68trust / 100

Calc Improve Vte

x402 APIFailing, checked 2 h ago

Spyropoulos 2011 7-factor associative IMPROVE VTE score during hospitalization: previous VTE 3, known thrombophilia 2, lower-limb paralysis 2, current cancer 2, immobilized >=7 days 1, ICU/CCU stay 1, age >60 1. Max 12. Bands: 0-1; 2-3 (observed VTE 1.5%); >=4 (observed VTE 5.7%). Not a VTE diagnosis or prophylaxis order. Not the 4-factor admission predictive model. Not IMPROVEDD. magent does not examine the patient.

POST

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

Price: $0.007; per call in USDC
Uptime: 94.1%; last 30 days
Response time: 239 ms; 532 ms slowest 5%
Last check: Failed; 2 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 2 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/improve_vte

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/improve_vte
content-type: application/json

{
  "items": [
    {
      "age": 50,
      "current_cancer": false,
      "icu_ccu_stay": false,
      "immobilized_ge_7_days": false,
      "known_thrombophilia": false,
      "lower_limb_paralysis": false,
      "previous_vte": false
    },
    {
      "age": 50,
      "current_cancer": false,
      "icu_ccu_stay": false,
      "immobilized_ge_7_days": false,
      "known_thrombophilia": false,
      "lower_limb_paralysis": false,
      "previous_vte": 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, 116 lines

{
  "count": 2,
  "items": [
    {
      "age_years": 50,
      "citation": {
        "authors": "Spyropoulos AC, Anderson FA Jr, FitzGerald G, Decousus H, Pini M, Chong BH, Zotz RB, Bergmann JF, Tapson VF, Froehlich JB, Monreal M, Merli GJ, Pavanello R, Turpie AGG, Nakamura M, Piovella F, Kakkar AK, Spencer FA, IMPROVE Investigators",
        "doi": "10.1378/chest.10-1944",
        "id": "spyropoulos-2011",
        "pmid": "21436241",
        "source": "Chest. 2011;140(3):706-714",
        "title": "Predictive and associative models to identify hospitalized medical patients at risk for VTE"
      },
      "components": [
        {
          "factor": "previous_vte",
          "points": 0,
          "present": false
        },
        {
          "factor": "known_thrombophilia",
          "points": 0,
          "present": false
        },
        {
          "factor": "lower_limb_paralysis",
          "points": 0,
          "present": false
        },
        {
          "factor": "current_cancer",
          "points": 0,
          "present": false
        },
        {
          "factor": "immobilized_ge_7_days",
          "points": 0,
          "present": false
        },
        {
          "factor": "icu_ccu_stay",
          "points": 0,
          "present": false
        },
        {
          "factor": "age_gt_60",
          "points": 0,
          "present": false,
          "value": 50
        }
      ],
      "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": "improve_vte",
      "formula_expression": "IMPROVE VTE (Spyropoulos 2011 7-factor associative during hospitalization) = previous_vte (3) + known_thrombophilia (2) + lower_limb_paralysis (2) + current_cancer (2) + immobilized_ge_7_days (1) + icu_ccu_stay (1) + age>60 (1); max 12; 0-1, 2-3 (observed VTE 1.5%), >=4 (observed VTE 5.7%); not the 4-factor admission predictive model; not IMPROVEDD",
      "max_score": 12,
      "score": 0,
      "vte_band": "0-1"
    },
    {
      "age_years": 50,
      "citation": {
        "authors": "Spyropoulos AC, Anderson FA Jr, FitzGerald G, Decousus H, Pini M, Chong BH, Zotz RB, Bergmann JF, Tapson VF, Froehlich JB, Monreal M, Merli GJ, Pavanello R, Turpie AGG, Nakamura M, Piovella F, Kakkar AK, Spencer FA, IMPROVE Investigators",
        "doi": "10.1378/chest.10-1944",
        "id": "spyropoulos-2011",
        "pmid": "21436241",
        "source": "Chest. 2011;140(3):706-714",
        "title": "Predictive and associative models to identify hospitalized medical patients at risk for VTE"
      },
      "components": [
        {
          "factor": "previous_vte",
          "points": 0,
          "present": false
        },
        {
          "factor": "known_thrombophilia",
          "points": 0,
          "present": false
        },
        {
          "factor": "lower_limb_paralysis",
          "points": 0,
          "present": false
        },
        {
          "factor": "current_cancer",
          "points": 0,
          "present": false
        },
        {
          "factor": "immobilized_ge_7_days",
          "points": 0,
          "present": false
        },
        {
          "factor": "icu_ccu_stay",
          "points": 0,
          "present": false
        },
        {
          "factor": "age_gt_60",
          "points": 0,
          "present": false,
          "value": 50
        }
      ],
      "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": "improve_vte",
      "formula_expression": "IMPROVE VTE (Spyropoulos 2011 7-factor associative during hospitalization) = previous_vte (3) + known_thrombophilia (2) + lower_limb_paralysis (2) + current_cancer (2) + immobilized_ge_7_days (1) + icu_ccu_stay (1) + age>60 (1); max 12; 0-1, 2-3 (observed VTE 1.5%), >=4 (observed VTE 5.7%); not the 4-factor admission predictive model; not IMPROVEDD",
      "max_score": 12,
      "score": 0,
      "vte_band": "0-1"
    }
  ],
  "path": "/api/calc/improve_vte"
}

