ToolAssay

Kroenke 2001 PHQ-9 from nine caller-assigned DSM-IV depression items as integers

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.

Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
278 msmedian answer time
$0.005listed price per call
$0.007price it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

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

CategoryEverything else
Provider hostapi.magentlab.com
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days0 from 0 payers (the provider's figure, not ours)

Our checks, last 30 days

DayResultHTTPAskedTime
2026-09-28 valid payment request 402$0.007 278 ms

Example input (from the provider)

{
  "body": {
    "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
      }
    ]
  },
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "items": {
              "items": {
                "properties": {
                  "anhedonia": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 1 (integer 0-3): little interest or pleasure in doing things (0 not at all, 1 several days, 2 more than half the days, 3 nearly every day). magent does not interpret the item.",
                    "type": "integer"
                  },
                  "appetite": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 5 (integer 0-3): poor appetite or overeating. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "concentration": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 7 (integer 0-3): trouble concentrating on things such as reading or watching television. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "depressed": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 2 (integer 0-3): feeling down, depressed, or hopeless. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "energy": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 4 (integer 0-3): feeling tired or having little energy. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "failure": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 6 (integer 0-3): feeling bad about yourself \u2014 a failure, or having let yourself or your family down. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "psychomotor": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 8 (integer 0-3): moving or speaking so slowly that other people could have noticed, or being so fidgety or restless that you have been moving around a lot more than usual. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "self_harm": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 9 (integer 0-3): thoughts that you would be better off dead, or of hurting yourself in some way. magent does not interpret the item.",
                    "type": "integer"
                  },
                  "sleep": {
                    "description": "Caller-assigned Kroenke 2001 PHQ-9 item 3 (integer 0-3): trouble falling or staying asleep, or sleeping too much. magent does not interpret the item.",
                    "type": "integer"
                  }
                },
                "required": [
                  "anhedonia",
                  "depressed",
                  "sleep",
                  "energy",
                  "appetite",
                  "failure",
                  "concentration",
                  "psychomotor",
                  "self_harm"
                ],
                "type": "object"
              },
              "maxItems": 25,
              "minItems": 1,
              "type": "array"
            }
          },
          "required": [
            "items"
          ],
          "type": "object"
        },
        "headers": {
          "additionalProperties": {
            "type": "string"
          },
          "type": "object"
        },
        "method": {
          "const": "POST",
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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