67trust / 100

Calc Framingham Hf

by magent in Other

x402 APIFailing, checked 35 min ago

McKee 1971 Framingham CHF criteria. Definite if two major, or one major plus two minor, are concurrent. Nine major and seven minor caller-assigned flags. Weight loss ≥4.5 kg in 5 days in response to treatment is dual: major if that is definite, else minor if that is definite, else unused. major_count and minor_count are the fixed flags only. Not a medical device, not an echocardiographic diagnosis, and not HFrEF or HFpEF staging.

POST

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

Price: $0.007; per call in USDC
Uptime: 91.4%; last 30 days
Response time: 173 ms; 398 ms slowest 5%
Last check: Failed; 35 min ago, next in 22 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/framingham_hf

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/framingham_hf
content-type: application/json

{
  "items": [
    {
      "acute_pulmonary_edema": false,
      "ankle_edema": false,
      "cardiomegaly": false,
      "circulation_time_ge_25": false,
      "dyspnea_on_exertion": false,
      "hepatojugular_reflux": false,
      "hepatomegaly": false,
      "neck_vein_distention": false,
      "night_cough": false,
      "pleural_effusion": false,
      "pnd_or_orthopnea": false,
      "rales": false,
      "s3_gallop": false,
      "tachycardia_ge_120": false,
      "venous_pressure_gt_16": false,
      "vital_capacity_decreased_third": false,
      "weight_loss_45kg_5d_treatment": false
    },
    {
      "acute_pulmonary_edema": false,
      "ankle_edema": false,
      "cardiomegaly": false,
      "circulation_time_ge_25": false,
      "dyspnea_on_exertion": false,
      "hepatojugular_reflux": false,
      "hepatomegaly": false,
      "neck_vein_distention": false,
      "night_cough": false,
      "pleural_effusion": false,
      "pnd_or_orthopnea": false,
      "rales": false,
      "s3_gallop": false,
      "tachycardia_ge_120": false,
      "venous_pressure_gt_16": false,
      "vital_capacity_decreased_third": false,
      "weight_loss_45kg_5d_treatment": 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, 180 lines

