67trust / 100

Calc Garfield Af

by magent in Other

x402 APIFailing, checked 35 min ago

Fox 2017 GARFIELD-AF 1-year all-cause mortality, ischaemic stroke/systemic embolism, and major bleed from age, sex, weight, pulse, diastolic BP, comorbidities, smoking, caller-assigned ethnicity (White/Caucasian reference; Hispanic/Latino, Asian, Black/Mixed/Other), oral anticoagulant class (none, NOAC, VKA), carotid occlusive disease, and antiplatelet therapy. Published 1-year equations. magent does not assign race or ethnicity. Not a diagnosis or anticoagulation order.

POST

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

Price: $0.007; per call in USDC
Uptime: 91.4%; last 30 days
Response time: 183 ms; 507 ms slowest 5%
Last check: Failed; 35 min ago, next in 29 min

Run a free test call How to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 35 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/garfield_af

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/garfield_af
content-type: application/json

{
  "items": [
    {
      "age": 65,
      "antiplatelet": false,
      "carotid_occlusive_disease": false,
      "current_smoking": false,
      "dementia": false,
      "diabetes": false,
      "diastolic_bp_mm_hg": 80,
      "ethnicity": "white",
      "heart_failure": false,
      "history_of_bleeding": false,
      "moderate_to_severe_ckd": false,
      "oac": "none",
      "prior_stroke": false,
      "pulse": 70,
      "sex": "male",
      "vascular_disease": false,
      "weight_kg": 75
    },
    {
      "age": 65,
      "antiplatelet": false,
      "carotid_occlusive_disease": false,
      "current_smoking": false,
      "dementia": false,
      "diabetes": false,
      "diastolic_bp_mm_hg": 80,
      "ethnicity": "white",
      "heart_failure": false,
      "history_of_bleeding": false,
      "moderate_to_severe_ckd": false,
      "oac": "none",
      "prior_stroke": false,
      "pulse": 70,
      "sex": "male",
      "vascular_disease": false,
      "weight_kg": 75
    }
  ]
}

