MAGENT

Infection / VTE · LIVE

FeverPAIN score

FeverPAIN

Sum the five Little 2013 FeverPAIN flags for sore throat and return the published 0-1 / 2-3 / 4-5 score group.

LIVE $0.005 USDC GET /api/calc/feverpain

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

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

What it computes

Sum the five Little 2013 FeverPAIN flags for sore throat and return the published 0-1 / 2-3 / 4-5 score group.

When to use

When an agent needs the published FeverPAIN point total and must not invent the five findings or a test-or-treat decision.

When not to use

  • Not a medical device.
  • Not a test-or-treat order and not a diagnosis of streptococcal pharyngitis.
  • The caller assigns the five clinical findings. magent does not examine the throat.
  • Bands are published Little 2013 score groups (0-1 / 2-3 / 4-5), not a protocol.

Formula

FeverPAIN = fever_in_past_24h + purulent_tonsils + attends_within_3_days + severely_inflamed_tonsils + no_cough_or_coryza; each 1 if true; max 5

Citation

Title
Clinical score and rapid antigen detection test to guide antibiotic use for sore throats: randomised controlled trial of PRISM (primary care streptococcal management)
Authors
Little P, Hobbs FDR, Moore M, et al.
Source
BMJ. 2013;347:f5806
DOI
10.1136/bmj.f5806

Worked example

All five flags false

Given: attends_within_3_days=falsefever_in_past_24h=falseno_cough_or_coryza=falsepurulent_tonsils=falseseverely_inflamed_tonsils=false

  1. Five findings absent → 0 each
  2. Score = 0 (max 5); band 0-1

All five flags true

Given: attends_within_3_days=truefever_in_past_24h=trueno_cough_or_coryza=truepurulent_tonsils=trueseverely_inflamed_tonsils=true

  1. Five findings present → 1 each
  2. Score = 5 (max 5); band 4-5

Also searched as

  • FeverPAIN score
  • Fever PAIN
  • PRISM sore throat score
  • Little FeverPAIN
  • streptococcal pharyngitis FeverPAIN
  • purulent tonsils fever score
  • sore throat clinical score

Try

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

/api/calc/feverpain?fever_in_past_24h=false&purulent_tonsils=false&attends_within_3_days=false&severely_inflamed_tonsils=false&no_cough_or_coryza=false

Full URL: https://api.magentlab.com/api/calc/feverpain?fever_in_past_24h=false&purulent_tonsils=false&attends_within_3_days=false&severely_inflamed_tonsils=false&no_cough_or_coryza=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/feverpain?fever_in_past_24h=false&purulent_tonsils=false&attends_within_3_days=false&severely_inflamed_tonsils=false&no_cough_or_coryza=false"

Parameters

Name Type Required Description
fever_in_past_24h boolean required Fever in the past 24 hours (Little 2013). true or false as assigned by the caller.
purulent_tonsils boolean required Purulent tonsils (Little 2013). true or false as assigned by the caller.
attends_within_3_days boolean required Attendance within 3 days of onset (Little 2013). true or false as assigned by the caller.
severely_inflamed_tonsils boolean required Severely inflamed tonsils (Little 2013). true or false as assigned by the caller.
no_cough_or_coryza boolean required Absence of cough or coryza (Little 2013). true when the published finding is present; false otherwise. Assigned by the caller.

