Infection / VTE · LIVE

Phoenix Sepsis Score

Sum four caller-assigned Schlapbach 2024 Phoenix Sepsis Score organ integers and return sepsis (suspected infection and score ≥2) and septic shock (sepsis with cardiovascular ≥1).

LIVE $0.005 USDC GET /api/calc/phoenix_sepsis

Markdown: /docs/phoenix-sepsis.md · Canonical: https://magentlab.com/docs/phoenix-sepsis

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

What it computes

Sum four caller-assigned Schlapbach 2024 Phoenix Sepsis Score organ integers and return sepsis (suspected infection and score ≥2) and septic shock (sepsis with cardiovascular ≥1).

When to use

When an agent has already assigned Schlapbach 2024 Phoenix table organ integers (not raw labs, P/F, MAP-for-age, or GCS) and needs the published four-organ total with sepsis and septic-shock flags, not adult SOFA and not 2005 Goldstein SIRS sepsis.

When not to use

• Not a medical device. Not a diagnosis of sepsis or septic shock and not an antimicrobial or ICU-admission order.
• Schlapbach 2024 Phoenix Sepsis Score (four organs) only. Not Phoenix-8 (endocrine, immunologic, renal, hepatic). Not adult SOFA. Not 2005 Goldstein IPSCC SIRS sepsis. The former term severe sepsis is not used.
• Criteria apply to children <18 years with suspected infection. They do not apply to birth hospitalizations, children with post-conceptional age <37 weeks, or age ≥18 years. magent does not take age.
• magent does not interpret raw labs, P/F, S/F, MAP-for-age, vasoactive counts, or GCS; the caller assigns the four published organ integers. Unmeasured variables contribute 0 in the paper; this tool still requires all four integers.

Formula

Phoenix Sepsis Score = respiratory (0-3) + cardiovascular (0-6) + coagulation (0-2) + neurologic (0-2); caller-assigned Schlapbach 2024 table integers; max 13; sepsis iff suspected_infection and score >= 2; septic_shock iff sepsis and cardiovascular >= 1

Citation

Title

International Consensus Criteria for Pediatric Sepsis and Septic Shock

Authors

Schlapbach LJ, Watson RS, Sorce LR, et al.

Source

JAMA. 2024;331(8):665-674

DOI

10.1001/jama.2024.0179

Worked example

Also searched as

• Phoenix Sepsis Score
• pediatric sepsis criteria
• SCCM Phoenix sepsis
• Phoenix septic shock
• Schlapbach 2024 Phoenix
• Phoenix-4 organ score
• pediatric Sepsis-3 Phoenix

Try

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

/api/calc/phoenix_sepsis?respiratory=0&cardiovascular=0&coagulation=0&neurologic=0&suspected_infection=true

Full URL: https://api.magentlab.com/api/calc/phoenix_sepsis?respiratory=0&cardiovascular=0&coagulation=0&neurologic=0&suspected_infection=true

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/phoenix_sepsis?respiratory=0&cardiovascular=0&coagulation=0&neurologic=0&suspected_infection=true"

Parameters

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/phoenix_sepsis 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": [
    {
      "cardiovascular": "0",
      "coagulation": "0",
      "neurologic": "0",
      "respiratory": "0",
      "suspected_infection": "true"
    },
    {
      "cardiovascular": "0",
      "coagulation": "0",
      "neurologic": "0",
      "respiratory": "0",
      "suspected_infection": "true"
    }
  ]
}