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/improve_vte' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":50,"current_cancer":false,"icu_ccu_stay":false,"immobilized_ge_7_days":false,"known_thrombophilia":false,"lower_limb_paralysis":false,"previous_vte":false},{"age":50,"current_cancer":false,"icu_ccu_stay":false,"immobilized_ge_7_days":false,"known_thrombophilia":false,"lower_limb_paralysis":false,"previous_vte":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/improve_vte' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":50,"current_cancer":false,"icu_ccu_stay":false,"immobilized_ge_7_days":false,"known_thrombophilia":false,"lower_limb_paralysis":false,"previous_vte":false},{"age":50,"current_cancer":false,"icu_ccu_stay":false,"immobilized_ge_7_days":false,"known_thrombophilia":false,"lower_limb_paralysis":false,"previous_vte":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%2Fimprove_vte&method=POST
const res = await pay("https://api.magentlab.com/api/calc/improve_vte", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 50,
        "current_cancer": false,
        "icu_ccu_stay": false,
        "immobilized_ge_7_days": false,
        "known_thrombophilia": false,
        "lower_limb_paralysis": false,
        "previous_vte": false
      },
      {
        "age": 50,
        "current_cancer": false,
        "icu_ccu_stay": false,
        "immobilized_ge_7_days": false,
        "known_thrombophilia": false,
        "lower_limb_paralysis": false,
        "previous_vte": 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/improve_vte",
        json={
            "items": [
                {
                    "age": 50,
                    "current_cancer": False,
                    "icu_ccu_stay": False,
                    "immobilized_ge_7_days": False,
                    "known_thrombophilia": False,
                    "lower_limb_paralysis": False,
                    "previous_vte": False,
                },
                {
                    "age": 50,
                    "current_cancer": False,
                    "icu_ccu_stay": False,
                    "immobilized_ge_7_days": False,
                    "known_thrombophilia": False,
                    "lower_limb_paralysis": False,
                    "previous_vte": 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
2 h ago	Timed out	-	-	-
7 h ago	Timed out	-	-	-
12 h ago	Passed	402	435 ms	$0.007
17 h ago	Passed	402	147 ms	$0.007
21 h ago	Passed	402	218 ms	$0.007

Show 10 older checks

26 h ago	Passed	402	269 ms	$0.007
31 h ago	Passed	402	149 ms	$0.007
35 h ago	Passed	402	365 ms	$0.007
40 h ago	Passed	402	321 ms	$0.007
43 h ago	Passed	402	140 ms	$0.007
2 days ago	Passed	402	339 ms	$0.007
2 days ago	Passed	402	304 ms	$0.007
2 days ago	Passed	402	185 ms	$0.007
3 days ago	Passed	402	261 ms	$0.007
3 days ago	Passed	402	267 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

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