68trust / 100

Calc Improvedd

x402 APIFailing, checked 3 h ago

Gibson 2017 IMPROVEDD VTE score: Spyropoulos 2011 7-factor IMPROVE items (previous VTE 3, known thrombophilia 2, lower-limb paralysis 2, current cancer 2, immobilized >=7 days 1, ICU/CCU 1, age >60 1) plus 2 if caller-assigned D-dimer >=2x ULN. Max 14. low 0-1 vs high >=2 (heightened VTE through 77 days when >=2). Not a VTE diagnosis or prophylaxis order. Not the 4-factor admission model. Not Padua or Caprini. magent does not assay D-dimer.

POST

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

Price: $0.007; per call in USDC
Uptime: 94.1%; last 30 days
Response time: 160 ms; 369 ms slowest 5%
Last check: Failed; 3 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 3 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/improvedd

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/improvedd
content-type: application/json

{
  "items": [
    {
      "age": 50,
      "current_cancer": false,
      "d_dimer_ge_2x_uln": 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,
      "d_dimer_ge_2x_uln": 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, 126 lines

{
  "count": 2,
  "items": [
    {
      "age_years": 50,
      "citation": {
        "authors": "Gibson CM, Spyropoulos AC, Cohen AT, Hull RD, Goldhaber SZ, Yusen RD, Hernandez AF, Korjian S, Daaboul Y, Gold A, Harrington RA, Chi G",
        "doi": "10.1055/s-0037-1603929",
        "id": "gibson-2017",
        "pmid": "31249911",
        "source": "TH Open. 2017;1(1):e56-e65",
        "title": "The IMPROVEDD VTE Risk Score: Incorporation of D-Dimer into the IMPROVE Score to Improve Venous Thromboembolism Risk Stratification"
      },
      "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
        },
        {
          "factor": "d_dimer_ge_2x_uln",
          "points": 0,
          "present": 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.",
      "formula": "improvedd",
      "formula_expression": "IMPROVEDD VTE (Gibson 2017; Spyropoulos 2011 7-factor associative items plus D-dimer >=2x ULN) = 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) + d_dimer_ge_2x_uln (2); max 14; 0-1 low vs >=2 high (heightened VTE risk through 77 days when >=2); not the 4-factor admission predictive model; not Padua; not Caprini",
      "max_score": 14,
      "score": 0,
      "vte_band": "low"
    },
    {
      "age_years": 50,
      "citation": {
        "authors": "Gibson CM, Spyropoulos AC, Cohen AT, Hull RD, Goldhaber SZ, Yusen RD, Hernandez AF, Korjian S, Daaboul Y, Gold A, Harrington RA, Chi G",
        "doi": "10.1055/s-0037-1603929",
        "id": "gibson-2017",
        "pmid": "31249911",
        "source": "TH Open. 2017;1(1):e56-e65",
        "title": "The IMPROVEDD VTE Risk Score: Incorporation of D-Dimer into the IMPROVE Score to Improve Venous Thromboembolism Risk Stratification"
      },
      "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
        },
        {
          "factor": "d_dimer_ge_2x_uln",
          "points": 0,
          "present": 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.",
      "formula": "improvedd",
      "formula_expression": "IMPROVEDD VTE (Gibson 2017; Spyropoulos 2011 7-factor associative items plus D-dimer >=2x ULN) = 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) + d_dimer_ge_2x_uln (2); max 14; 0-1 low vs >=2 high (heightened VTE risk through 77 days when >=2); not the 4-factor admission predictive model; not Padua; not Caprini",
      "max_score": 14,
      "score": 0,
      "vte_band": "low"
    }
  ],
  "path": "/api/calc/improvedd"
}

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/improvedd' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":50,"current_cancer":false,"d_dimer_ge_2x_uln":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,"d_dimer_ge_2x_uln":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/improvedd' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":50,"current_cancer":false,"d_dimer_ge_2x_uln":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,"d_dimer_ge_2x_uln":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%2Fimprovedd&method=POST
const res = await pay("https://api.magentlab.com/api/calc/improvedd", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 50,
        "current_cancer": false,
        "d_dimer_ge_2x_uln": 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,
        "d_dimer_ge_2x_uln": 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/improvedd",
        json={
            "items": [
                {
                    "age": 50,
                    "current_cancer": False,
                    "d_dimer_ge_2x_uln": 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,
                    "d_dimer_ge_2x_uln": 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
3 h ago	Timed out	-	-	-
8 h ago	Timed out	-	-	-
12 h ago	Passed	402	337 ms	$0.007
17 h ago	Passed	402	436 ms	$0.007
22 h ago	Passed	402	149 ms	$0.007

Show 10 older checks

27 h ago	Passed	402	146 ms	$0.007
31 h ago	Passed	402	160 ms	$0.007
36 h ago	Passed	402	166 ms	$0.007
40 h ago	Passed	402	152 ms	$0.007
44 h ago	Passed	402	230 ms	$0.007
2 days ago	Passed	402	160 ms	$0.007
2 days ago	Passed	402	270 ms	$0.007
2 days ago	Passed	402	280 ms	$0.007
3 days ago	Passed	402	167 ms	$0.007
3 days ago	Passed	402	139 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-improvedd.svg)](https://toolvet.app/s/calc-improvedd)