ACS · LIVE

EDACS chest pain score

EDACS

Compute the Than 2014 Emergency Department Assessment of Chest pain Score from age, sex, and caller-assigned flags.

LIVE $0.005 USDC GET /api/calc/edacs

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

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

What it computes

Compute the Than 2014 Emergency Department Assessment of Chest pain Score from age, sex, and caller-assigned flags.

When to use

When an agent needs the published EDACS total and must not invent HEART, TIMI, or a discharge decision from ECG or troponin.

When not to use

Not a diagnosis or discharge order. score_lt_16 is the published EDACS < 16 threshold only; the Than 2014 2-hour ADP also requires a non-ischemic ECG and negative 0 h and 2 h troponin, which magent does not take.
known_cad_or_three_risk_factors is caller-assigned (known CAD or ≥3 risk factors). magent does not count risk factors. That term scores +4 only when age is 18-50; above 50 it is 0 even if the flag is true.
This is EDACS (Than 2014), not HEART and not TIMI. Pain flags are caller-assigned; magent does not interpret a history or ECG. The score may be negative.

Formula

EDACS = age (18-45:2, 46-50:4, 51-55:6, 56-60:8, 61-65:10, 66-70:12, 71-75:14, 76-80:16, 81-85:18, >=86:20) + male 6 + known_cad_or_three_risk_factors 4 if age 18-50 else 0 + diaphoresis 3 + pain_radiates_arm_shoulder_neck_jaw 5 + pain_with_inspiration -4 + pain_reproduced_by_palpation -6; score may be negative; paper ADP uses EDACS < 16 plus ECG and 0/2h troponin

Citation

Title: Development and validation of the Emergency Department Assessment of Chest pain Score and 2 h accelerated diagnostic protocol
Authors: Than M, Flaws D, Sanders S, et al.
Source: Emerg Med Australas. 2014;26(1):34-44
DOI: 10.1111/1742-6723.12164

Worked example

Age 40 female, all flags false

Given: age=40diaphoresis=falseknown_cad_or_three_risk_factors=falsepain_radiates_arm_shoulder_neck_jaw=falsepain_reproduced_by_palpation=falsepain_with_inspiration=falsesex=female

Age 40 (18-45) → 2; female → 0; all flags false → 0
Score = 2; score_lt_16 true

Also searched as

EDACS
Emergency Department Assessment of Chest pain Score
Than EDACS
EDACS ADP
chest pain EDACS
EDACS score Than 2014
2 hour accelerated diagnostic protocol

Try

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

/api/calc/edacs?age=40&sex=female&known_cad_or_three_risk_factors=false&diaphoresis=false&pain_radiates_arm_shoulder_neck_jaw=false&pain_with_inspiration=false&pain_reproduced_by_palpation=false

Full URL: https://api.magentlab.com/api/calc/edacs?age=40&sex=female&known_cad_or_three_risk_factors=false&diaphoresis=false&pain_radiates_arm_shoulder_neck_jaw=false&pain_with_inspiration=false&pain_reproduced_by_palpation=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/edacs?age=40&sex=female&known_cad_or_three_risk_factors=false&diaphoresis=false&pain_radiates_arm_shoulder_neck_jaw=false&pain_with_inspiration=false&pain_reproduced_by_palpation=false"

Parameters

Name	Type	Required	Description
`age`	integer	required	Age in years (18-120). 18-45 scores 2; then +2 per 5-year band through 81-85 (18); ≥86 scores 20.
`sex`	string	required · female, male	male scores 6; female scores 0.
`known_cad_or_three_risk_factors`	boolean	required	Caller-assigned known CAD or ≥3 risk factors (Than 2014). Scores +4 only when age is 18-50; required even when age >50 (then 0). magent does not count risk factors. true or false.
`diaphoresis`	boolean	required	Diaphoresis with the pain. true scores +3.
`pain_radiates_arm_shoulder_neck_jaw`	boolean	required	Pain radiates to arm, shoulder, neck, or jaw. true scores +5. magent does not interpret the history.
`pain_with_inspiration`	boolean	required	Pain occurred or worsened with inspiration. true scores −4.
`pain_reproduced_by_palpation`	boolean	required	Pain reproduced by palpation. true scores −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/edacs 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": "40",
      "diaphoresis": "false",
      "known_cad_or_three_risk_factors": "false",
      "pain_radiates_arm_shoulder_neck_jaw": "false",
      "pain_reproduced_by_palpation": "false",
      "pain_with_inspiration": "false",
      "sex": "female"
    },
    {
      "age": "40",
      "diaphoresis": "false",
      "known_cad_or_three_risk_factors": "false",
      "pain_radiates_arm_shoulder_neck_jaw": "false",
      "pain_reproduced_by_palpation": "false",
      "pain_with_inspiration": "false",
      "sex": "female"
    }
  ]
}

