Calc Osiris
by magent in Security & trust
Sedrine 2002 Osteoporosis Index of Risk (OSIRIS). Index = (-0.2 × age) + (0.2 × weight_kg) + 2 if current HRT + (-2) if prior low-impact fracture. Risk low if score > +1, high if score < -3, intermediate otherwise including exact +1 and -3. Age 18-120; weight_kg or weight_lb; current_hrt and prior_low_impact_fracture true/false. Not a medical device, not FRAX, not a DXA order. Derivation was postmenopausal Western European women.
https://api.magentlab.com/api/calc/osiris- Price
- $0.007
- per call in USDC
- Uptime
- 97.0%
- last 30 days
- Response time
- 184 ms
- 578 ms slowest 5%
- Last check
- Failed
- 3 h ago, next any minute now
Reliability
Latest check failed 3 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/osiris
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/osiris
content-type: application/json
{
"items": [
{
"age": 55,
"current_hrt": true,
"prior_low_impact_fracture": false,
"weight_kg": 70,
"weight_lb": 154.3236
},
{
"age": 55,
"current_hrt": true,
"prior_low_impact_fracture": false,
"weight_kg": 70,
"weight_lb": 154.3236
}
]
}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, 44 lines
{
"count": 2,
"items": [
{
"age": 55,
"citation": {
"authors": "Sedrine WB, Chevallier T, Zegels B, Kvasz A, Micheletti MC, Gelas B, Reginster JY",
"doi": "10.1080/gye.16.3.245.250",
"id": "sedrine-2002",
"pmid": "12192897",
"source": "Gynecol Endocrinol. 2002;16(3):245-250",
"title": "Development and assessment of the Osteoporosis Index of Risk (OSIRIS) to facilitate selection of women for bone densitometry"
},
"current_hrt": 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": "osiris",
"formula_expression": "OSIRIS = (-0.2 * age) + (0.2 * weight_kg) + (2 if current_hrt) + (-2 if prior_low_impact_fracture); low if score > +1; high if score < -3; intermediate otherwise (including exact +1 and exact -3)",
"osiris_index": 5,
"prior_low_impact_fracture": false,
"risk": "low",
"weight_kg": 70
},
{
"age": 55,
"citation": {
"authors": "Sedrine WB, Chevallier T, Zegels B, Kvasz A, Micheletti MC, Gelas B, Reginster JY",
"doi": "10.1080/gye.16.3.245.250",
"id": "sedrine-2002",
"pmid": "12192897",
"source": "Gynecol Endocrinol. 2002;16(3):245-250",
"title": "Development and assessment of the Osteoporosis Index of Risk (OSIRIS) to facilitate selection of women for bone densitometry"
},
"current_hrt": 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": "osiris",
"formula_expression": "OSIRIS = (-0.2 * age) + (0.2 * weight_kg) + (2 if current_hrt) + (-2 if prior_low_impact_fracture); low if score > +1; high if score < -3; intermediate otherwise (including exact +1 and exact -3)",
"osiris_index": 5,
"prior_low_impact_fracture": false,
"risk": "low",
"weight_kg": 70
}
],
"path": "/api/calc/osiris"
}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/osiris' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"age":55,"current_hrt":true,"prior_low_impact_fracture":false,"weight_kg":70,"weight_lb":154.3236},{"age":55,"current_hrt":true,"prior_low_impact_fracture":false,"weight_kg":70,"weight_lb":154.3236}]}'
# 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/osiris' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"age":55,"current_hrt":true,"prior_low_impact_fracture":false,"weight_kg":70,"weight_lb":154.3236},{"age":55,"current_hrt":true,"prior_low_impact_fracture":false,"weight_kg":70,"weight_lb":154.3236}]}' \
| 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%2Fosiris&method=POST
const res = await pay("https://api.magentlab.com/api/calc/osiris", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"items": [
{
"age": 55,
"current_hrt": true,
"prior_low_impact_fracture": false,
"weight_kg": 70,
"weight_lb": 154.3236
},
{
"age": 55,
"current_hrt": true,
"prior_low_impact_fracture": false,
"weight_kg": 70,
"weight_lb": 154.3236
}
]
}),
});
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/osiris",
json={
"items": [
{
"age": 55,
"current_hrt": True,
"prior_low_impact_fracture": False,
"weight_kg": 70,
"weight_lb": 154.3236,
},
{
"age": 55,
"current_hrt": True,
"prior_low_impact_fracture": False,
"weight_kg": 70,
"weight_lb": 154.3236,
},
],
},
)
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 | Timed out | - | - | - |
| 8 h ago | Passed | 402 | 144 ms | $0.007 |
| 13 h ago | Passed | 402 | 275 ms | $0.007 |
| 18 h ago | Passed | 402 | 271 ms | $0.007 |
| 22 h ago | Passed | 402 | 144 ms | $0.007 |
Show 10 older checks
| 27 h ago | Passed | 402 | 147 ms | $0.007 |
| 31 h ago | Passed | 402 | 193 ms | $0.007 |
| 36 h ago | Passed | 402 | 142 ms | $0.007 |
| 40 h ago | Passed | 402 | 262 ms | $0.007 |
| 44 h ago | Passed | 402 | 230 ms | $0.007 |
| 2 days ago | Passed | 402 | 159 ms | $0.007 |
| 2 days ago | Passed | 402 | 252 ms | $0.007 |
| 2 days ago | Passed | 402 | 140 ms | $0.007 |
| 3 days ago | Passed | 402 | 144 ms | $0.007 |
| 3 days ago | Passed | 402 | 284 ms | $0.007 |
History
| 11 Oct 2026 | Price changed from $0.005 to $0.007 |