68trust / 100

Calc Harvey Bradshaw

by magent in Other

x402 APIFailing, checked 5 h ago

Harvey and Bradshaw 1980 simple Crohn's-disease activity index (one-day; items 1-3 previous day). Well-being 0-4, abdominal pain 0-3, liquid stools (1 point each; magent clamp 0-30), abdominal mass 0-3, plus 1 per listed complication (arthralgia, uveitis, erythema nodosum, aphthous ulcers, pyoderma gangrenosum, anal fissure, new fistula, abscess). magent sums only (max 48) and does not return later remission cutoffs. Not a Crohn's diagnosis or Best 1976 CDAI. magent does not examine the patient.

POST

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

Price: $0.007; per call in USDC
Uptime: 94.1%; last 30 days
Response time: 178 ms; 718 ms slowest 5%
Last check: Failed; 5 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 5 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/harvey_bradshaw

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/harvey_bradshaw
content-type: application/json

{
  "items": [
    {
      "abdominal_mass": 0,
      "abdominal_pain": 0,
      "abscess": false,
      "anal_fissure": false,
      "aphthous_ulcers": false,
      "arthralgia": false,
      "erythema_nodosum": false,
      "liquid_stools": 0,
      "new_fistula": false,
      "pyoderma_gangrenosum": false,
      "uveitis": false,
      "well_being": 0
    },
    {
      "abdominal_mass": 0,
      "abdominal_pain": 0,
      "abscess": false,
      "anal_fissure": false,
      "aphthous_ulcers": false,
      "arthralgia": false,
      "erythema_nodosum": false,
      "liquid_stools": 0,
      "new_fistula": false,
      "pyoderma_gangrenosum": false,
      "uveitis": false,
      "well_being": 0
    }
  ]
}

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, 192 lines

{
  "count": 2,
  "items": [
    {
      "abdominal_mass": 0,
      "abdominal_pain": 0,
      "abscess": false,
      "anal_fissure": false,
      "aphthous_ulcers": false,
      "arthralgia": false,
      "citation": {
        "authors": "Harvey RF, Bradshaw JM",
        "doi": "10.1016/s0140-6736(80)92767-1",
        "id": "harvey-bradshaw-1980",
        "pmid": "6102236",
        "source": "Lancet. 1980;1(8167):514",
        "title": "A simple index of Crohn's-disease activity"
      },
      "components": [
        {
          "factor": "well_being",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "abdominal_pain",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "liquid_stools",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "abdominal_mass",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "arthralgia",
          "points": 0,
          "present": false
        },
        {
          "factor": "uveitis",
          "points": 0,
          "present": false
        },
        {
          "factor": "erythema_nodosum",
          "points": 0,
          "present": false
        },
        {
          "factor": "aphthous_ulcers",
          "points": 0,
          "present": false
        },
        {
          "factor": "pyoderma_gangrenosum",
          "points": 0,
          "present": false
        },
        {
          "factor": "anal_fissure",
          "points": 0,
          "present": false
        },
        {
          "factor": "new_fistula",
          "points": 0,
          "present": false
        },
        {
          "factor": "abscess",
          "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.",
      "erythema_nodosum": false,
      "formula": "harvey_bradshaw",
      "formula_expression": "HBI = well_being + abdominal_pain + liquid_stools + abdominal_mass + 1 per listed complication; Harvey 1980 previous-day items; magent max 48 (liquid_stools clamp 0-30)",
      "liquid_stools": 0,
      "max_score": 48,
      "new_fistula": false,
      "pyoderma_gangrenosum": false,
      "score": 0,
      "uveitis": false,
      "well_being": 0
    },
    {
      "abdominal_mass": 0,
      "abdominal_pain": 0,
      "abscess": false,
      "anal_fissure": false,
      "aphthous_ulcers": false,
      "arthralgia": false,
      "citation": {
        "authors": "Harvey RF, Bradshaw JM",
        "doi": "10.1016/s0140-6736(80)92767-1",
        "id": "harvey-bradshaw-1980",
        "pmid": "6102236",
        "source": "Lancet. 1980;1(8167):514",
        "title": "A simple index of Crohn's-disease activity"
      },
      "components": [
        {
          "factor": "well_being",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "abdominal_pain",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "liquid_stools",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "abdominal_mass",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "arthralgia",
          "points": 0,
          "present": false
        },
        {
          "factor": "uveitis",
          "points": 0,
          "present": false
        },
        {
          "factor": "erythema_nodosum",
          "points": 0,
          "present": false
        },
        {
          "factor": "aphthous_ulcers",
          "points": 0,
          "present": false
        },
        {
          "factor": "pyoderma_gangrenosum",
          "points": 0,
          "present": false
        },
        {
          "factor": "anal_fissure",
          "points": 0,
          "present": false
        },
        {
          "factor": "new_fistula",
          "points": 0,
          "present": false
        },
        {
          "factor": "abscess",
          "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.",
      "erythema_nodosum": false,
      "formula": "harvey_bradshaw",
      "formula_expression": "HBI = well_being + abdominal_pain + liquid_stools + abdominal_mass + 1 per listed complication; Harvey 1980 previous-day items; magent max 48 (liquid_stools clamp 0-30)",
      "liquid_stools": 0,
      "max_score": 48,
      "new_fistula": false,
      "pyoderma_gangrenosum": false,
      "score": 0,
      "uveitis": false,
      "well_being": 0
    }
  ],
  "path": "/api/calc/harvey_bradshaw"
}

