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Khan 2024 AHA PREVENT base 10-year total CVD percent (ASCVD plus heart failure) for age…

Khan 2024 AHA PREVENT base 10-year total CVD percent (ASCVD plus heart failure) for age 30-79 from sex, lipids, treated systolic BP, diabetes, smoking, eGFR, BMI, antihypertensive, and statin. Sex-specific, race-free Table S12 coefficients. Not 30-year, not A…

by api.magentlab.com · discovered, not yet claimed by its owner · updated 2026-10-12

30d calls4
30d payers2
MethodGET
Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Khan 2024 AHA PREVENT base 10-year total CVD percent (ASCVD plus heart failure) for age 30-79 from sex, lipids, treated systolic BP, diabetes, smoking, eGFR, BMI, antihypertensive, and statin. Sex-specific, race-free Table S12 coefficients. Not 30-year, not ASCVD-only, not HF-only, not 2013 PCE, not SCORE2, not a diagnosis or statin order. magent does not assay lipids.

Tags: prevent · cvd-risk · lipids · aha-2024 · calculator · bazaar

Call contract

Method
GET
Input
query parameters
Output
json
Last paid call
2026-10-12
Input example from Bazaar metadata
{
  "age": 50,
  "antihypertensive": true,
  "bmi_kg_m2": 35,
  "diabetes": false,
  "egfr_ml_min_1_73m2": 90,
  "hdl_mg_dl": 55,
  "sbp_mm_hg": 160,
  "sex": "female",
  "smoker": false,
  "statin": false,
  "total_cholesterol_mg_dl": 240
}
Output example
{
  "age": 50,
  "antihypertensive": true,
  "bmi_kg_m2": 35,
  "citation": {
    "authors": "Khan SS, Matsushita K, Sang Y, Ballew SH, Grams ME, Surapaneni A, et al.; Chronic Kidney Disease Prognosis Consortium and the AHA Cardiovascular-Kidney-Metabolic Science Advisory Group",
    "doi": "10.1161/CIRCULATIONAHA.123.067626",
    "id": "khan-2024-prevent",
    "pmid": "37947085",
    "source": "Circulation. 2024;149(6):430-449",
    "title": "Development and Validation of the American Heart Association’s PREVENT Equations"
  },
  "diabetes": 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.",
  "egfr_ml_min_1_73m2": 90,
  "formula": "prevent",
  "formula_expression": "10-year total CVD % = 100*exp(lp)/(1+exp(lp)); Khan 2024 Supplement Table S12 base 10-year total CVD (ASCVD+HF) only; sex-specific race-free; age 30-79; cage=(age-55)/10; mg/dL*0.02586 to mmol/L; cnhdl=(TC-HDL)*0.02586-3.5; chdl=(HDL*0.02586-1.3)/0.3; sbp_lt110=(min(SBP,110)-110)/20; sbp_ge110=(max(SBP,110)-130)/20; egfr_lt60=(min(eGFR,60)-60)/-15; egfr_ge60=(max(eGFR,60)-90)/-15; BMI spline printed at 30 with S12 total-CVD betas 0; women lp=-3.307728+0.7939329*cage+0.0305239*cnhdl-0.1606857*chdl-0.2394003*sbp_lt110+0.3600781*sbp_ge110+0.8667604*dm+0.5360739*smoke+0.6045917*egfr_lt60+0.0433769*egfr_ge60+0.3151672*antihtn-0.1477655*statin-0.0663612*sbp_ge110*antihtn+0.1197879*cnhdl*statin-0.0819715*cage*cnhdl+0.0306769*cage*chdl-0.0946348*cage*sbp_ge110-0.27057*cage*dm-0.078715*cage*smoke-0.1637806*cage*egfr_lt60; men lp=-3.031168+0.7688528*cage+0.0736174*cnhdl-0.0954431*chdl-0.4347345*sbp_lt110+0.3362658*sbp_ge110+0.7692857*dm+0.4386871*smoke+0.5378979*egfr_lt60+0.0164827*egfr_ge60+0.288879*antihtn-0.1337349*statin-0.0475924*sbp_ge110*antihtn+0.150273*cnhdl*statin-0.0517874*cage*cnhdl+0.0191169*cage*chdl-0.1049477*cage*sbp_ge110-0.2251948*cage*dm-0.0895067*cage*smoke-0.1543702*cage*egfr_lt60; not 30-year; not ASCVD-only; not HF-only; not HbA1c/UACR/SDI add-ons; not 2013 PCE; not SCORE2",
  "hdl_mg_dl": 55,
  "linear_predictor": -2.8579,
  "sbp_mm_hg": 160,
  "sex": "female",
  "smoker": false,
  "statin": false,
  "ten_year_cvd_percent": 5.4,
  "total_cholesterol_mg_dl": 240
}

Use with an agent

  1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
  2. Inspect. Fetch /resources/39501.json for the price and payment options.
  3. Pay. Call GET https://api.magentlab.com/api/calc/prevent. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
  4. Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price
$0.005 / request
Protocol
x402 v2
Auth
No account or API key. Pay per request.
Networks
Base
Demand
4 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

SchemeNetworkAssetAmountPay toTimeout
exactBase
eip155:8453		USDC$0.0050x836Be278f1739fB4308091cD1852F7971Bc19Ee2600s
batch-settlementBase
eip155:8453		USDC$0.0050x836Be278f1739fB4308091cD1852F7971Bc19Ee2600s
accepts[] (raw JSON)
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "amountUsd": 0.005,
    "maxTimeoutSeconds": 600
  },
  {
    "scheme": "batch-settlement",
    "network": "eip155:8453",
    "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "amountUsd": 0.005,
    "maxTimeoutSeconds": 600
  }
]

Schemas

Output schema (JSON Schema)
{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}
Example shape — generated from the schema, not a captured live response
{
  "example": {},
  "type": "string"
}

Examples

curl
curl "https://api.magentlab.com/api/calc/prevent"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.magentlab.com/api/calc/prevent");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}
Python
import httpx
res = httpx.get("https://api.magentlab.com/api/calc/prevent")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider
api.magentlab.com
Endpoint
https://api.magentlab.com/api/calc/prevent
Machine-readable
/resources/39501.json