67trust / 100

Calc Egri

x402 APIFailing, checked 4 h ago

El-Ganzouri 1996 simplified airway risk index (0/1/2): mouth opening >4 cm=0, <=4=1; thyromental >6.5 cm=0, 6.0-6.5=1, <6.0=2; original Mallampati 1/2/3 = 0/1/2 (class 4 not used); neck >90 deg=0, 80-90=1, <80=2; can prognath true=0, false=1; weight <90 kg=0, 90-110=1, >110=2; intubation history none/questionable/definite = 0/1/2. Max 12. High risk if score >=4. Not an intubation order; magent does not examine the airway.

POST

https://api.magentlab.com/api/calc/egri

Price: $0.007; per call in USDC
Uptime: 91.4%; last 30 days
Response time: 170 ms; 507 ms slowest 5%
Last check: Failed; 4 h ago, next any minute now

Run a free test call How to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 4 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/egri

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/egri
content-type: application/json

{
  "items": [
    {
      "can_prognath": true,
      "history_difficult_intubation": "none",
      "mallampati": 1,
      "mouth_opening_cm": 5,
      "neck_movement_deg": 100,
      "thyromental_cm": 7,
      "weight_kg": 70,
      "weight_lb": 154
    },
    {
      "can_prognath": true,
      "history_difficult_intubation": "none",
      "mallampati": 1,
      "mouth_opening_cm": 5,
      "neck_movement_deg": 100,
      "thyromental_cm": 7,
      "weight_kg": 70,
      "weight_lb": 154
    }
  ]
}

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, 142 lines

{
  "count": 2,
  "items": [
    {
      "can_prognath": true,
      "citation": {
        "authors": "el-Ganzouri AR, McCarthy RJ, Tuman KJ, Tanck EN, Ivankovich AD",
        "doi": "10.1097/00000539-199606000-00017",
        "id": "el-ganzouri-1996",
        "pmid": "8638791",
        "source": "Anesth Analg. 1996;82(6):1197-1204",
        "title": "Preoperative airway assessment: predictive value of a multivariate risk index"
      },
      "components": [
        {
          "factor": "mouth_opening_cm",
          "points": 0,
          "present": false,
          "value": 5
        },
        {
          "factor": "thyromental_cm",
          "points": 0,
          "present": false,
          "value": 7
        },
        {
          "factor": "mallampati",
          "points": 0,
          "present": false,
          "value": 1
        },
        {
          "factor": "neck_movement_deg",
          "points": 0,
          "present": false,
          "value": 100
        },
        {
          "factor": "can_prognath",
          "points": 0,
          "present": false,
          "value": true
        },
        {
          "factor": "weight",
          "points": 0,
          "present": false,
          "value": 70
        },
        {
          "factor": "history_difficult_intubation",
          "points": 0,
          "present": false,
          "value": "none"
        }
      ],
      "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.",
      "egri_band": "lt_4",
      "formula": "egri",
      "formula_expression": "EGRI = mouth_opening (>4 cm: 0, <=4 cm: 1) + thyromental (>6.5 cm: 0, 6.0-6.5: 1, <6.0: 2) + mallampati (1: 0, 2: 1, 3: 2) + neck_movement (>90 deg: 0, 80-90: 1, <80: 2) + can_prognath (true: 0, false: 1) + weight (<90 kg: 0, 90-110: 1, >110: 2) + history_difficult_intubation (none: 0, questionable: 1, definite: 2); max 12; high_risk if score >= 4",
      "high_risk": false,
      "history_difficult_intubation": "none",
      "mallampati": 1,
      "max_score": 12,
      "mouth_opening_cm": 5,
      "neck_movement_deg": 100,
      "score": 0,
      "thyromental_cm": 7,
      "weight_kg": 70
    },
    {
      "can_prognath": true,
      "citation": {
        "authors": "el-Ganzouri AR, McCarthy RJ, Tuman KJ, Tanck EN, Ivankovich AD",
        "doi": "10.1097/00000539-199606000-00017",
        "id": "el-ganzouri-1996",
        "pmid": "8638791",
        "source": "Anesth Analg. 1996;82(6):1197-1204",
        "title": "Preoperative airway assessment: predictive value of a multivariate risk index"
      },
      "components": [
        {
          "factor": "mouth_opening_cm",
          "points": 0,
          "present": false,
          "value": 5
        },
        {
          "factor": "thyromental_cm",
          "points": 0,
          "present": false,
          "value": 7
        },
        {
          "factor": "mallampati",
          "points": 0,
          "present": false,
          "value": 1
        },
        {
          "factor": "neck_movement_deg",
          "points": 0,
          "present": false,
          "value": 100
        },
        {
          "factor": "can_prognath",
          "points": 0,
          "present": false,
          "value": true
        },
        {
          "factor": "weight",
          "points": 0,
          "present": false,
          "value": 70
        },
        {
          "factor": "history_difficult_intubation",
          "points": 0,
          "present": false,
          "value": "none"
        }
      ],
      "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.",
      "egri_band": "lt_4",
      "formula": "egri",
      "formula_expression": "EGRI = mouth_opening (>4 cm: 0, <=4 cm: 1) + thyromental (>6.5 cm: 0, 6.0-6.5: 1, <6.0: 2) + mallampati (1: 0, 2: 1, 3: 2) + neck_movement (>90 deg: 0, 80-90: 1, <80: 2) + can_prognath (true: 0, false: 1) + weight (<90 kg: 0, 90-110: 1, >110: 2) + history_difficult_intubation (none: 0, questionable: 1, definite: 2); max 12; high_risk if score >= 4",
      "high_risk": false,
      "history_difficult_intubation": "none",
      "mallampati": 1,
      "max_score": 12,
      "mouth_opening_cm": 5,
      "neck_movement_deg": 100,
      "score": 0,
      "thyromental_cm": 7,
      "weight_kg": 70
    }
  ],
  "path": "/api/calc/egri"
}

