69trust / 100

Calc Phq 9

by magent in Other

x402 APIFailing, checked 2 h ago

Kroenke 2001 PHQ-9 from nine caller-assigned DSM-IV depression items as integers 0-3 (0 not at all, 1 several days, 2 more than half the days, 3 nearly every day). magent does not interpret the items. Total 0-27. Severity: 0-4 none_minimal, 5-9 mild, 10-14 moderate, 15-19 moderately_severe, 20-27 severe. Returns screen_ge_10 (score ≥10; this paper 88% sensitivity and 88% specificity for major depression). Not a diagnosis, not a treatment order, not GAD-7, and not PHQ-2/PHQ-8.

POST

https://api.magentlab.com/api/calc/phq_9

Price: $0.007; per call in USDC
Uptime: 97.0%; last 30 days
Response time: 166 ms; 557 ms slowest 5%
Last check: Failed; 2 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 2 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/phq_9

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/phq_9
content-type: application/json

{
  "items": [
    {
      "anhedonia": 0,
      "appetite": 0,
      "concentration": 0,
      "depressed": 0,
      "energy": 0,
      "failure": 0,
      "psychomotor": 0,
      "self_harm": 0,
      "sleep": 0
    },
    {
      "anhedonia": 0,
      "appetite": 0,
      "concentration": 0,
      "depressed": 0,
      "energy": 0,
      "failure": 0,
      "psychomotor": 0,
      "self_harm": 0,
      "sleep": 0
    }
  ]
}

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, 152 lines

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Kroenke K, Spitzer RL, Williams JBW",
        "doi": "10.1046/j.1525-1497.2001.016009606.x",
        "id": "kroenke-2001",
        "pmid": "11556941",
        "source": "J Gen Intern Med. 2001;16(9):606-613",
        "title": "The PHQ-9: validity of a brief depression severity measure"
      },
      "components": [
        {
          "factor": "anhedonia",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "depressed",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "sleep",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "energy",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "appetite",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "failure",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "concentration",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "psychomotor",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "self_harm",
          "points": 0,
          "present": true,
          "value": 0
        }
      ],
      "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": "phq_9",
      "formula_expression": "PHQ-9 = anhedonia + depressed + sleep + energy + appetite + failure + concentration + psychomotor + self_harm; each caller-assigned 0-3; max 27",
      "max_score": 27,
      "score": 0,
      "screen_ge_10": false,
      "severity": "none_minimal"
    },
    {
      "citation": {
        "authors": "Kroenke K, Spitzer RL, Williams JBW",
        "doi": "10.1046/j.1525-1497.2001.016009606.x",
        "id": "kroenke-2001",
        "pmid": "11556941",
        "source": "J Gen Intern Med. 2001;16(9):606-613",
        "title": "The PHQ-9: validity of a brief depression severity measure"
      },
      "components": [
        {
          "factor": "anhedonia",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "depressed",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "sleep",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "energy",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "appetite",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "failure",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "concentration",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "psychomotor",
          "points": 0,
          "present": true,
          "value": 0
        },
        {
          "factor": "self_harm",
          "points": 0,
          "present": true,
          "value": 0
        }
      ],
      "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": "phq_9",
      "formula_expression": "PHQ-9 = anhedonia + depressed + sleep + energy + appetite + failure + concentration + psychomotor + self_harm; each caller-assigned 0-3; max 27",
      "max_score": 27,
      "score": 0,
      "screen_ge_10": false,
      "severity": "none_minimal"
    }
  ],
  "path": "/api/calc/phq_9"
}

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/phq_9' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"anhedonia":0,"appetite":0,"concentration":0,"depressed":0,"energy":0,"failure":0,"psychomotor":0,"self_harm":0,"sleep":0},{"anhedonia":0,"appetite":0,"concentration":0,"depressed":0,"energy":0,"failure":0,"psychomotor":0,"self_harm":0,"sleep":0}]}'

# 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/phq_9' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"anhedonia":0,"appetite":0,"concentration":0,"depressed":0,"energy":0,"failure":0,"psychomotor":0,"self_harm":0,"sleep":0},{"anhedonia":0,"appetite":0,"concentration":0,"depressed":0,"energy":0,"failure":0,"psychomotor":0,"self_harm":0,"sleep":0}]}' \
  | 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%2Fphq_9&method=POST
const res = await pay("https://api.magentlab.com/api/calc/phq_9", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "anhedonia": 0,
        "appetite": 0,
        "concentration": 0,
        "depressed": 0,
        "energy": 0,
        "failure": 0,
        "psychomotor": 0,
        "self_harm": 0,
        "sleep": 0
      },
      {
        "anhedonia": 0,
        "appetite": 0,
        "concentration": 0,
        "depressed": 0,
        "energy": 0,
        "failure": 0,
        "psychomotor": 0,
        "self_harm": 0,
        "sleep": 0
      }
    ]
  }),
});
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/phq_9",
        json={
            "items": [
                {
                    "anhedonia": 0,
                    "appetite": 0,
                    "concentration": 0,
                    "depressed": 0,
                    "energy": 0,
                    "failure": 0,
                    "psychomotor": 0,
                    "self_harm": 0,
                    "sleep": 0,
                },
                {
                    "anhedonia": 0,
                    "appetite": 0,
                    "concentration": 0,
                    "depressed": 0,
                    "energy": 0,
                    "failure": 0,
                    "psychomotor": 0,
                    "self_harm": 0,
                    "sleep": 0,
                },
            ],
        },
    )
    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
2 h ago	Timed out	-	-	-
6 h ago	Passed	402	313 ms	$0.007
11 h ago	Passed	402	160 ms	$0.007
16 h ago	Passed	402	142 ms	$0.007
21 h ago	Passed	402	289 ms	$0.007

Show 10 older checks

25 h ago	Passed	402	388 ms	$0.007
30 h ago	Passed	402	168 ms	$0.007
34 h ago	Passed	402	272 ms	$0.007
38 h ago	Passed	402	163 ms	$0.007
42 h ago	Passed	402	147 ms	$0.007
47 h ago	Passed	402	338 ms	$0.007
2 days ago	Passed	402	152 ms	$0.007
2 days ago	Passed	402	166 ms	$0.007
2 days ago	Passed	402	172 ms	$0.007
3 days ago	Passed	402	143 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 69/ 100

Availability (30-day uptime)		29 / 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: 4 days ago

Source: x402 Bazaar settlement data.

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Trust score

[![ToolVet trust score](https://toolvet.app/badge/calc-phq-9.svg)](https://toolvet.app/s/calc-phq-9)