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/feverpain 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": [
    {
      "attends_within_3_days": "false",
      "fever_in_past_24h": "false",
      "no_cough_or_coryza": "false",
      "purulent_tonsils": "false",
      "severely_inflamed_tonsils": "false"
    },
    {
      "attends_within_3_days": "false",
      "fever_in_past_24h": "false",
      "no_cough_or_coryza": "false",
      "purulent_tonsils": "false",
      "severely_inflamed_tonsils": "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/feverpain",
  "items": [
    {
      "band": "0-1",
      "components": [
        {
          "factor": "fever_in_past_24h",
          "points": 0,
          "present": false
        },
        {
          "factor": "purulent_tonsils",
          "points": 0,
          "present": false
        },
        {
          "factor": "attends_within_3_days",
          "points": 0,
          "present": false
        },
        {
          "factor": "severely_inflamed_tonsils",
          "points": 0,
          "present": false
        },
        {
          "factor": "no_cough_or_coryza",
          "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": "Little P, Hobbs FDR, Moore M, et al.",
        "doi": "10.1136/bmj.f5806",
        "id": "little-2013",
        "pmid": "24114306",
        "source": "BMJ. 2013;347:f5806",
        "title": "Clinical score and rapid antigen detection test to guide antibiotic use for sore throats: randomised controlled trial of PRISM (primary care streptococcal management)"
      },
      "formula": "feverpain",
      "formula_expression": "FeverPAIN = fever_in_past_24h + purulent_tonsils + attends_within_3_days + severely_inflamed_tonsils + no_cough_or_coryza; each 1 if true; max 5",
      "max_score": 5,
      "score": 0
    },
    {
      "band": "0-1",
      "components": [
        {
          "factor": "fever_in_past_24h",
          "points": 0,
          "present": false
        },
        {
          "factor": "purulent_tonsils",
          "points": 0,
          "present": false
        },
        {
          "factor": "attends_within_3_days",
          "points": 0,
          "present": false
        },
        {
          "factor": "severely_inflamed_tonsils",
          "points": 0,
          "present": false
        },
        {
          "factor": "no_cough_or_coryza",
          "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": "Little P, Hobbs FDR, Moore M, et al.",
        "doi": "10.1136/bmj.f5806",
        "id": "little-2013",
        "pmid": "24114306",
        "source": "BMJ. 2013;347:f5806",
        "title": "Clinical score and rapid antigen detection test to guide antibiotic use for sore throats: randomised controlled trial of PRISM (primary care streptococcal management)"
      },
      "formula": "feverpain",
      "formula_expression": "FeverPAIN = fever_in_past_24h + purulent_tonsils + attends_within_3_days + severely_inflamed_tonsils + no_cough_or_coryza; each 1 if true; max 5",
      "max_score": 5,
      "score": 0
    }
  ]
}

Response

Field Type Description
formula string feverpain
formula_expression string Exact expression used
score integer FeverPAIN points 0-5
max_score integer 5
band string Published Little 2013 score group: 0-1, 2-3, or 4-5. A band, not a test-or-treat order.
components array Per-finding points
citation object Little et al. BMJ 2013 citation
disclaimer string Not-a-device notice

Example JSON

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

{
  "band": "0-1",
  "components": [
    {
      "factor": "fever_in_past_24h",
      "points": 0,
      "present": false
    },
    {
      "factor": "purulent_tonsils",
      "points": 0,
      "present": false
    },
    {
      "factor": "attends_within_3_days",
      "points": 0,
      "present": false
    },
    {
      "factor": "severely_inflamed_tonsils",
      "points": 0,
      "present": false
    },
    {
      "factor": "no_cough_or_coryza",
      "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": "Little P, Hobbs FDR, Moore M, et al.",
    "doi": "10.1136/bmj.f5806",
    "id": "little-2013",
    "pmid": "24114306",
    "source": "BMJ. 2013;347:f5806",
    "title": "Clinical score and rapid antigen detection test to guide antibiotic use for sore throats: randomised controlled trial of PRISM (primary care streptococcal management)"
  },
  "formula": "feverpain",
  "formula_expression": "FeverPAIN = fever_in_past_24h + purulent_tonsils + attends_within_3_days + severely_inflamed_tonsils + no_cough_or_coryza; each 1 if true; max 5",
  "max_score": 5,
  "score": 0
}

Client errors (HTTP 400)

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

HTTP Code When
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

  • Centor and McIsaac scores — Compute the Centor score or the McIsaac age-modified score from four caller-assigned pharyngitis findings. The edition is required.

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.