Parameters

Parameter	Type	Required	Description
`items`	array of object	Yes

Example response

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

Example response, 78 lines

{
  "count": 2,
  "items": [
    {
      "age": 65,
      "antiplatelet": false,
      "bleed_1y_percent": 0.7,
      "bleed_lp": -0.20835515,
      "carotid_occlusive_disease": false,
      "citation": {
        "authors": "Fox KAA, Lucas JE, Pieper KS, et al.",
        "doi": "10.1136/bmjopen-2017-017157",
        "id": "fox-2017-garfield-af",
        "pmid": "29273652",
        "source": "BMJ Open. 2017;7(12):e017157",
        "title": "Improved risk stratification of patients with atrial fibrillation: an integrated GARFIELD-AF tool for the prediction of mortality, stroke and bleed in patients with and without anticoagulation"
      },
      "current_smoking": false,
      "dementia": false,
      "diabetes": false,
      "diastolic_bp_mm_hg": 80,
      "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.",
      "ethnicity": "white",
      "formula": "garfield_af",
      "formula_expression": "mortality_1y_percent = 100*(1-0.962450119**exp(lp_mort)); lp_mort = 0.306202287*female + 0.693789082*heart_failure + 0.306120964*vascular_disease + 0.26585298*prior_stroke + 0.385407386*history_of_bleeding + 0.280133213*diabetes + 0.377903886*moderate_to_severe_ckd + 0.489453313*dementia + 0.345481149*current_smoking - 0.414591263*oac_noac - 0.18593561*oac_vka + 0.157023564*ethnicity_hispanic_latino - 0.609609055*ethnicity_asian + 0.375675102*ethnicity_black_mixed_other + 0.031050027*(age-65) if age<=65 + 0.064594824*(age-65) if age>65 - 0.021535182*(weight_kg-75) if weight_kg<=75 + 0.007678035*(pulse-120) if pulse<=120 - 0.019304333*(dbp-80) if dbp<=80; stroke_1y_percent = 100*(1-0.987574311**exp(lp_stroke)); lp_stroke = 0.233182644*heart_failure + 0.197919709*vascular_disease + 0.800863063*prior_stroke + 0.29883967*history_of_bleeding + 0.211995445*diabetes + 0.349516938*moderate_to_severe_ckd + 0.513221391*dementia + 0.478831506*current_smoking - 0.572199357*oac_noac - 0.352373263*…",
      "heart_failure": false,
      "history_of_bleeding": false,
      "moderate_to_severe_ckd": false,
      "mortality_1y_percent": 2.6,
      "mortality_lp": -0.38390175,
      "oac": "none",
      "prior_stroke": false,
      "pulse": 70,
      "sex": "male",
      "stroke_1y_percent": 1.2,
      "stroke_lp": 0,
      "vascular_disease": false,
      "weight_kg": 75
    },
    {
      "age": 65,
      "antiplatelet": false,
      "bleed_1y_percent": 0.7,
      "bleed_lp": -0.20835515,
      "carotid_occlusive_disease": false,
      "citation": {
        "authors": "Fox KAA, Lucas JE, Pieper KS, et al.",
        "doi": "10.1136/bmjopen-2017-017157",
        "id": "fox-2017-garfield-af",
        "pmid": "29273652",
        "source": "BMJ Open. 2017;7(12):e017157",
        "title": "Improved risk stratification of patients with atrial fibrillation: an integrated GARFIELD-AF tool for the prediction of mortality, stroke and bleed in patients with and without anticoagulation"
      },
      "current_smoking": false,
      "dementia": false,
      "diabetes": false,
      "diastolic_bp_mm_hg": 80,
      "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.",
      "ethnicity": "white",
      "formula": "garfield_af",
      "formula_expression": "mortality_1y_percent = 100*(1-0.962450119**exp(lp_mort)); lp_mort = 0.306202287*female + 0.693789082*heart_failure + 0.306120964*vascular_disease + 0.26585298*prior_stroke + 0.385407386*history_of_bleeding + 0.280133213*diabetes + 0.377903886*moderate_to_severe_ckd + 0.489453313*dementia + 0.345481149*current_smoking - 0.414591263*oac_noac - 0.18593561*oac_vka + 0.157023564*ethnicity_hispanic_latino - 0.609609055*ethnicity_asian + 0.375675102*ethnicity_black_mixed_other + 0.031050027*(age-65) if age<=65 + 0.064594824*(age-65) if age>65 - 0.021535182*(weight_kg-75) if weight_kg<=75 + 0.007678035*(pulse-120) if pulse<=120 - 0.019304333*(dbp-80) if dbp<=80; stroke_1y_percent = 100*(1-0.987574311**exp(lp_stroke)); lp_stroke = 0.233182644*heart_failure + 0.197919709*vascular_disease + 0.800863063*prior_stroke + 0.29883967*history_of_bleeding + 0.211995445*diabetes + 0.349516938*moderate_to_severe_ckd + 0.513221391*dementia + 0.478831506*current_smoking - 0.572199357*oac_noac - 0.352373263*…",
      "heart_failure": false,
      "history_of_bleeding": false,
      "moderate_to_severe_ckd": false,
      "mortality_1y_percent": 2.6,
      "mortality_lp": -0.38390175,
      "oac": "none",
      "prior_stroke": false,
      "pulse": 70,
      "sex": "male",
      "stroke_1y_percent": 1.2,
      "stroke_lp": 0,
      "vascular_disease": false,
      "weight_kg": 75
    }
  ],
  "path": "/api/calc/garfield_af"
}

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/garfield_af' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":65,"antiplatelet":false,"carotid_occlusive_disease":false,"current_smoking":false,"dementia":false,"diabetes":false,"diastolic_bp_mm_hg":80,"ethnicity":"white","heart_failure":false,"history_of_bleeding":false,"moderate_to_severe_ckd":false,"oac":"none","prior_stroke":false,"pulse":70,"sex":"male","vascular_disease":false,"weight_kg":75},{"age":65,"antiplatelet":false,"carotid_occlusive_disease":false,"current_smoking":false,"dementia":false,"diabetes":false,"diastolic_bp_mm_hg":80,"ethnicity":"white","heart_failure":false,"history_of_bleeding":false,"moderate_to_severe_ckd":false,"oac":"none","prior_stroke":false,"pulse":70,"sex":"male","vascular_disease":false,"weight_kg":75}]}'

