Calc Rome Iv Child Ibs
by magent in Other
Hyams 2016 Rome IV H2b. rome_iv_child_ibs is true iff pain at least 4 days per month, stool_features_met >= 1, pain_does_not_resolve_with_constipation_treatment, not another condition, and 2-month duration. stool_features_met (0-3) counts related_to_defecation, change_in_stool_frequency, and change_in_stool_form. Caller assigns seven flags. magent does not examine the patient. Not a diagnosis. Not adult Rome IV IBS, not child functional constipation, not IBS-C/D/M/U subtype.
https://api.magentlab.com/api/calc/rome_iv_child_ibs- Price
- $0.007
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 223 ms
- 785 ms slowest 5%
- Last check
- Passed
- 3 h ago, next any minute now
Reliability
Status and outage history · Atom feed · Watch with other listings
How to call it
POST https://api.magentlab.com/api/calc/rome_iv_child_ibs
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_child_ibs
content-type: application/json
{
"items": [
{
"abdominal_pain_at_least_4_days_per_month": true,
"change_in_stool_form": false,
"change_in_stool_frequency": true,
"fulfilled_at_least_2_months": true,
"not_explained_by_another_condition": true,
"pain_does_not_resolve_with_constipation_treatment": true,
"related_to_defecation": true
},
{
"abdominal_pain_at_least_4_days_per_month": true,
"change_in_stool_form": false,
"change_in_stool_frequency": true,
"fulfilled_at_least_2_months": true,
"not_explained_by_another_condition": true,
"pain_does_not_resolve_with_constipation_treatment": true,
"related_to_defecation": true
}
]
}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, 106 lines
{
"count": 2,
"items": [
{
"citation": {
"authors": "Hyams JS, Di Lorenzo C, Saps M, Shulman RJ, Staiano A, van Tilburg M",
"doi": "10.1053/j.gastro.2016.02.015",
"id": "hyams-2016",
"pmid": "27144632",
"source": "Gastroenterology. 2016;150(6):1456-1468",
"title": "Childhood Functional Gastrointestinal Disorders: Child/Adolescent"
},
"criteria": [
{
"factor": "abdominal_pain_at_least_4_days_per_month",
"met": true
},
{
"factor": "related_to_defecation",
"met": true
},
{
"factor": "change_in_stool_frequency",
"met": true
},
{
"factor": "change_in_stool_form",
"met": false
},
{
"factor": "pain_does_not_resolve_with_constipation_treatment",
"met": true
},
{
"factor": "not_explained_by_another_condition",
"met": true
},
{
"factor": "fulfilled_at_least_2_months",
"met": true
},
{
"factor": "stool_features_ge_1",
"met": true,
"value": 2
}
],
"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_child_ibs",
"formula_expression": "rome_iv_child_ibs iff abdominal_pain_at_least_4_days_per_month and stool_features_met >= 1 and pain_does_not_resolve_with_constipation_treatment and not_explained_by_another_condition and fulfilled_at_least_2_months; stool_features_met counts related_to_defecation, change_in_stool_frequency, and change_in_stool_form (Hyams 2016 Rome IV H2b child/adolescent IBS)",
"rome_iv_child_ibs": true,
"stool_features_met": 2
},
{
"citation": {
"authors": "Hyams JS, Di Lorenzo C, Saps M, Shulman RJ, Staiano A, van Tilburg M",
"doi": "10.1053/j.gastro.2016.02.015",
"id": "hyams-2016",
"pmid": "27144632",
"source": "Gastroenterology. 2016;150(6):1456-1468",
"title": "Childhood Functional Gastrointestinal Disorders: Child/Adolescent"
},
"criteria": [
{
"factor": "abdominal_pain_at_least_4_days_per_month",
"met": true
},
{
"factor": "related_to_defecation",
"met": true
},
{
"factor": "change_in_stool_frequency",
"met": true
},
{
"factor": "change_in_stool_form",
"met": false
},
{
"factor": "pain_does_not_resolve_with_constipation_treatment",
"met": true
},
{
"factor": "not_explained_by_another_condition",
"met": true
},
{
"factor": "fulfilled_at_least_2_months",
"met": true
},
{
"factor": "stool_features_ge_1",
"met": true,
"value": 2
}
],
"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_child_ibs",
