ToolVet
71trust / 100

Calc Rome Iv Chs

by magent in Other

x402 APIPassing, checked 2 h ago

Stanghellini 2016 Rome IV CHS. rome_iv_chs is true iff stereotypical episodic vomiting resembling CVS, presentation after prolonged excessive cannabis use, relief with sustained cannabis cessation, criteria fulfilled for the last 3 months, and onset at least 6 months prior. pathologic_bathing is supportive and not required. Caller assigns six flags. magent does not take a cannabis history. Not a diagnosis, not cyclic vomiting syndrome.

POST
https://api.magentlab.com/api/calc/rome_iv_chs
Price
$0.007
per call in USDC
Uptime
100%
last 30 days
Response time
154 ms
345 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.magentlab.com/api/calc/rome_iv_chs

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/rome_iv_chs
content-type: application/json

{
  "items": [
    {
      "after_prolonged_excessive_cannabis": true,
      "fulfilled_last_3_months": true,
      "onset_at_least_6_months": true,
      "pathologic_bathing": true,
      "relief_with_sustained_cessation": true,
      "stereotypical_episodic_vomiting": true
    },
    {
      "after_prolonged_excessive_cannabis": true,
      "fulfilled_last_3_months": true,
      "onset_at_least_6_months": true,
      "pathologic_bathing": true,
      "relief_with_sustained_cessation": true,
      "stereotypical_episodic_vomiting": true
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 88 lines
{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Stanghellini V, Chan FKL, Hasler WL, Malagelada JR, Suzuki H, Tack J, Talley NJ",
        "doi": "10.1053/j.gastro.2016.02.011",
        "id": "stanghellini-2016",
        "pmid": "27147122",
        "source": "Gastroenterology. 2016;150(6):1380-1392",
        "title": "Gastroduodenal Disorders"
      },
      "criteria": [
        {
          "factor": "stereotypical_episodic_vomiting",
          "met": true
        },
        {
          "factor": "after_prolonged_excessive_cannabis",
          "met": true
        },
        {
          "factor": "relief_with_sustained_cessation",
          "met": true
        },
        {
          "factor": "fulfilled_last_3_months",
          "met": true
        },
        {
          "factor": "onset_at_least_6_months",
          "met": true
        },
        {
          "factor": "pathologic_bathing",
          "met": true
        }
      ],
      "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": "rome_iv_chs",
      "formula_expression": "rome_iv_chs iff stereotypical_episodic_vomiting and after_prolonged_excessive_cannabis and relief_with_sustained_cessation and fulfilled_last_3_months and onset_at_least_6_months; pathologic_bathing is supportive and not required (Stanghellini 2016 Rome IV cannabinoid hyperemesis syndrome)",
      "pathologic_bathing": true,
      "rome_iv_chs": true
    },
    {
      "citation": {
        "authors": "Stanghellini V, Chan FKL, Hasler WL, Malagelada JR, Suzuki H, Tack J, Talley NJ",
        "doi": "10.1053/j.gastro.2016.02.011",
        "id": "stanghellini-2016",
        "pmid": "27147122",
        "source": "Gastroenterology. 2016;150(6):1380-1392",
        "title": "Gastroduodenal Disorders"
      },
      "criteria": [
        {
          "factor": "stereotypical_episodic_vomiting",
          "met": true
        },
        {
          "factor": "after_prolonged_excessive_cannabis",
          "met": true
        },
        {
          "factor": "relief_with_sustained_cessation",
          "met": true
        },
        {
          "factor": "fulfilled_last_3_months",
          "met": true
        },
        {
          "factor": "onset_at_least_6_months",
          "met": true
        },
        {
          "factor": "pathologic_bathing",
          "met": true
        }
      ],
      "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": "rome_iv_chs",
      "formula_expression": "rome_iv_chs iff stereotypical_episodic_vomiting and after_prolonged_excessive_cannabis and relief_with_sustained_cessation and fulfilled_last_3_months and onset_at_least_6_months; pathologic_bathing is supportive and not required (Stanghellini 2016 Rome IV cannabinoid hyperemesis syndrome)",
      "pathologic_bathing": true,
      "rome_iv_chs": true
    }
  ],
  "path": "/api/calc/rome_iv_chs"
}

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/rome_iv_chs' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"after_prolonged_excessive_cannabis":true,"fulfilled_last_3_months":true,"onset_at_least_6_months":true,"pathologic_bathing":true,"relief_with_sustained_cessation":true,"stereotypical_episodic_vomiting":true},{"after_prolonged_excessive_cannabis":true,"fulfilled_last_3_months":true,"onset_at_least_6_months":true,"pathologic_bathing":true,"relief_with_sustained_cessation":true,"stereotypical_episodic_vomiting":true}]}'

# 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/rome_iv_chs' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"after_prolonged_excessive_cannabis":true,"fulfilled_last_3_months":true,"onset_at_least_6_months":true,"pathologic_bathing":true,"relief_with_sustained_cessation":true,"stereotypical_episodic_vomiting":true},{"after_prolonged_excessive_cannabis":true,"fulfilled_last_3_months":true,"onset_at_least_6_months":true,"pathologic_bathing":true,"relief_with_sustained_cessation":true,"stereotypical_episodic_vomiting":true}]}' \
  | 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%2Frome_iv_chs&method=POST
const res = await pay("https://api.magentlab.com/api/calc/rome_iv_chs", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "after_prolonged_excessive_cannabis": true,
        "fulfilled_last_3_months": true,
        "onset_at_least_6_months": true,
        "pathologic_bathing": true,
        "relief_with_sustained_cessation": true,
        "stereotypical_episodic_vomiting": true
      },
      {
        "after_prolonged_excessive_cannabis": true,
        "fulfilled_last_3_months": true,
        "onset_at_least_6_months": true,
        "pathologic_bathing": true,
        "relief_with_sustained_cessation": true,
        "stereotypical_episodic_vomiting": true
      }
    ]
  }),
});
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/rome_iv_chs",
        json={
            "items": [
                {
                    "after_prolonged_excessive_cannabis": True,
                    "fulfilled_last_3_months": True,
                    "onset_at_least_6_months": True,
                    "pathologic_bathing": True,
                    "relief_with_sustained_cessation": True,
                    "stereotypical_episodic_vomiting": True,
                },
                {
                    "after_prolonged_excessive_cannabis": True,
                    "fulfilled_last_3_months": True,
                    "onset_at_least_6_months": True,
                    "pathologic_bathing": True,
                    "relief_with_sustained_cessation": True,
                    "stereotypical_episodic_vomiting": True,
                },
            ],
        },
    )
    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

WhenResultHTTPTimePrice
2 h agoPassed402161 ms$0.007
7 h agoPassed402226 ms$0.007
12 h agoPassed402142 ms$0.007
16 h agoPassed402157 ms$0.007
21 h agoPassed402265 ms$0.007
Show 10 older checks
25 h agoPassed402240 ms$0.007
29 h agoPassed402140 ms$0.007
33 h agoPassed402268 ms$0.007
38 h agoPassed402216 ms$0.007
42 h agoPassed402152 ms$0.007
46 h agoPassed402147 ms$0.007
2 days agoPassed402169 ms$0.007
2 days agoPassed402341 ms$0.007
2 days agoPassed402149 ms$0.007
3 days agoPassed402158 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007