71trust / 100

Calc Rome Iv Nbs

by magent in Other

x402 APIPassing, checked 4 h ago

Keefer 2016 Rome IV NBS (D2). rome_iv_nbs is true iff chronic or frequently recurring abdominal pain on narcotics, pain not explained by a GI diagnosis, at least two of three NBS features, last-3-months criteria, and 6-month onset. nbs_features_met is 0-3. Caller assigns seven flags. ~75 mg oral morphine equivalent is copy-only. magent does not examine the patient or judge opioid dose. Not a diagnosis, not CAPS, not opioid-induced constipation.

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

Run a free test callHow to call it

Reliability

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

How to call it

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

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_nbs
content-type: application/json

{
  "items": [
    {
      "chronic_or_frequently_recurring_abdominal_pain_on_narcotics": true,
      "fulfilled_last_3_months": true,
      "marked_worsening_when_dose_wanes_improvement_when_reinstituted": true,
      "onset_at_least_6_months": true,
      "pain_not_explained_by_current_or_previous_gi_diagnosis": true,
      "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics": true,
      "progression_of_frequency_duration_intensity_of_pain_episodes": false
    },
    {
      "chronic_or_frequently_recurring_abdominal_pain_on_narcotics": true,
      "fulfilled_last_3_months": true,
      "marked_worsening_when_dose_wanes_improvement_when_reinstituted": true,
      "onset_at_least_6_months": true,
      "pain_not_explained_by_current_or_previous_gi_diagnosis": true,
      "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics": true,
      "progression_of_frequency_duration_intensity_of_pain_episodes": false
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 106 lines
{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Keefer L, Drossman DA, Guthrie E, Simrén M, Tillisch K, Olden K, Whorwell PJ",
        "doi": "10.1053/j.gastro.2016.02.034",
        "id": "keefer-2016",
        "pmid": "27144628",
        "source": "Gastroenterology. 2016;150(6):1408-1419",
        "title": "Centrally Mediated Disorders of Gastrointestinal Pain"
      },
      "criteria": [
        {
          "factor": "chronic_or_frequently_recurring_abdominal_pain_on_narcotics",
          "met": true
        },
        {
          "factor": "pain_not_explained_by_current_or_previous_gi_diagnosis",
          "met": true
        },
        {
          "factor": "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics",
          "met": true
        },
        {
          "factor": "marked_worsening_when_dose_wanes_improvement_when_reinstituted",
          "met": true
        },
        {
          "factor": "progression_of_frequency_duration_intensity_of_pain_episodes",
          "met": false
        },
        {
          "factor": "nbs_features_ge_2",
          "met": true,
          "value": 2
        },
        {
          "factor": "fulfilled_last_3_months",
          "met": true
        },
        {
          "factor": "onset_at_least_6_months",
          "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_nbs",
      "formula_expression": "rome_iv_nbs iff chronic_or_frequently_recurring_abdominal_pain_on_narcotics and pain_not_explained_by_current_or_previous_gi_diagnosis and nbs_features_met >= 2 and fulfilled_last_3_months and onset_at_least_6_months; nbs_features_met counts pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics, marked_worsening_when_dose_wanes_improvement_when_reinstituted, and progression_of_frequency_duration_intensity_of_pain_episodes (Keefer 2016 Rome IV D2 Narcotic Bowel Syndrome / opioid-induced GI hyperalgesia)",
      "nbs_features_met": 2,
      "rome_iv_nbs": true
    },
    {
      "citation": {
        "authors": "Keefer L, Drossman DA, Guthrie E, Simrén M, Tillisch K, Olden K, Whorwell PJ",
        "doi": "10.1053/j.gastro.2016.02.034",
        "id": "keefer-2016",
        "pmid": "27144628",
        "source": "Gastroenterology. 2016;150(6):1408-1419",
        "title": "Centrally Mediated Disorders of Gastrointestinal Pain"
      },
      "criteria": [
        {
          "factor": "chronic_or_frequently_recurring_abdominal_pain_on_narcotics",
          "met": true
        },
        {
          "factor": "pain_not_explained_by_current_or_previous_gi_diagnosis",
          "met": true
        },
        {
          "factor": "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics",
          "met": true
        },
        {
          "factor": "marked_worsening_when_dose_wanes_improvement_when_reinstituted",
          "met": true
        },
        {
          "factor": "progression_of_frequency_duration_intensity_of_pain_episodes",
          "met": false
        },
        {
          "factor": "nbs_features_ge_2",
          "met": true,
          "value": 2
        },
        {
          "factor": "fulfilled_last_3_months",
          "met": true
        },
        {
          "factor": "onset_at_least_6_months",
          "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_nbs",
      "formula_expression": "rome_iv_nbs iff chronic_or_frequently_recurring_abdominal_pain_on_narcotics and pain_not_explained_by_current_or_previous_gi_diagnosis and nbs_features_met >= 2 and fulfilled_last_3_months and onset_at_least_6_months; nbs_features_met counts pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics, marked_worsening_when_dose_wanes_improvement_when_reinstituted, and progression_of_frequency_duration_intensity_of_pain_episodes (Keefer 2016 Rome IV D2 Narcotic Bowel Syndrome / opioid-induced GI hyperalgesia)",
      "nbs_features_met": 2,
      "rome_iv_nbs": true
    }
  ],
  "path": "/api/calc/rome_iv_nbs"
}