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/phoenix_sepsis",
  "items": [
    {
      "components": [
        {
          "value": 0,
          "factor": "respiratory",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "cardiovascular",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "coagulation",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "neurologic",
          "points": 0,
          "present": false
        }
      ],
      "category": "not_sepsis",
      "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": "Schlapbach LJ, Watson RS, Sorce LR, et al.",
        "doi": "10.1001/jama.2024.0179",
        "id": "schlapbach-2024",
        "pmid": "38245889",
        "source": "JAMA. 2024;331(8):665-674",
        "title": "International Consensus Criteria for Pediatric Sepsis and Septic Shock"
      },
      "formula": "phoenix_sepsis",
      "formula_expression": "Phoenix Sepsis Score = respiratory (0-3) + cardiovascular (0-6) + coagulation (0-2) + neurologic (0-2); caller-assigned Schlapbach 2024 table integers; max 13; sepsis iff suspected_infection and score >= 2; septic_shock iff sepsis and cardiovascular >= 1",
      "max_score": 13,
      "score": 0,
      "respiratory": 0,
      "cardiovascular": 0,
      "coagulation": 0,
      "neurologic": 0,
      "phoenix_sepsis_score": 0,
      "sepsis": false,
      "septic_shock": false,
      "suspected_infection": true
    },
    {
      "components": [
        {
          "value": 0,
          "factor": "respiratory",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "cardiovascular",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "coagulation",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "neurologic",
          "points": 0,
          "present": false
        }
      ],
      "category": "not_sepsis",
      "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": "Schlapbach LJ, Watson RS, Sorce LR, et al.",
        "doi": "10.1001/jama.2024.0179",
        "id": "schlapbach-2024",
        "pmid": "38245889",
        "source": "JAMA. 2024;331(8):665-674",
        "title": "International Consensus Criteria for Pediatric Sepsis and Septic Shock"
      },
      "formula": "phoenix_sepsis",
      "formula_expression": "Phoenix Sepsis Score = respiratory (0-3) + cardiovascular (0-6) + coagulation (0-2) + neurologic (0-2); caller-assigned Schlapbach 2024 table integers; max 13; sepsis iff suspected_infection and score >= 2; septic_shock iff sepsis and cardiovascular >= 1",
      "max_score": 13,
      "score": 0,
      "respiratory": 0,
      "cardiovascular": 0,
      "coagulation": 0,
      "neurologic": 0,
      "phoenix_sepsis_score": 0,
      "sepsis": false,
      "septic_shock": false,
      "suspected_infection": true
    }
  ]
}

Response

Example JSON

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

{
  "components": [
    {
      "value": 0,
      "factor": "respiratory",
      "points": 0,
      "present": false
    },
    {
      "value": 0,
      "factor": "cardiovascular",
      "points": 0,
      "present": false
    },
    {
      "value": 0,
      "factor": "coagulation",
      "points": 0,
      "present": false
    },
    {
      "value": 0,
      "factor": "neurologic",
      "points": 0,
      "present": false
    }
  ],
  "category": "not_sepsis",
  "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": "Schlapbach LJ, Watson RS, Sorce LR, et al.",
    "doi": "10.1001/jama.2024.0179",
    "id": "schlapbach-2024",
    "pmid": "38245889",
    "source": "JAMA. 2024;331(8):665-674",
    "title": "International Consensus Criteria for Pediatric Sepsis and Septic Shock"
  },
  "formula": "phoenix_sepsis",
  "formula_expression": "Phoenix Sepsis Score = respiratory (0-3) + cardiovascular (0-6) + coagulation (0-2) + neurologic (0-2); caller-assigned Schlapbach 2024 table integers; max 13; sepsis iff suspected_infection and score >= 2; septic_shock iff sepsis and cardiovascular >= 1",
  "max_score": 13,
  "score": 0,
  "respiratory": 0,
  "cardiovascular": 0,
  "coagulation": 0,
  "neurologic": 0,
  "phoenix_sepsis_score": 0,
  "sepsis": false,
  "septic_shock": false,
  "suspected_infection": true
}

Client errors (HTTP 400)

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

Related tools

• SOFA — Compute the Vincent 1996 SOFA score from PaO2/FiO2, platelets, bilirubin, MAP and adrenergic agents, GCS, and creatinine or urine output.
• qSOFA — Compute the Sepsis-3 qSOFA score from respiratory rate, caller-assigned altered mentation, and systolic blood pressure.
• SIRS — Compute the Bone 1992 ACCP/SCCM SIRS criteria from temperature, heart rate, respiratory rate, and WBC, with optional PaCO2 and band percent.
• NEWS2 — Compute the RCP 2017 National Early Warning Score 2 from respiratory rate, SpO2 (Scale 1 or Scale 2), supplemental oxygen, temperature, systolic BP, heart rate, and caller-assigned ACVPU.

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.