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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

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

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

x402 V2 curl

Expect HTTP 402 and a PAYMENT-REQUIRED header until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge. HTTP 503 after a signature: retry the same PAYMENT-SIGNATURE — that is not a new 402. 

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"

Cursor mcp.json

Intended config for @magent/mcp. This is not npm @x402/fetch (a payment fetch wrapper). 

{
  "mcpServers": {
    "magent": {
      "args": [
        "-y",
        "@magent/mcp"
      ],
      "command": "npx",
      "env": {
        "X402_PRIVATE_KEY": "0xYOUR_SPENDING_KEY"
      }
    }
  }
}

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. Price is n times the GET unit. Invalid items return HTTP 400 before settlement.

POST /api/calc/timi_ua_nstemi Max 25 unit_amount * n PREVIEW

  • 1 to 25 items. Each item uses the same keys as the GET query parameters.
  • 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",
      "age_years": 50,
      "max_score": 7,
      "score": 0
    },
    {
      "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",
      "age_years": 50,
      "max_score": 7,
      "score": 0
    }
  ]
}

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",
  "age_years": 50,
  "max_score": 7,
  "score": 0
}

Errors

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.
402 payment_required Missing or invalid PAYMENT-SIGNATURE; decode the PAYMENT-REQUIRED header
409 payment_in_progress The same authorization nonce is already being settled; retry shortly
429 rate_limited Too many requests from this client
503 settlement_uncertain Settlement is unconfirmed; retry with the same PAYMENT-SIGNATURE
503 settle_failed Settlement failed; retry with the same PAYMENT-SIGNATURE shortly
503 facilitator_unavailable Payment facilitator unavailable
503 facilitator_misconfigured Payment facilitator is not configured
503 facilitator_unauthorized Payment facilitator rejected credentials
503 ledger_unavailable Payment ledger unavailable
503 payment_unavailable Payment processing unavailable

Related tools

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

Also searched as

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

Payment

Required query parameters must be present and valid. 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.

Guarantees

  • Invalid query parameters return HTTP 400 before settlement. You are not charged.
  • Settlement finishes before the tool executes (paymentFlow upfront). 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.