Calc Braden
by magent in Security & trust
Bergstrom 1987 Braden Scale: six caller-assigned subscales — sensory_perception, moisture, activity, mobility, nutrition (each 1-4) and friction_shear (1-3). magent sums only (range 6-23; lower is higher pressure-sore risk) and returns at_risk true iff score ≤16, the only cutoff in that paper's predictive-validity studies. magent does not examine the patient. Not a medical device, not a diagnosis, and not a treatment plan.
https://api.magentlab.com/api/calc/braden- Price
- $0.007
- per call in USDC
- Uptime
- 91.4%
- last 30 days
- Response time
- 226 ms
- 368 ms slowest 5%
- Last check
- Failed
- 5 h ago, next any minute now
Reliability
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/braden
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/braden
content-type: application/json
{
"items": [
{
"activity": 1,
"friction_shear": 1,
"mobility": 1,
"moisture": 1,
"nutrition": 1,
"sensory_perception": 1
},
{
"activity": 1,
"friction_shear": 1,
"mobility": 1,
"moisture": 1,
"nutrition": 1,
"sensory_perception": 1
}
]
}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, 114 lines
{
"count": 2,
"items": [
{
"at_risk": true,
"citation": {
"authors": "Bergstrom N, Braden BJ, Laguzza A, Holman V",
"doi": "10.1097/00006199-198707000-00002",
"id": "bergstrom-1987",
"pmid": "3299278",
"source": "Nurs Res. 1987;36(4):205-210",
"title": "The Braden Scale for Predicting Pressure Sore Risk"
},
"components": [
{
"factor": "sensory_perception",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "moisture",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "activity",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "mobility",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "nutrition",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "friction_shear",
"points": 1,
"present": true,
"value": 1
}
],
"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": "braden",
"formula_expression": "Braden = sensory_perception + moisture + activity + mobility + nutrition + friction_shear; Bergstrom 1987 caller-assigned points; 1-4 except friction_shear 1-3; range 6-23; at_risk iff score ≤ 16",
"max_score": 23,
"score": 6
},
{
"at_risk": true,
"citation": {
"authors": "Bergstrom N, Braden BJ, Laguzza A, Holman V",
"doi": "10.1097/00006199-198707000-00002",
"id": "bergstrom-1987",
"pmid": "3299278",
"source": "Nurs Res. 1987;36(4):205-210",
"title": "The Braden Scale for Predicting Pressure Sore Risk"
},
"components": [
{
"factor": "sensory_perception",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "moisture",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "activity",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "mobility",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "nutrition",
"points": 1,
"present": true,
"value": 1
},
{
"factor": "friction_shear",
"points": 1,
"present": true,
"value": 1
}
],
"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": "braden",
"formula_expression": "Braden = sensory_perception + moisture + activity + mobility + nutrition + friction_shear; Bergstrom 1987 caller-assigned points; 1-4 except friction_shear 1-3; range 6-23; at_risk iff score ≤ 16",
"max_score": 23,
"score": 6
}
],
"path": "/api/calc/braden"
}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/braden' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"activity":1,"friction_shear":1,"mobility":1,"moisture":1,"nutrition":1,"sensory_perception":1},{"activity":1,"friction_shear":1,"mobility":1,"moisture":1,"nutrition":1,"sensory_perception":1}]}'
# 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/braden' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"activity":1,"friction_shear":1,"mobility":1,"moisture":1,"nutrition":1,"sensory_perception":1},{"activity":1,"friction_shear":1,"mobility":1,"moisture":1,"nutrition":1,"sensory_perception":1}]}' \
| 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%2Fbraden&method=POST
const res = await pay("https://api.magentlab.com/api/calc/braden", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"items": [
{
"activity": 1,
"friction_shear": 1,
"mobility": 1,
"moisture": 1,
"nutrition": 1,
"sensory_perception": 1
},
{
"activity": 1,
"friction_shear": 1,
"mobility": 1,
"moisture": 1,
"nutrition": 1,
"sensory_perception": 1
}
]
}),
});
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/braden",
json={
"items": [
{
"activity": 1,
"friction_shear": 1,
"mobility": 1,
"moisture": 1,
"nutrition": 1,
"sensory_perception": 1,
},
{
"activity": 1,
"friction_shear": 1,
"mobility": 1,
"moisture": 1,
"nutrition": 1,
"sensory_perception": 1,
},
],
},
)
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 | - | - | - |
| 10 h ago | Timed out | - | - | - |
| 15 h ago | Timed out | - | - | - |
| 19 h ago | Passed | 402 | 352 ms | $0.007 |
| 24 h ago | Passed | 402 | 286 ms | $0.007 |
Show 10 older checks
| 29 h ago | Passed | 402 | 241 ms | $0.007 |
| 34 h ago | Passed | 402 | 334 ms | $0.007 |
| 38 h ago | Passed | 402 | 145 ms | $0.007 |
| 43 h ago | Passed | 402 | 358 ms | $0.007 |
| 47 h ago | Passed | 402 | 307 ms | $0.007 |
| 2 days ago | Passed | 402 | 240 ms | $0.007 |
| 2 days ago | Passed | 402 | 236 ms | $0.007 |
| 2 days ago | Passed | 402 | 1.1 s | $0.007 |
| 3 days ago | Passed | 402 | 148 ms | $0.007 |
| 3 days ago | Passed | 402 | 142 ms | $0.007 |
History
| 11 Oct 2026 | Price changed from $0.005 to $0.007 |