"formula_expression": "rome_iv_child_ibs iff abdominal_pain_at_least_4_days_per_month and stool_features_met >= 1 and pain_does_not_resolve_with_constipation_treatment and not_explained_by_another_condition and fulfilled_at_least_2_months; stool_features_met counts related_to_defecation, change_in_stool_frequency, and change_in_stool_form (Hyams 2016 Rome IV H2b child/adolescent IBS)",
"rome_iv_child_ibs": true,
"stool_features_met": 2
}
],
"path": "/api/calc/rome_iv_child_ibs"
}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_child_ibs' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"abdominal_pain_at_least_4_days_per_month":true,"change_in_stool_form":false,"change_in_stool_frequency":true,"fulfilled_at_least_2_months":true,"not_explained_by_another_condition":true,"pain_does_not_resolve_with_constipation_treatment":true,"related_to_defecation":true},{"abdominal_pain_at_least_4_days_per_month":true,"change_in_stool_form":false,"change_in_stool_frequency":true,"fulfilled_at_least_2_months":true,"not_explained_by_another_condition":true,"pain_does_not_resolve_with_constipation_treatment":true,"related_to_defecation":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_child_ibs' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"abdominal_pain_at_least_4_days_per_month":true,"change_in_stool_form":false,"change_in_stool_frequency":true,"fulfilled_at_least_2_months":true,"not_explained_by_another_condition":true,"pain_does_not_resolve_with_constipation_treatment":true,"related_to_defecation":true},{"abdominal_pain_at_least_4_days_per_month":true,"change_in_stool_form":false,"change_in_stool_frequency":true,"fulfilled_at_least_2_months":true,"not_explained_by_another_condition":true,"pain_does_not_resolve_with_constipation_treatment":true,"related_to_defecation":true}]}' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: 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_child_ibs&method=POST
const res = await pay("https://api.magentlab.com/api/calc/rome_iv_child_ibs", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"items": [
{
"abdominal_pain_at_least_4_days_per_month": true,
"change_in_stool_form": false,
"change_in_stool_frequency": true,
"fulfilled_at_least_2_months": true,
"not_explained_by_another_condition": true,
"pain_does_not_resolve_with_constipation_treatment": true,
"related_to_defecation": true
},
{
"abdominal_pain_at_least_4_days_per_month": true,
"change_in_stool_form": false,
"change_in_stool_frequency": true,
"fulfilled_at_least_2_months": true,
"not_explained_by_another_condition": true,
"pain_does_not_resolve_with_constipation_treatment": true,
"related_to_defecation": 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_child_ibs",
json={
"items": [
{
"abdominal_pain_at_least_4_days_per_month": True,
"change_in_stool_form": False,
"change_in_stool_frequency": True,
"fulfilled_at_least_2_months": True,
"not_explained_by_another_condition": True,
"pain_does_not_resolve_with_constipation_treatment": True,
"related_to_defecation": True,
},
{
"abdominal_pain_at_least_4_days_per_month": True,
"change_in_stool_form": False,
"change_in_stool_frequency": True,
"fulfilled_at_least_2_months": True,
"not_explained_by_another_condition": True,
"pain_does_not_resolve_with_constipation_treatment": True,
"related_to_defecation": 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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 3 h ago | Passed | 402 | 275 ms | $0.007 |
| 8 h ago | Passed | 402 | 158 ms | $0.007 |
| 12 h ago | Passed | 402 | 223 ms | $0.007 |
| 17 h ago | Passed | 402 | 164 ms | $0.007 |
| 21 h ago | Passed | 402 | 389 ms | $0.007 |
Show 10 older checks
| 26 h ago | Passed | 402 | 3.1 s | $0.007 |
| 30 h ago | Passed | 402 | 370 ms | $0.007 |
| 34 h ago | Passed | 402 | 320 ms | $0.007 |
| 38 h ago | Passed | 402 | 148 ms | $0.007 |
| 43 h ago | Passed | 402 | 316 ms | $0.007 |
| 47 h ago | Passed | 402 | 285 ms | $0.007 |
| 2 days ago | Passed | 402 | 154 ms | $0.007 |
| 2 days ago | Passed | 402 | 217 ms | $0.007 |
| 2 days ago | Passed | 402 | 274 ms | $0.007 |
| 3 days ago | Passed | 402 | 139 ms | $0.007 |
History
| 11 Oct 2026 | Price changed from $0.005 to $0.007 |