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_nbs' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"chronic_or_frequently_recurring_abdominal_pain_on_narcotics":true,"fulfilled_last_3_months":true,"marked_worsening_when_dose_wanes_improvement_when_reinstituted":true,"onset_at_least_6_months":true,"pain_not_explained_by_current_or_previous_gi_diagnosis":true,"pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics":true,"progression_of_frequency_duration_intensity_of_pain_episodes":false},{"chronic_or_frequently_recurring_abdominal_pain_on_narcotics":true,"fulfilled_last_3_months":true,"marked_worsening_when_dose_wanes_improvement_when_reinstituted":true,"onset_at_least_6_months":true,"pain_not_explained_by_current_or_previous_gi_diagnosis":true,"pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics":true,"progression_of_frequency_duration_intensity_of_pain_episodes":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/rome_iv_nbs' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"chronic_or_frequently_recurring_abdominal_pain_on_narcotics":true,"fulfilled_last_3_months":true,"marked_worsening_when_dose_wanes_improvement_when_reinstituted":true,"onset_at_least_6_months":true,"pain_not_explained_by_current_or_previous_gi_diagnosis":true,"pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics":true,"progression_of_frequency_duration_intensity_of_pain_episodes":false},{"chronic_or_frequently_recurring_abdominal_pain_on_narcotics":true,"fulfilled_last_3_months":true,"marked_worsening_when_dose_wanes_improvement_when_reinstituted":true,"onset_at_least_6_months":true,"pain_not_explained_by_current_or_previous_gi_diagnosis":true,"pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics":true,"progression_of_frequency_duration_intensity_of_pain_episodes":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%2Frome_iv_nbs&method=POST
const res = await pay("https://api.magentlab.com/api/calc/rome_iv_nbs", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "chronic_or_frequently_recurring_abdominal_pain_on_narcotics": true,
        "fulfilled_last_3_months": true,
        "marked_worsening_when_dose_wanes_improvement_when_reinstituted": true,
        "onset_at_least_6_months": true,
        "pain_not_explained_by_current_or_previous_gi_diagnosis": true,
        "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics": true,
        "progression_of_frequency_duration_intensity_of_pain_episodes": false
      },
      {
        "chronic_or_frequently_recurring_abdominal_pain_on_narcotics": true,
        "fulfilled_last_3_months": true,
        "marked_worsening_when_dose_wanes_improvement_when_reinstituted": true,
        "onset_at_least_6_months": true,
        "pain_not_explained_by_current_or_previous_gi_diagnosis": true,
        "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics": true,
        "progression_of_frequency_duration_intensity_of_pain_episodes": 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/rome_iv_nbs",
        json={
            "items": [
                {
                    "chronic_or_frequently_recurring_abdominal_pain_on_narcotics": True,
                    "fulfilled_last_3_months": True,
                    "marked_worsening_when_dose_wanes_improvement_when_reinstituted": True,
                    "onset_at_least_6_months": True,
                    "pain_not_explained_by_current_or_previous_gi_diagnosis": True,
                    "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics": True,
                    "progression_of_frequency_duration_intensity_of_pain_episodes": False,
                },
                {
                    "chronic_or_frequently_recurring_abdominal_pain_on_narcotics": True,
                    "fulfilled_last_3_months": True,
                    "marked_worsening_when_dose_wanes_improvement_when_reinstituted": True,
                    "onset_at_least_6_months": True,
                    "pain_not_explained_by_current_or_previous_gi_diagnosis": True,
                    "pain_worsens_or_incompletely_resolves_with_continued_or_escalating_narcotics": True,
                    "progression_of_frequency_duration_intensity_of_pain_episodes": 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

WhenResultHTTPTimePrice
4 h agoPassed402469 ms$0.007
9 h agoPassed402149 ms$0.007
13 h agoPassed402282 ms$0.007
18 h agoPassed402299 ms$0.007
22 h agoPassed402289 ms$0.007
Show 10 older checks
27 h agoPassed402160 ms$0.007
31 h agoPassed402329 ms$0.007
35 h agoPassed402382 ms$0.007
39 h agoPassed402466 ms$0.007
43 h agoPassed402378 ms$0.007
2 days agoPassed402160 ms$0.007
2 days agoPassed402305 ms$0.007
2 days agoPassed402224 ms$0.007
3 days agoPassed402381 ms$0.007
3 days agoPassed402297 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007