# 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/garfield_af' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":65,"antiplatelet":false,"carotid_occlusive_disease":false,"current_smoking":false,"dementia":false,"diabetes":false,"diastolic_bp_mm_hg":80,"ethnicity":"white","heart_failure":false,"history_of_bleeding":false,"moderate_to_severe_ckd":false,"oac":"none","prior_stroke":false,"pulse":70,"sex":"male","vascular_disease":false,"weight_kg":75},{"age":65,"antiplatelet":false,"carotid_occlusive_disease":false,"current_smoking":false,"dementia":false,"diabetes":false,"diastolic_bp_mm_hg":80,"ethnicity":"white","heart_failure":false,"history_of_bleeding":false,"moderate_to_severe_ckd":false,"oac":"none","prior_stroke":false,"pulse":70,"sex":"male","vascular_disease":false,"weight_kg":75}]}' \
  | 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%2Fgarfield_af&method=POST
const res = await pay("https://api.magentlab.com/api/calc/garfield_af", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 65,
        "antiplatelet": false,
        "carotid_occlusive_disease": false,
        "current_smoking": false,
        "dementia": false,
        "diabetes": false,
        "diastolic_bp_mm_hg": 80,
        "ethnicity": "white",
        "heart_failure": false,
        "history_of_bleeding": false,
        "moderate_to_severe_ckd": false,
        "oac": "none",
        "prior_stroke": false,
        "pulse": 70,
        "sex": "male",
        "vascular_disease": false,
        "weight_kg": 75
      },
      {
        "age": 65,
        "antiplatelet": false,
        "carotid_occlusive_disease": false,
        "current_smoking": false,
        "dementia": false,
        "diabetes": false,
        "diastolic_bp_mm_hg": 80,
        "ethnicity": "white",
        "heart_failure": false,
        "history_of_bleeding": false,
        "moderate_to_severe_ckd": false,
        "oac": "none",
        "prior_stroke": false,
        "pulse": 70,
        "sex": "male",
        "vascular_disease": false,
        "weight_kg": 75
      }
    ]
  }),
});
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/garfield_af",
        json={
            "items": [
                {
                    "age": 65,
                    "antiplatelet": False,
                    "carotid_occlusive_disease": False,
                    "current_smoking": False,
                    "dementia": False,
                    "diabetes": False,
                    "diastolic_bp_mm_hg": 80,
                    "ethnicity": "white",
                    "heart_failure": False,
                    "history_of_bleeding": False,
                    "moderate_to_severe_ckd": False,
                    "oac": "none",
                    "prior_stroke": False,
                    "pulse": 70,
                    "sex": "male",
                    "vascular_disease": False,
                    "weight_kg": 75,
                },
                {
                    "age": 65,
                    "antiplatelet": False,
                    "carotid_occlusive_disease": False,
                    "current_smoking": False,
                    "dementia": False,
                    "diabetes": False,
                    "diastolic_bp_mm_hg": 80,
                    "ethnicity": "white",
                    "heart_failure": False,
                    "history_of_bleeding": False,
                    "moderate_to_severe_ckd": False,
                    "oac": "none",
                    "prior_stroke": False,
                    "pulse": 70,
                    "sex": "male",
                    "vascular_disease": False,
                    "weight_kg": 75,
                },
            ],
        },
    )
    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
35 min ago	Timed out	-	-	-
5 h ago	Timed out	-	-	-
10 h ago	Timed out	-	-	-
15 h ago	Passed	402	279 ms	$0.007
20 h ago	Passed	402	194 ms	$0.007

Show 10 older checks

25 h ago	Passed	402	150 ms	$0.007
29 h ago	Passed	402	171 ms	$0.007
34 h ago	Passed	402	380 ms	$0.007
38 h ago	Passed	402	507 ms	$0.007
43 h ago	Passed	402	152 ms	$0.007
47 h ago	Passed	402	393 ms	$0.007
2 days ago	Passed	402	353 ms	$0.007
2 days ago	Passed	402	183 ms	$0.007
2 days ago	Passed	402	475 ms	$0.007
3 days ago	Passed	402	191 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 67/ 100

Availability (30-day uptime)		27 / 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: 5 days ago

Source: x402 Bazaar settlement data.

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Trust score

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