70trust / 100

Calc Sofa

x402 APIPassing, checked 4 h ago

SOFA (Sepsis-related Organ Failure Assessment) from Vincent 1996 Table 3: six organs 0-4, max 24, from PaO2/FiO2 with a ventilation gate, platelets, bilirubin, MAP and adrenergic agents, caller-assigned GCS, and creatinine or urine output. Deterministic published score with citation; not a Sepsis-3 diagnosis.

POST

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

Price: $0.007; per call in USDC
Uptime: 96.9%; last 30 days
Response time: 279 ms; 583 ms slowest 5%
Last check: Passed; 4 h ago, next any minute now

Run a free test call How to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.magentlab.com/api/calc/sofa

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/sofa
content-type: application/json

{
  "items": [
    {
      "bilirubin_mg_dl": 0.8,
      "bilirubin_umol_l": 17.1,
      "creatinine_mg_dl": 1,
      "creatinine_umol_l": 88.42,
      "dobutamine": false,
      "dopamine_ug_kg_min": 0,
      "epinephrine_ug_kg_min": 0,
      "fio2": 0.21,
      "gcs": 15,
      "map_mm_hg": 80,
      "norepinephrine_ug_kg_min": 0,
      "pao2_mm_hg": 96,
      "platelets_10e9_l": 200,
      "urine_output_ml_day": 1500,
      "ventilated": false
    },
    {
      "bilirubin_mg_dl": 0.8,
      "bilirubin_umol_l": 17.1,
      "creatinine_mg_dl": 1,
      "creatinine_umol_l": 88.42,
      "dobutamine": false,
      "dopamine_ug_kg_min": 0,
      "epinephrine_ug_kg_min": 0,
      "fio2": 0.21,
      "gcs": 15,
      "map_mm_hg": 80,
      "norepinephrine_ug_kg_min": 0,
      "pao2_mm_hg": 96,
      "platelets_10e9_l": 200,
      "urine_output_ml_day": 1500,
      "ventilated": 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, 110 lines

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Vincent JL, Moreno R, Takala J, Willatts S, De Mendonça A, Bruining H, Reinhart CK, Suter PM, Thijs LG",
        "doi": "10.1007/BF01709751",
        "id": "vincent-1996",
        "source": "Intensive Care Med. 1996;22(7):707-710",
        "title": "The SOFA (Sepsis-related Organ Failure Assessment) score to describe organ dysfunction/failure"
      },
      "components": [
        {
          "factor": "respiration",
          "points": 0,
          "present": false,
          "value": 457.14285714285717
        },
        {
          "factor": "coagulation",
          "points": 0,
          "present": false,
          "value": 200
        },
        {
          "factor": "liver",
          "points": 0,
          "present": false,
          "value": 0.8
        },
        {
          "factor": "cardiovascular",
          "points": 0,
          "present": false,
          "value": 80
        },
        {
          "factor": "cns",
          "points": 0,
          "present": false,
          "value": 15
        },
        {
          "factor": "renal",
          "points": 0,
          "present": false,
          "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": "sofa",
      "formula_expression": "SOFA = respiration + coagulation + liver + cardiovascular + cns + renal; each 0-4; max 24",
      "max_score": 24,
      "score": 0
    },
    {
      "citation": {
        "authors": "Vincent JL, Moreno R, Takala J, Willatts S, De Mendonça A, Bruining H, Reinhart CK, Suter PM, Thijs LG",
        "doi": "10.1007/BF01709751",
        "id": "vincent-1996",
        "source": "Intensive Care Med. 1996;22(7):707-710",
        "title": "The SOFA (Sepsis-related Organ Failure Assessment) score to describe organ dysfunction/failure"
      },
      "components": [
        {
          "factor": "respiration",
          "points": 0,
          "present": false,
          "value": 457.14285714285717
        },
        {
          "factor": "coagulation",
          "points": 0,
          "present": false,
          "value": 200
        },
        {
          "factor": "liver",
          "points": 0,
          "present": false,
          "value": 0.8
        },
        {
          "factor": "cardiovascular",
          "points": 0,
          "present": false,
          "value": 80
        },
        {
          "factor": "cns",
          "points": 0,
          "present": false,
          "value": 15
        },
        {
          "factor": "renal",
          "points": 0,
          "present": false,
          "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": "sofa",
      "formula_expression": "SOFA = respiration + coagulation + liver + cardiovascular + cns + renal; each 0-4; max 24",
      "max_score": 24,
      "score": 0
    }
  ],
  "path": "/api/calc/sofa"
}