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "McKee PA, Castelli WP, McNamara PM, Kannel WB",
        "doi": "10.1056/NEJM197112232852601",
        "id": "mckee-1971",
        "pmid": "5122894",
        "source": "N Engl J Med. 1971;285(26):1441-1446",
        "title": "The natural history of congestive heart failure: the Framingham study"
      },
      "classification": "not_definite",
      "components": [
        {
          "factor": "pnd_or_orthopnea",
          "met": false
        },
        {
          "factor": "neck_vein_distention",
          "met": false
        },
        {
          "factor": "rales",
          "met": false
        },
        {
          "factor": "cardiomegaly",
          "met": false
        },
        {
          "factor": "acute_pulmonary_edema",
          "met": false
        },
        {
          "factor": "s3_gallop",
          "met": false
        },
        {
          "factor": "venous_pressure_gt_16",
          "met": false
        },
        {
          "factor": "circulation_time_ge_25",
          "met": false
        },
        {
          "factor": "hepatojugular_reflux",
          "met": false
        },
        {
          "factor": "ankle_edema",
          "met": false
        },
        {
          "factor": "night_cough",
          "met": false
        },
        {
          "factor": "dyspnea_on_exertion",
          "met": false
        },
        {
          "factor": "hepatomegaly",
          "met": false
        },
        {
          "factor": "pleural_effusion",
          "met": false
        },
        {
          "factor": "vital_capacity_decreased_third",
          "met": false
        },
        {
          "factor": "tachycardia_ge_120",
          "met": false
        },
        {
          "factor": "weight_loss_45kg_5d_treatment",
          "met": 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": "framingham_hf",
      "formula_expression": "definite iff 2 major OR (1 major AND 2 minor) concurrent (McKee 1971). weight_loss_45kg_5d_treatment (≥4.5 kg in 5 days in response to treatment) counts as major if that assignment is definite, else as minor if that assignment is definite, else unused. major_count is the 9 fixed majors; minor_count is the 7 fixed minors",
      "major_count": 0,
      "minor_count": 0,
      "weight_loss_45kg_5d_treatment": false
    },
    {
      "citation": {
        "authors": "McKee PA, Castelli WP, McNamara PM, Kannel WB",
        "doi": "10.1056/NEJM197112232852601",
        "id": "mckee-1971",
        "pmid": "5122894",
        "source": "N Engl J Med. 1971;285(26):1441-1446",
        "title": "The natural history of congestive heart failure: the Framingham study"
      },
      "classification": "not_definite",
      "components": [
        {
          "factor": "pnd_or_orthopnea",
          "met": false
        },
        {
          "factor": "neck_vein_distention",
          "met": false
        },
        {
          "factor": "rales",
          "met": false
        },
        {
          "factor": "cardiomegaly",
          "met": false
        },
        {
          "factor": "acute_pulmonary_edema",
          "met": false
        },
        {
          "factor": "s3_gallop",
          "met": false
        },
        {
          "factor": "venous_pressure_gt_16",
          "met": false
        },
        {
          "factor": "circulation_time_ge_25",
          "met": false
        },
        {
          "factor": "hepatojugular_reflux",
          "met": false
        },
        {
          "factor": "ankle_edema",
          "met": false
        },
        {
          "factor": "night_cough",
          "met": false
        },
        {
          "factor": "dyspnea_on_exertion",
          "met": false
        },
        {
          "factor": "hepatomegaly",
          "met": false
        },
        {
          "factor": "pleural_effusion",
          "met": false
        },
        {
          "factor": "vital_capacity_decreased_third",
          "met": false
        },
        {
          "factor": "tachycardia_ge_120",
          "met": false
        },
        {
          "factor": "weight_loss_45kg_5d_treatment",
          "met": 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": "framingham_hf",
      "formula_expression": "definite iff 2 major OR (1 major AND 2 minor) concurrent (McKee 1971). weight_loss_45kg_5d_treatment (≥4.5 kg in 5 days in response to treatment) counts as major if that assignment is definite, else as minor if that assignment is definite, else unused. major_count is the 9 fixed majors; minor_count is the 7 fixed minors",
      "major_count": 0,
      "minor_count": 0,
      "weight_loss_45kg_5d_treatment": false
    }
  ],
  "path": "/api/calc/framingham_hf"
}

