MAGENT

Neurology · LIVE

Glasgow Coma Scale

Compute the Glasgow Coma Scale as the sum of caller-assigned eye, verbal, and motor integers. The 1974 or 1976 edition is required.

LIVE $0.005 USDC GET /api/calc/gcs

Markdown: /docs/gcs.md · Canonical: https://magentlab.com/docs/gcs

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Compute the Glasgow Coma Scale as the sum of caller-assigned eye, verbal, and motor integers. The 1974 or 1976 edition is required.

When to use

When an agent needs a published Teasdale-Jennett GCS total and must not silently pick the 1974 five-point motor scale or the 1976 six-point motor scale.

When not to use

  • Not a diagnosis and not a trauma triage, intubation, or disposition order.
  • Eye, verbal, and motor are caller-supplied integers. magent does not observe the three signs.
  • edition is required. magent does not pick 1974 (motor 1-5, max 14) or 1976 (motor 1-6, max 15).

Formula

GCS = eye + verbal + motor; eye 1-4, verbal 1-5, motor 1-6; max 15

Citation

Title
Assessment of coma and impaired consciousness. A practical scale
Authors
Teasdale G, Jennett B
Source
Lancet. 1974;2(7872):81-84
DOI
10.1016/S0140-6736(74)91639-0

Worked example

1976 E4 V5 M6

Given: edition=1976eye=4motor=6verbal=5

  1. eye 4 + verbal 5 + motor 6
  2. Score = 15 (max 15)

1974 E4 V5 M5

Given: edition=1974eye=4motor=5verbal=5

  1. eye 4 + verbal 5 + motor 5
  2. Score = 14 (max 14)

1976 E1 V1 M1

Given: edition=1976eye=1motor=1verbal=1

  1. eye 1 + verbal 1 + motor 1
  2. Score = 3

Also searched as

  • Glasgow Coma Scale
  • GCS score
  • Teasdale Jennett scale
  • Glasgow coma score
  • eye verbal motor
  • GCS 1974
  • GCS 1976

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/gcs?eye=4&verbal=5&motor=6&edition=1976

Full URL: https://api.magentlab.com/api/calc/gcs?eye=4&verbal=5&motor=6&edition=1976

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge. 

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/gcs?eye=4&verbal=5&motor=6&edition=1976"

Parameters

Name Type Required Description
eye integer required Eye opening (E). Integer 1-4 as assigned by the caller.
verbal integer required Verbal response (V). Integer 1-5 as assigned by the caller.
motor integer required Motor response (M). Integer 1-5 when edition=1974, or 1-6 when edition=1976, as assigned by the caller.
edition string required · 1974, 1976 Published motor scale. Required; magent does not pick 1974 (motor 1-5) or 1976 (motor 1-6).

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/gcs Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

  • 1 to 25 items. Each item uses the same keys as the GET query parameters.
  • POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
  • The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
  • HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
  • Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
  • x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "edition": "1976",
      "eye": "4",
      "motor": "6",
      "verbal": "5"
    },
    {
      "edition": "1976",
      "eye": "4",
      "motor": "6",
      "verbal": "5"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/gcs",
  "items": [
    {
      "components": [
        {
          "value": 4,
          "factor": "eye",
          "points": 4,
          "present": true
        },
        {
          "value": 5,
          "factor": "verbal",
          "points": 5,
          "present": true
        },
        {
          "value": 6,
          "factor": "motor",
          "points": 6,
          "present": true
        }
      ],
      "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.",
      "citation": {
        "authors": "Teasdale G, Jennett B",
        "doi": "10.1007/BF01405862",
        "id": "teasdale-jennett-1976",
        "source": "Acta Neurochir (Wien). 1976;34:45-55",
        "title": "Assessment and prognosis of coma after head injury"
      },
      "formula": "gcs",
      "formula_expression": "GCS = eye + verbal + motor; eye 1-4, verbal 1-5, motor 1-6; max 15",
      "max_score": 15,
      "score": 15,
      "edition": "1976"
    },
    {
      "components": [
        {
          "value": 4,
          "factor": "eye",
          "points": 4,
          "present": true
        },
        {
          "value": 5,
          "factor": "verbal",
          "points": 5,
          "present": true
        },
        {
          "value": 6,
          "factor": "motor",
          "points": 6,
          "present": true
        }
      ],
      "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.",
      "citation": {
        "authors": "Teasdale G, Jennett B",
        "doi": "10.1007/BF01405862",
        "id": "teasdale-jennett-1976",
        "source": "Acta Neurochir (Wien). 1976;34:45-55",
        "title": "Assessment and prognosis of coma after head injury"
      },
      "formula": "gcs",
      "formula_expression": "GCS = eye + verbal + motor; eye 1-4, verbal 1-5, motor 1-6; max 15",
      "max_score": 15,
      "score": 15,
      "edition": "1976"
    }
  ]
}

Response

Field Type Description
formula string gcs
formula_expression string Exact expression used
edition string 1974 or 1976
score integer Total points (3-14 or 3-15)
max_score integer 14 (1974) or 15 (1976)
components array Per-sign points
citation object Teasdale and Jennett 1974 or 1976
disclaimer string Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup. 

{
  "components": [
    {
      "value": 4,
      "factor": "eye",
      "points": 4,
      "present": true
    },
    {
      "value": 5,
      "factor": "verbal",
      "points": 5,
      "present": true
    },
    {
      "value": 6,
      "factor": "motor",
      "points": 6,
      "present": true
    }
  ],
  "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.",
  "citation": {
    "authors": "Teasdale G, Jennett B",
    "doi": "10.1007/BF01405862",
    "id": "teasdale-jennett-1976",
    "source": "Acta Neurochir (Wien). 1976;34:45-55",
    "title": "Assessment and prognosis of coma after head injury"
  },
  "formula": "gcs",
  "formula_expression": "GCS = eye + verbal + motor; eye 1-4, verbal 1-5, motor 1-6; max 15",
  "max_score": 15,
  "score": 15,
  "edition": "1976"
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP Code When
400 invalid_gcs_component eye (1-4), verbal (1-5), and motor (1-5 for edition=1974, 1-6 for edition=1976) must each be integers in range. Returned before settlement; you are not charged.
400 invalid_gcs_edition edition must be 1974 or 1976. Returned before settlement; you are not charged.
400 invalid_items POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400 invalid_item_count items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400 invalid_item each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

  • ICH Score — Compute the Hemphill 2001 ICH Score from caller-assigned GCS, age, infratentorial origin, ICH volume, and IVH.
  • ABCD2 score — Compute the ABCD2 score as age, blood pressure, caller-assigned clinical features, symptom duration, and diabetes.
  • San Francisco Syncope Rule — Compute the San Francisco Syncope Rule (CHESS) criterion count and rule-positive flag from published cutoffs.
  • RTS — Compute Champion 1989 coded GCS, SBP, and respiratory-rate values, the triage T-RTS sum, and the weighted RTS used for outcome evaluation.
  • Hunt-Hess — Return the Hunt and Hess 1968 subarachnoid-hemorrhage surgical-risk grade from a caller-assigned grade 1-5, applying the paper's next-less-favorable bump when serious systemic disease is present.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

  • HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
  • exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
  • HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
  • Execution is timeout-bounded and concurrency-capped.
  • Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.