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/egri' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"can_prognath":true,"history_difficult_intubation":"none","mallampati":1,"mouth_opening_cm":5,"neck_movement_deg":100,"thyromental_cm":7,"weight_kg":70,"weight_lb":154},{"can_prognath":true,"history_difficult_intubation":"none","mallampati":1,"mouth_opening_cm":5,"neck_movement_deg":100,"thyromental_cm":7,"weight_kg":70,"weight_lb":154}]}'

# 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/egri' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"can_prognath":true,"history_difficult_intubation":"none","mallampati":1,"mouth_opening_cm":5,"neck_movement_deg":100,"thyromental_cm":7,"weight_kg":70,"weight_lb":154},{"can_prognath":true,"history_difficult_intubation":"none","mallampati":1,"mouth_opening_cm":5,"neck_movement_deg":100,"thyromental_cm":7,"weight_kg":70,"weight_lb":154}]}' \
  | 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%2Fegri&method=POST
const res = await pay("https://api.magentlab.com/api/calc/egri", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "can_prognath": true,
        "history_difficult_intubation": "none",
        "mallampati": 1,
        "mouth_opening_cm": 5,
        "neck_movement_deg": 100,
        "thyromental_cm": 7,
        "weight_kg": 70,
        "weight_lb": 154
      },
      {
        "can_prognath": true,
        "history_difficult_intubation": "none",
        "mallampati": 1,
        "mouth_opening_cm": 5,
        "neck_movement_deg": 100,
        "thyromental_cm": 7,
        "weight_kg": 70,
        "weight_lb": 154
      }
    ]
  }),
});
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/egri",
        json={
            "items": [
                {
                    "can_prognath": True,
                    "history_difficult_intubation": "none",
                    "mallampati": 1,
                    "mouth_opening_cm": 5,
                    "neck_movement_deg": 100,
                    "thyromental_cm": 7,
                    "weight_kg": 70,
                    "weight_lb": 154,
                },
                {
                    "can_prognath": True,
                    "history_difficult_intubation": "none",
                    "mallampati": 1,
                    "mouth_opening_cm": 5,
                    "neck_movement_deg": 100,
                    "thyromental_cm": 7,
                    "weight_kg": 70,
                    "weight_lb": 154,
                },
            ],
        },
    )
    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	Timed out	-	-	-
9 h ago	Timed out	-	-	-
13 h ago	Timed out	-	-	-
18 h ago	Passed	402	145 ms	$0.007
23 h ago	Passed	402	175 ms	$0.007

Show 10 older checks

28 h ago	Passed	402	233 ms	$0.007
32 h ago	Passed	402	159 ms	$0.007
37 h ago	Passed	402	158 ms	$0.007
41 h ago	Passed	402	177 ms	$0.007
46 h ago	Passed	402	176 ms	$0.007
2 days ago	Passed	402	141 ms	$0.007
2 days ago	Passed	402	155 ms	$0.007
2 days ago	Passed	402	137 ms	$0.007
3 days ago	Passed	402	150 ms	$0.007
3 days ago	Passed	402	161 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 67/ 100

Availability (30-day uptime)		27 / 30
Valid x402 challenge		15 / 15
Response time		10 / 10
Real paying agents (30 days)		5 / 15
Charges what it lists		0 / 10
Security scan		10 / 10
Verified owner		0 / 10

How the score works

Payment terms

Price: $0.007 per call
Listed at: $0.005 (charges more)
Token: USDC
Networks: Base
Pays to: 0x836B…9Ee2

Real usage

Paying agents: 2 in 30 days
Paid calls: 5 in 30 days
Last paid call: 5 days ago

Source: x402 Bazaar settlement data.

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Trust score

[![ToolVet trust score](https://toolvet.app/badge/calc-egri.svg)](https://toolvet.app/s/calc-egri)