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/sofa' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"bilirubin_mg_dl":0.8,"bilirubin_umol_l":17.1,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"dobutamine":false,"dopamine_ug_kg_min":0,"epinephrine_ug_kg_min":0,"fio2":0.21,"gcs":15,"map_mm_hg":80,"norepinephrine_ug_kg_min":0,"pao2_mm_hg":96,"platelets_10e9_l":200,"urine_output_ml_day":1500,"ventilated":false},{"bilirubin_mg_dl":0.8,"bilirubin_umol_l":17.1,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"dobutamine":false,"dopamine_ug_kg_min":0,"epinephrine_ug_kg_min":0,"fio2":0.21,"gcs":15,"map_mm_hg":80,"norepinephrine_ug_kg_min":0,"pao2_mm_hg":96,"platelets_10e9_l":200,"urine_output_ml_day":1500,"ventilated":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/sofa' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"bilirubin_mg_dl":0.8,"bilirubin_umol_l":17.1,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"dobutamine":false,"dopamine_ug_kg_min":0,"epinephrine_ug_kg_min":0,"fio2":0.21,"gcs":15,"map_mm_hg":80,"norepinephrine_ug_kg_min":0,"pao2_mm_hg":96,"platelets_10e9_l":200,"urine_output_ml_day":1500,"ventilated":false},{"bilirubin_mg_dl":0.8,"bilirubin_umol_l":17.1,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"dobutamine":false,"dopamine_ug_kg_min":0,"epinephrine_ug_kg_min":0,"fio2":0.21,"gcs":15,"map_mm_hg":80,"norepinephrine_ug_kg_min":0,"pao2_mm_hg":96,"platelets_10e9_l":200,"urine_output_ml_day":1500,"ventilated":false}]}' \
  | 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%2Fsofa&method=POST
const res = await pay("https://api.magentlab.com/api/calc/sofa", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "bilirubin_mg_dl": 0.8,
        "bilirubin_umol_l": 17.1,
        "creatinine_mg_dl": 1,
        "creatinine_umol_l": 88.42,
        "dobutamine": false,
        "dopamine_ug_kg_min": 0,
        "epinephrine_ug_kg_min": 0,
        "fio2": 0.21,
        "gcs": 15,
        "map_mm_hg": 80,
        "norepinephrine_ug_kg_min": 0,
        "pao2_mm_hg": 96,
        "platelets_10e9_l": 200,
        "urine_output_ml_day": 1500,
        "ventilated": false
      },
      {
        "bilirubin_mg_dl": 0.8,
        "bilirubin_umol_l": 17.1,
        "creatinine_mg_dl": 1,
        "creatinine_umol_l": 88.42,
        "dobutamine": false,
        "dopamine_ug_kg_min": 0,
        "epinephrine_ug_kg_min": 0,
        "fio2": 0.21,
        "gcs": 15,
        "map_mm_hg": 80,
        "norepinephrine_ug_kg_min": 0,
        "pao2_mm_hg": 96,
        "platelets_10e9_l": 200,
        "urine_output_ml_day": 1500,
        "ventilated": 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/sofa",
        json={
            "items": [
                {
                    "bilirubin_mg_dl": 0.8,
                    "bilirubin_umol_l": 17.1,
                    "creatinine_mg_dl": 1,
                    "creatinine_umol_l": 88.42,
                    "dobutamine": False,
                    "dopamine_ug_kg_min": 0,
                    "epinephrine_ug_kg_min": 0,
                    "fio2": 0.21,
                    "gcs": 15,
                    "map_mm_hg": 80,
                    "norepinephrine_ug_kg_min": 0,
                    "pao2_mm_hg": 96,
                    "platelets_10e9_l": 200,
                    "urine_output_ml_day": 1500,
                    "ventilated": False,
                },
                {
                    "bilirubin_mg_dl": 0.8,
                    "bilirubin_umol_l": 17.1,
                    "creatinine_mg_dl": 1,
                    "creatinine_umol_l": 88.42,
                    "dobutamine": False,
                    "dopamine_ug_kg_min": 0,
                    "epinephrine_ug_kg_min": 0,
                    "fio2": 0.21,
                    "gcs": 15,
                    "map_mm_hg": 80,
                    "norepinephrine_ug_kg_min": 0,
                    "pao2_mm_hg": 96,
                    "platelets_10e9_l": 200,
                    "urine_output_ml_day": 1500,
                    "ventilated": 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	210 ms	$0.007
9 h ago	Passed	402	334 ms	$0.007
14 h ago	Passed	402	380 ms	$0.007
18 h ago	Passed	402	248 ms	$0.007
23 h ago	Passed	402	151 ms	$0.007

Show 10 older checks

27 h ago	Passed	402	285 ms	$0.007
32 h ago	Passed	402	2.1 s	$0.007
36 h ago	Passed	402	283 ms	$0.007
40 h ago	Passed	402	220 ms	$0.007
44 h ago	Passed	402	279 ms	$0.007
2 days ago	Passed	402	316 ms	$0.007
2 days ago	Passed	402	488 ms	$0.007
2 days ago	Passed	402	377 ms	$0.007
3 days ago	Passed	402	220 ms	$0.007
3 days ago	Passed	402	238 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 70/ 100

Availability (30-day uptime)		29 / 30
Valid x402 challenge		15 / 15
Response time		10 / 10
Real paying agents (30 days)		6 / 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: 3 in 30 days
Paid calls: 6 in 30 days
Last paid call: 4 days ago

Source: x402 Bazaar settlement data.

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Trust score

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