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/edacs",
  "items": [
    {
      "components": [
        {
          "value": 40,
          "factor": "age",
          "points": 2,
          "present": true
        },
        {
          "value": "female",
          "factor": "sex_male",
          "points": 0,
          "present": false
        },
        {
          "factor": "known_cad_or_three_risk_factors",
          "points": 0,
          "present": false
        },
        {
          "factor": "diaphoresis",
          "points": 0,
          "present": false
        },
        {
          "factor": "pain_radiates_arm_shoulder_neck_jaw",
          "points": 0,
          "present": false
        },
        {
          "factor": "pain_with_inspiration",
          "points": 0,
          "present": false
        },
        {
          "factor": "pain_reproduced_by_palpation",
          "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": "Than M, Flaws D, Sanders S, et al.",
        "doi": "10.1111/1742-6723.12164",
        "id": "than-2014",
        "pmid": "24428678",
        "source": "Emerg Med Australas. 2014;26(1):34-44",
        "title": "Development and validation of the Emergency Department Assessment of Chest pain Score and 2 h accelerated diagnostic protocol"
      },
      "formula": "edacs",
      "formula_expression": "EDACS = age (18-45:2, 46-50:4, 51-55:6, 56-60:8, 61-65:10, 66-70:12, 71-75:14, 76-80:16, 81-85:18, >=86:20) + male 6 + known_cad_or_three_risk_factors 4 if age 18-50 else 0 + diaphoresis 3 + pain_radiates_arm_shoulder_neck_jaw 5 + pain_with_inspiration -4 + pain_reproduced_by_palpation -6; score may be negative; paper ADP uses EDACS < 16 plus ECG and 0/2h troponin",
      "age_years": 40,
      "score": 2,
      "sex": "female",
      "score_lt_16": true
    },
    {
      "components": [
        {
          "value": 40,
          "factor": "age",
          "points": 2,
          "present": true
        },
        {
          "value": "female",
          "factor": "sex_male",
          "points": 0,
          "present": false
        },
        {
          "factor": "known_cad_or_three_risk_factors",
          "points": 0,
          "present": false
        },
        {
          "factor": "diaphoresis",
          "points": 0,
          "present": false
        },
        {
          "factor": "pain_radiates_arm_shoulder_neck_jaw",
          "points": 0,
          "present": false
        },
        {
          "factor": "pain_with_inspiration",
          "points": 0,
          "present": false
        },
        {
          "factor": "pain_reproduced_by_palpation",
          "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": "Than M, Flaws D, Sanders S, et al.",
        "doi": "10.1111/1742-6723.12164",
        "id": "than-2014",
        "pmid": "24428678",
        "source": "Emerg Med Australas. 2014;26(1):34-44",
        "title": "Development and validation of the Emergency Department Assessment of Chest pain Score and 2 h accelerated diagnostic protocol"
      },
      "formula": "edacs",
      "formula_expression": "EDACS = age (18-45:2, 46-50:4, 51-55:6, 56-60:8, 61-65:10, 66-70:12, 71-75:14, 76-80:16, 81-85:18, >=86:20) + male 6 + known_cad_or_three_risk_factors 4 if age 18-50 else 0 + diaphoresis 3 + pain_radiates_arm_shoulder_neck_jaw 5 + pain_with_inspiration -4 + pain_reproduced_by_palpation -6; score may be negative; paper ADP uses EDACS < 16 plus ECG and 0/2h troponin",
      "age_years": 40,
      "score": 2,
      "sex": "female",
      "score_lt_16": true
    }
  ]
}

Response

Field	Type	Description
`formula`	string	edacs
`formula_expression`	string	Exact expression used
`score`	integer	Total EDACS points; may be negative
`score_lt_16`	boolean	true when score < 16 (Than 2014 ADP threshold). Not a discharge flag; ADP also needs ECG and 0/2h troponin.
`sex`	string	female or male
`age_years`	integer	Age used for the 5-year bands and the CAD term gate
`components`	array	Per-factor points
`citation`	object	Than et al. EMA 2014 citation
`disclaimer`	string	Not-a-device notice

Example JSON

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

{
  "components": [
    {
      "value": 40,
      "factor": "age",
      "points": 2,
      "present": true
    },
    {
      "value": "female",
      "factor": "sex_male",
      "points": 0,
      "present": false
    },
    {
      "factor": "known_cad_or_three_risk_factors",
      "points": 0,
      "present": false
    },
    {
      "factor": "diaphoresis",
      "points": 0,
      "present": false
    },
    {
      "factor": "pain_radiates_arm_shoulder_neck_jaw",
      "points": 0,
      "present": false
    },
    {
      "factor": "pain_with_inspiration",
      "points": 0,
      "present": false
    },
    {
      "factor": "pain_reproduced_by_palpation",
      "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": "Than M, Flaws D, Sanders S, et al.",
    "doi": "10.1111/1742-6723.12164",
    "id": "than-2014",
    "pmid": "24428678",
    "source": "Emerg Med Australas. 2014;26(1):34-44",
    "title": "Development and validation of the Emergency Department Assessment of Chest pain Score and 2 h accelerated diagnostic protocol"
  },
  "formula": "edacs",
  "formula_expression": "EDACS = age (18-45:2, 46-50:4, 51-55:6, 56-60:8, 61-65:10, 66-70:12, 71-75:14, 76-80:16, 81-85:18, >=86:20) + male 6 + known_cad_or_three_risk_factors 4 if age 18-50 else 0 + diaphoresis 3 + pain_radiates_arm_shoulder_neck_jaw 5 + pain_with_inspiration -4 + pain_reproduced_by_palpation -6; score may be negative; paper ADP uses EDACS < 16 plus ECG and 0/2h troponin",
  "age_years": 40,
  "score": 2,
  "sex": "female",
  "score_lt_16": true
}

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_sex`	sex must be female or male 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

HEART score — Compute the HEART score as age points plus caller-assigned history, ECG, risk factors, and troponin (each 0-2).
TIMI UA/NSTEMI — Compute the TIMI risk score for unstable angina / NSTEMI from age and six caller-assigned flags.

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.
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.