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TIMI UA/NSTEMI risk score

TIMI UA/NSTEMI

Compute the TIMI risk score for unstable angina / NSTEMI from age and six caller-assigned flags.

LIVE $0.005 USDC GET /api/calc/timi_ua_nstemi

Markdown: /docs/timi-ua-nstemi.md · Canonical: https://magentlab.com/docs/timi-ua-nstemi

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

What it computes

Compute the TIMI risk score for unstable angina / NSTEMI from age and six caller-assigned flags.

When to use

When an agent needs the published TIMI UA/NSTEMI total and must not invent points from a chart narrative.

When not to use

Not an invasive-strategy protocol and not a diagnosis.
cad_risk_factors_ge_3 is a caller-assigned flag. magent does not expand smoking, hypertension, family history, diabetes, or cholesterol.
st_deviation is a caller-assigned flag. magent does not read ECGs.

Formula

TIMI UA/NSTEMI = age_ge_65 + cad_risk_factors_ge_3 + known_cad + aspirin_last_7d + severe_angina + st_deviation + elevated_markers; each 1 if present; max 7

Citation

Title: The TIMI risk score for unstable angina/non–ST elevation MI: A method for prognostication and therapeutic decision making
Authors: Antman EM, Cohen M, Bernink PJLM, et al.
Source: JAMA. 2000;284(7):835-842
DOI: 10.1001/jama.284.7.835

Worked example

Age 50, all flags false

Given: age=50aspirin_last_7d=falsecad_risk_factors_ge_3=falseelevated_markers=falseknown_cad=falsesevere_angina=falsest_deviation=false

Age 50 < 65 → 0; six flags absent → 0 each
Score = 0 (max 7)

Also searched as

TIMI UA/NSTEMI
TIMI risk score unstable angina
Antman TIMI score
NSTEMI TIMI
TIMI risk score for UA

Try

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

/api/calc/timi_ua_nstemi?age=50&cad_risk_factors_ge_3=false&known_cad=false&aspirin_last_7d=false&severe_angina=false&st_deviation=false&elevated_markers=false

Full URL: https://api.magentlab.com/api/calc/timi_ua_nstemi?age=50&cad_risk_factors_ge_3=false&known_cad=false&aspirin_last_7d=false&severe_angina=false&st_deviation=false&elevated_markers=false

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/timi_ua_nstemi?age=50&cad_risk_factors_ge_3=false&known_cad=false&aspirin_last_7d=false&severe_angina=false&st_deviation=false&elevated_markers=false"

Parameters

Name	Type	Required	Description
`age`	integer	required	Age in years (18-120). Age ≥65 scores 1.
`cad_risk_factors_ge_3`	boolean	required	≥3 CAD risk factors as assigned by the caller. true or false. magent does not expand smoking, hypertension, family history, diabetes, or cholesterol.
`known_cad`	boolean	required	Known CAD (stenosis ≥50%). true or false.
`aspirin_last_7d`	boolean	required	Aspirin use in the last 7 days. true or false.
`severe_angina`	boolean	required	Severe angina (≥2 episodes in 24 hours). true or false.
`st_deviation`	boolean	required	ST deviation ≥0.5 mm as assigned by the caller. true or false. magent does not read ECGs.
`elevated_markers`	boolean	required	Elevated cardiac markers as assigned by the caller. true or false.

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/timi_ua_nstemi 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": [
    {
      "age": "50",
      "aspirin_last_7d": "false",
      "cad_risk_factors_ge_3": "false",
      "elevated_markers": "false",
      "known_cad": "false",
      "severe_angina": "false",
      "st_deviation": "false"
    },
    {
      "age": "50",
      "aspirin_last_7d": "false",
      "cad_risk_factors_ge_3": "false",
      "elevated_markers": "false",
      "known_cad": "false",
      "severe_angina": "false",
      "st_deviation": "false"
    }
  ]
}

