Calc Scoff
by magent in Other
Morgan 1999 SCOFF questionnaire: five caller-assigned yes/no flags (make yourself sick, lost control over eating, lost more than one stone / 14 lb in 3 months, believe fat when others say thin, food dominates life), 1 point each, max 5. Screen-positive when two or more answers are affirmative (score ≥2). Deterministic published score with citation; not a diagnosis of an eating disorder and not a medical device. magent does not interview the patient or interpret individual items.
https://api.magentlab.com/api/calc/scoff- Price
- $0.007
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 164 ms
- 370 ms slowest 5%
- Last check
- Passed
- 4 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/scoff
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/scoff
content-type: application/json
{
"items": [
{
"believe_fat_when_others_say_thin": false,
"food_dominates_life": false,
"lost_control_over_eating": false,
"lost_more_than_one_stone_3_months": false,
"make_yourself_sick": false
},
{
"believe_fat_when_others_say_thin": false,
"food_dominates_life": false,
"lost_control_over_eating": false,
"lost_more_than_one_stone_3_months": false,
"make_yourself_sick": false
}
]
}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, 92 lines
{
"count": 2,
"items": [
{
"citation": {
"authors": "Morgan JF, Reid F, Lacey JH",
"doi": "10.1136/bmj.319.7223.1467",
"id": "morgan-1999",
"pmid": "10582927",
"source": "BMJ. 1999;319(7223):1467-1468",
"title": "The SCOFF questionnaire: assessment of a new screening tool for eating disorders"
},
"components": [
{
"factor": "make_yourself_sick",
"points": 0,
"present": false
},
{
"factor": "lost_control_over_eating",
"points": 0,
"present": false
},
{
"factor": "lost_more_than_one_stone_3_months",
"points": 0,
"present": false
},
{
"factor": "believe_fat_when_others_say_thin",
"points": 0,
"present": false
},
{
"factor": "food_dominates_life",
"points": 0,
"present": false
}
],
"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": "scoff",
"formula_expression": "SCOFF = make_yourself_sick + lost_control_over_eating + lost_more_than_one_stone_3_months + believe_fat_when_others_say_thin + food_dominates_life; each 1 if true; max 5",
"max_score": 5,
"score": 0,
"screen_positive": false
},
{
"citation": {
"authors": "Morgan JF, Reid F, Lacey JH",
"doi": "10.1136/bmj.319.7223.1467",
"id": "morgan-1999",
"pmid": "10582927",
"source": "BMJ. 1999;319(7223):1467-1468",
"title": "The SCOFF questionnaire: assessment of a new screening tool for eating disorders"
},
"components": [
{
"factor": "make_yourself_sick",
"points": 0,
"present": false
},
{
"factor": "lost_control_over_eating",
"points": 0,
"present": false
},
{
"factor": "lost_more_than_one_stone_3_months",
"points": 0,
"present": false
},
{
"factor": "believe_fat_when_others_say_thin",
"points": 0,
"present": false
},
{
"factor": "food_dominates_life",
"points": 0,
"present": false
}
],
"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": "scoff",
"formula_expression": "SCOFF = make_yourself_sick + lost_control_over_eating + lost_more_than_one_stone_3_months + believe_fat_when_others_say_thin + food_dominates_life; each 1 if true; max 5",
"max_score": 5,
"score": 0,
"screen_positive": false
}
],
"path": "/api/calc/scoff"
}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/scoff' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"believe_fat_when_others_say_thin":false,"food_dominates_life":false,"lost_control_over_eating":false,"lost_more_than_one_stone_3_months":false,"make_yourself_sick":false},{"believe_fat_when_others_say_thin":false,"food_dominates_life":false,"lost_control_over_eating":false,"lost_more_than_one_stone_3_months":false,"make_yourself_sick":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/scoff' \
-H 'content-type: application/json' \
--data-raw '{"items":[{"believe_fat_when_others_say_thin":false,"food_dominates_life":false,"lost_control_over_eating":false,"lost_more_than_one_stone_3_months":false,"make_yourself_sick":false},{"believe_fat_when_others_say_thin":false,"food_dominates_life":false,"lost_control_over_eating":false,"lost_more_than_one_stone_3_months":false,"make_yourself_sick":false}]}' \
| 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%2Fscoff&method=POST
const res = await pay("https://api.magentlab.com/api/calc/scoff", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"items": [
{
"believe_fat_when_others_say_thin": false,
"food_dominates_life": false,
"lost_control_over_eating": false,
"lost_more_than_one_stone_3_months": false,
"make_yourself_sick": false
},
{
"believe_fat_when_others_say_thin": false,
"food_dominates_life": false,
"lost_control_over_eating": false,
"lost_more_than_one_stone_3_months": false,
"make_yourself_sick": 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/scoff",
json={
"items": [
{
"believe_fat_when_others_say_thin": False,
"food_dominates_life": False,
"lost_control_over_eating": False,
"lost_more_than_one_stone_3_months": False,
"make_yourself_sick": False,
},
{
"believe_fat_when_others_say_thin": False,
"food_dominates_life": False,
"lost_control_over_eating": False,
"lost_more_than_one_stone_3_months": False,
"make_yourself_sick": 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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 4 h ago | Passed | 402 | 254 ms | $0.007 |
| 8 h ago | Passed | 402 | 244 ms | $0.007 |
| 13 h ago | Passed | 402 | 159 ms | $0.007 |
| 18 h ago | Passed | 402 | 216 ms | $0.007 |
| 22 h ago | Passed | 402 | 233 ms | $0.007 |
Show 10 older checks
| 26 h ago | Passed | 402 | 150 ms | $0.007 |
| 30 h ago | Passed | 402 | 293 ms | $0.007 |
| 35 h ago | Passed | 402 | 236 ms | $0.007 |
| 39 h ago | Passed | 402 | 150 ms | $0.007 |
| 43 h ago | Passed | 402 | 229 ms | $0.007 |
| 47 h ago | Passed | 402 | 883 ms | $0.007 |
| 2 days ago | Passed | 402 | 218 ms | $0.007 |
| 2 days ago | Passed | 402 | 137 ms | $0.007 |
| 3 days ago | Passed | 402 | 164 ms | $0.007 |
| 3 days ago | Passed | 402 | 133 ms | $0.007 |
History
| 11 Oct 2026 | Price changed from $0.005 to $0.007 |