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/harvey_bradshaw' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"abdominal_mass":0,"abdominal_pain":0,"abscess":false,"anal_fissure":false,"aphthous_ulcers":false,"arthralgia":false,"erythema_nodosum":false,"liquid_stools":0,"new_fistula":false,"pyoderma_gangrenosum":false,"uveitis":false,"well_being":0},{"abdominal_mass":0,"abdominal_pain":0,"abscess":false,"anal_fissure":false,"aphthous_ulcers":false,"arthralgia":false,"erythema_nodosum":false,"liquid_stools":0,"new_fistula":false,"pyoderma_gangrenosum":false,"uveitis":false,"well_being":0}]}'

# 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/harvey_bradshaw' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"abdominal_mass":0,"abdominal_pain":0,"abscess":false,"anal_fissure":false,"aphthous_ulcers":false,"arthralgia":false,"erythema_nodosum":false,"liquid_stools":0,"new_fistula":false,"pyoderma_gangrenosum":false,"uveitis":false,"well_being":0},{"abdominal_mass":0,"abdominal_pain":0,"abscess":false,"anal_fissure":false,"aphthous_ulcers":false,"arthralgia":false,"erythema_nodosum":false,"liquid_stools":0,"new_fistula":false,"pyoderma_gangrenosum":false,"uveitis":false,"well_being":0}]}' \
  | 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%2Fharvey_bradshaw&method=POST
const res = await pay("https://api.magentlab.com/api/calc/harvey_bradshaw", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "abdominal_mass": 0,
        "abdominal_pain": 0,
        "abscess": false,
        "anal_fissure": false,
        "aphthous_ulcers": false,
        "arthralgia": false,
        "erythema_nodosum": false,
        "liquid_stools": 0,
        "new_fistula": false,
        "pyoderma_gangrenosum": false,
        "uveitis": false,
        "well_being": 0
      },
      {
        "abdominal_mass": 0,
        "abdominal_pain": 0,
        "abscess": false,
        "anal_fissure": false,
        "aphthous_ulcers": false,
        "arthralgia": false,
        "erythema_nodosum": false,
        "liquid_stools": 0,
        "new_fistula": false,
        "pyoderma_gangrenosum": false,
        "uveitis": false,
        "well_being": 0
      }
    ]
  }),
});
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/harvey_bradshaw",
        json={
            "items": [
                {
                    "abdominal_mass": 0,
                    "abdominal_pain": 0,
                    "abscess": False,
                    "anal_fissure": False,
                    "aphthous_ulcers": False,
                    "arthralgia": False,
                    "erythema_nodosum": False,
                    "liquid_stools": 0,
                    "new_fistula": False,
                    "pyoderma_gangrenosum": False,
                    "uveitis": False,
                    "well_being": 0,
                },
                {
                    "abdominal_mass": 0,
                    "abdominal_pain": 0,
                    "abscess": False,
                    "anal_fissure": False,
                    "aphthous_ulcers": False,
                    "arthralgia": False,
                    "erythema_nodosum": False,
                    "liquid_stools": 0,
                    "new_fistula": False,
                    "pyoderma_gangrenosum": False,
                    "uveitis": False,
                    "well_being": 0,
                },
            ],
        },
    )
    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
5 h ago	Timed out	-	-	-
9 h ago	Timed out	-	-	-
14 h ago	Passed	402	164 ms	$0.007
19 h ago	Passed	402	320 ms	$0.007
24 h ago	Passed	402	566 ms	$0.007

Show 10 older checks

28 h ago	Passed	402	259 ms	$0.007
33 h ago	Passed	402	163 ms	$0.007
37 h ago	Passed	402	144 ms	$0.007
42 h ago	Passed	402	155 ms	$0.007
46 h ago	Passed	402	306 ms	$0.007
2 days ago	Passed	402	347 ms	$0.007
2 days ago	Passed	402	300 ms	$0.007
2 days ago	Passed	402	278 ms	$0.007
3 days ago	Passed	402	312 ms	$0.007
3 days ago	Passed	402	142 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-harvey-bradshaw.svg)](https://toolvet.app/s/calc-harvey-bradshaw)