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/timi_ua_nstemi",
  "items": [
    {
      "components": [
        {
          "value": 50,
          "factor": "age_ge_65",
          "points": 0,
          "present": false
        },
        {
          "factor": "cad_risk_factors_ge_3",
          "points": 0,
          "present": false
        },
        {
          "factor": "known_cad",
          "points": 0,
          "present": false
        },
        {
          "factor": "aspirin_last_7d",
          "points": 0,
          "present": false
        },
        {
          "factor": "severe_angina",
          "points": 0,
          "present": false
        },
        {
          "factor": "st_deviation",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_markers",
          "points": 0,
          "present": false
        }
      ],
      "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": "Antman EM, Cohen M, Bernink PJLM, et al.",
        "doi": "10.1001/jama.284.7.835",
        "id": "antman-2000",
        "source": "JAMA. 2000;284(7):835-842",
        "title": "The TIMI risk score for unstable angina/non–ST elevation MI: A method for prognostication and therapeutic decision making"
      },
      "formula": "timi_ua_nstemi",
      "formula_expression": "TIMI UA/NSTEMI = age_ge_65 + cad_risk_factors_ge_3 + known_cad + aspirin_last_7d + severe_angina + st_deviation + elevated_markers; each 1 if present; max 7",
      "max_score": 7,
      "score": 0,
      "age_years": 50
    },
    {
      "components": [
        {
          "value": 50,
          "factor": "age_ge_65",
          "points": 0,
          "present": false
        },
        {
          "factor": "cad_risk_factors_ge_3",
          "points": 0,
          "present": false
        },
        {
          "factor": "known_cad",
          "points": 0,
          "present": false
        },
        {
          "factor": "aspirin_last_7d",
          "points": 0,
          "present": false
        },
        {
          "factor": "severe_angina",
          "points": 0,
          "present": false
        },
        {
          "factor": "st_deviation",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_markers",
          "points": 0,
          "present": false
        }
      ],
      "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": "Antman EM, Cohen M, Bernink PJLM, et al.",
        "doi": "10.1001/jama.284.7.835",
        "id": "antman-2000",
        "source": "JAMA. 2000;284(7):835-842",
        "title": "The TIMI risk score for unstable angina/non–ST elevation MI: A method for prognostication and therapeutic decision making"
      },
      "formula": "timi_ua_nstemi",
      "formula_expression": "TIMI UA/NSTEMI = age_ge_65 + cad_risk_factors_ge_3 + known_cad + aspirin_last_7d + severe_angina + st_deviation + elevated_markers; each 1 if present; max 7",
      "max_score": 7,
      "score": 0,
      "age_years": 50
    }
  ]
}

Response

Field	Type	Description
`formula`	string	timi_ua_nstemi
`formula_expression`	string	Exact expression used
`score`	integer	Total points 0-7
`max_score`	integer	Always 7
`age_years`	integer	Age used for the ≥65 criterion
`components`	array	Per-factor points
`citation`	object	JAMA 2000 citation
`disclaimer`	string	Not-a-device notice

Example JSON

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

{
  "components": [
    {
      "value": 50,
      "factor": "age_ge_65",
      "points": 0,
      "present": false
    },
    {
      "factor": "cad_risk_factors_ge_3",
      "points": 0,
      "present": false
    },
    {
      "factor": "known_cad",
      "points": 0,
      "present": false
    },
    {
      "factor": "aspirin_last_7d",
      "points": 0,
      "present": false
    },
    {
      "factor": "severe_angina",
      "points": 0,
      "present": false
    },
    {
      "factor": "st_deviation",
      "points": 0,
      "present": false
    },
    {
      "factor": "elevated_markers",
      "points": 0,
      "present": false
    }
  ],
  "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": "Antman EM, Cohen M, Bernink PJLM, et al.",
    "doi": "10.1001/jama.284.7.835",
    "id": "antman-2000",
    "source": "JAMA. 2000;284(7):835-842",
    "title": "The TIMI risk score for unstable angina/non–ST elevation MI: A method for prognostication and therapeutic decision making"
  },
  "formula": "timi_ua_nstemi",
  "formula_expression": "TIMI UA/NSTEMI = age_ge_65 + cad_risk_factors_ge_3 + known_cad + aspirin_last_7d + severe_angina + st_deviation + elevated_markers; each 1 if present; max 7",
  "max_score": 7,
  "score": 0,
  "age_years": 50
}

Client errors (HTTP 400)

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

HTTP	Code	When
400	`invalid_age`	age must be an integer from 18 to 120 Returned before settlement; you are not charged.
400	`invalid_flag`	boolean clinical flags must be true or false 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

TIMI risk score for STEMI — Compute the TIMI risk score for ST-elevation myocardial infarction from published bedside factors at presentation.

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.