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/framingham_hf' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"acute_pulmonary_edema":false,"ankle_edema":false,"cardiomegaly":false,"circulation_time_ge_25":false,"dyspnea_on_exertion":false,"hepatojugular_reflux":false,"hepatomegaly":false,"neck_vein_distention":false,"night_cough":false,"pleural_effusion":false,"pnd_or_orthopnea":false,"rales":false,"s3_gallop":false,"tachycardia_ge_120":false,"venous_pressure_gt_16":false,"vital_capacity_decreased_third":false,"weight_loss_45kg_5d_treatment":false},{"acute_pulmonary_edema":false,"ankle_edema":false,"cardiomegaly":false,"circulation_time_ge_25":false,"dyspnea_on_exertion":false,"hepatojugular_reflux":false,"hepatomegaly":false,"neck_vein_distention":false,"night_cough":false,"pleural_effusion":false,"pnd_or_orthopnea":false,"rales":false,"s3_gallop":false,"tachycardia_ge_120":false,"venous_pressure_gt_16":false,"vital_capacity_decreased_third":false,"weight_loss_45kg_5d_treatment":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/framingham_hf' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"acute_pulmonary_edema":false,"ankle_edema":false,"cardiomegaly":false,"circulation_time_ge_25":false,"dyspnea_on_exertion":false,"hepatojugular_reflux":false,"hepatomegaly":false,"neck_vein_distention":false,"night_cough":false,"pleural_effusion":false,"pnd_or_orthopnea":false,"rales":false,"s3_gallop":false,"tachycardia_ge_120":false,"venous_pressure_gt_16":false,"vital_capacity_decreased_third":false,"weight_loss_45kg_5d_treatment":false},{"acute_pulmonary_edema":false,"ankle_edema":false,"cardiomegaly":false,"circulation_time_ge_25":false,"dyspnea_on_exertion":false,"hepatojugular_reflux":false,"hepatomegaly":false,"neck_vein_distention":false,"night_cough":false,"pleural_effusion":false,"pnd_or_orthopnea":false,"rales":false,"s3_gallop":false,"tachycardia_ge_120":false,"venous_pressure_gt_16":false,"vital_capacity_decreased_third":false,"weight_loss_45kg_5d_treatment":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%2Fframingham_hf&method=POST
const res = await pay("https://api.magentlab.com/api/calc/framingham_hf", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "acute_pulmonary_edema": false,
        "ankle_edema": false,
        "cardiomegaly": false,
        "circulation_time_ge_25": false,
        "dyspnea_on_exertion": false,
        "hepatojugular_reflux": false,
        "hepatomegaly": false,
        "neck_vein_distention": false,
        "night_cough": false,
        "pleural_effusion": false,
        "pnd_or_orthopnea": false,
        "rales": false,
        "s3_gallop": false,
        "tachycardia_ge_120": false,
        "venous_pressure_gt_16": false,
        "vital_capacity_decreased_third": false,
        "weight_loss_45kg_5d_treatment": false
      },
      {
        "acute_pulmonary_edema": false,
        "ankle_edema": false,
        "cardiomegaly": false,
        "circulation_time_ge_25": false,
        "dyspnea_on_exertion": false,
        "hepatojugular_reflux": false,
        "hepatomegaly": false,
        "neck_vein_distention": false,
        "night_cough": false,
        "pleural_effusion": false,
        "pnd_or_orthopnea": false,
        "rales": false,
        "s3_gallop": false,
        "tachycardia_ge_120": false,
        "venous_pressure_gt_16": false,
        "vital_capacity_decreased_third": false,
        "weight_loss_45kg_5d_treatment": 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/framingham_hf",
        json={
            "items": [
                {
                    "acute_pulmonary_edema": False,
                    "ankle_edema": False,
                    "cardiomegaly": False,
                    "circulation_time_ge_25": False,
                    "dyspnea_on_exertion": False,
                    "hepatojugular_reflux": False,
                    "hepatomegaly": False,
                    "neck_vein_distention": False,
                    "night_cough": False,
                    "pleural_effusion": False,
                    "pnd_or_orthopnea": False,
                    "rales": False,
                    "s3_gallop": False,
                    "tachycardia_ge_120": False,
                    "venous_pressure_gt_16": False,
                    "vital_capacity_decreased_third": False,
                    "weight_loss_45kg_5d_treatment": False,
                },
                {
                    "acute_pulmonary_edema": False,
                    "ankle_edema": False,
                    "cardiomegaly": False,
                    "circulation_time_ge_25": False,
                    "dyspnea_on_exertion": False,
                    "hepatojugular_reflux": False,
                    "hepatomegaly": False,
                    "neck_vein_distention": False,
                    "night_cough": False,
                    "pleural_effusion": False,
                    "pnd_or_orthopnea": False,
                    "rales": False,
                    "s3_gallop": False,
                    "tachycardia_ge_120": False,
                    "venous_pressure_gt_16": False,
                    "vital_capacity_decreased_third": False,
                    "weight_loss_45kg_5d_treatment": 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
35 min ago	Timed out	-	-	-
5 h ago	Timed out	-	-	-
10 h ago	Timed out	-	-	-
15 h ago	Passed	402	164 ms	$0.007
20 h ago	Passed	402	291 ms	$0.007

Show 10 older checks

25 h ago	Passed	402	306 ms	$0.007
29 h ago	Passed	402	153 ms	$0.007
34 h ago	Passed	402	176 ms	$0.007
38 h ago	Passed	402	173 ms	$0.007
43 h ago	Passed	402	294 ms	$0.007
47 h ago	Passed	402	209 ms	$0.007
2 days ago	Passed	402	141 ms	$0.007
2 days ago	Passed	402	141 ms	$0.007
2 days ago	Passed	402	155 ms	$0.007
3 days ago	Passed	402	181 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-framingham-hf.svg)](https://toolvet.app/s/calc-framingham-hf)