,
                    "gp2b3a_concurrent": False,
                    "history_ich": False,
                    "infective_endocarditis": False,
                    "intra_axial_neoplasm": False,
                    "intracranial_spinal_surgery_within_3_mo": False,
                    "ischemic_stroke_within_3_mo": False,
                    "lmwh_treatment_dose_within_24h": False,
                    "posttraumatic_infarction_in_hospital": False,
                    "sah_presentation": False,
                    "severe_head_trauma_within_3_mo": False,
                },
            ],
        },
    )
    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
4 h ago	Timed out	-	-	-
9 h ago	Timed out	-	-	-
13 h ago	Passed	402	176 ms	$0.007
18 h ago	Passed	402	471 ms	$0.007
23 h ago	Passed	402	146 ms	$0.007

Show 10 older checks

27 h ago	Passed	402	339 ms	$0.007
32 h ago	Passed	402	252 ms	$0.007
36 h ago	Passed	402	157 ms	$0.007
41 h ago	Passed	402	353 ms	$0.007
45 h ago	Passed	402	255 ms	$0.007
2 days ago	Passed	402	155 ms	$0.007
2 days ago	Passed	402	157 ms	$0.007
2 days ago	Passed	402	321 ms	$0.007
3 days ago	Passed	402	189 ms	$0.007
3 days ago	Passed	402	187 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-ivt-contraindications.svg)](https://toolvet.app/s/calc-ivt-contraindications)