# SCAP (España 2006) SCAP Status: LIVE Price: $0.005 USDC `GET /api/calc/scap` HTML: https://magentlab.com/docs/scap Markdown: https://magentlab.com/docs/scap.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Apply the España 2006 SCAP major/minor rule from eight caller-assigned flags and return major_count, minor_count, score, and whether the published severe threshold is met. ## When to use When an agent already has the published España 2006 predictors assigned as flags and needs the 1-major or ≥2-minor severe rule. magent does not measure pH, blood pressure, respiratory rate, BUN, or PaO2, and does not read radiographs. ## When not to use - Not a medical device and not a diagnosis of pneumonia. - Not an ICU-admission, site-of-care, or treatment order. - España 2006 major/minor rule only. Not CURB-65, not PSI/PORT, and not SMART-COP. - The caller assigns every flag. magent does not measure pH, blood pressure, respiratory rate, BUN, or PaO2, and does not interpret radiographs. - hypoxemia is caller-assigned as PaO2 <54 mm Hg or PaO2/FiO2 <250. magent does not combine those measurements. - Each true predictor scores 1 (max 8). This is the published 1-major or ≥2-minor rule, not secondary 13/11/9/6/5 integer cards or 0–9 / 10–19 / ≥20 classes. ## Formula ``` SCAP severe iff 1 major (ph_lt_7_30 or sbp_lt_90) OR >=2 minor (respiratory_rate_gt_30, altered_mental_status, bun_gt_30_mg_dl, hypoxemia, age_ge_80, multilobar_or_bilateral); 1 point per true predictor (España 2006 major/minor rule; not beta-derived integer cards); max 8 ``` ## Citation [Development and validation of a clinical prediction rule for severe community-acquired pneumonia](https://doi.org/10.1164/rccm.200602-177OC) España PP, Capelastegui A, Gorordo I, Esteban C, Oribe M, Ortega M, Bilbao A, Quintana JM Am J Respir Crit Care Med. 2006;174(11):1249-1256 DOI: [10.1164/rccm.200602-177OC](https://doi.org/10.1164/rccm.200602-177OC) ## Worked example ### All eight flags absent Given: `age_ge_80=false, altered_mental_status=false, bun_gt_30_mg_dl=false, hypoxemia=false, multilobar_or_bilateral=false, ph_lt_7_30=false, respiratory_rate_gt_30=false, sbp_lt_90=false` 1. Both major flags are false → major_count = 0 2. All six minor flags are false → minor_count = 0 3. score = 0; scap_severe is false (needs 1 major or ≥2 minor) ## Also searched as - SCAP - España 2006 SCAP - severe community-acquired pneumonia - SCAP rule - CURXO80 - España severe CAP - SCAP major minor criteria ## Parameters - `ph_lt_7_30` (boolean, required): Arterial pH <7.30 (España 2006 major). true or false as assigned by the caller. magent does not measure pH. - `sbp_lt_90` (boolean, required): Systolic blood pressure <90 mm Hg (España 2006 major). true or false as assigned by the caller. magent does not measure blood pressure. - `respiratory_rate_gt_30` (boolean, required): Respiratory rate >30 breaths/min (España 2006 minor; strict greater-than, not ≥30). true or false as assigned by the caller. magent does not measure respiratory rate. - `altered_mental_status` (boolean, required): Altered mental status (España 2006 minor). true or false as assigned by the caller. magent does not assess mental status. - `bun_gt_30_mg_dl` (boolean, required): Blood urea nitrogen >30 mg/dL (España 2006 minor). true or false as assigned by the caller. magent does not convert urea or measure BUN. - `hypoxemia` (boolean, required): Hypoxemia as PaO2 <54 mm Hg or PaO2/FiO2 <250 (España 2006 minor), as assigned by the caller. true or false. magent does not measure PaO2 or FiO2. - `age_ge_80` (boolean, required): Age ≥80 years (España 2006 minor). true or false as assigned by the caller. magent does not compute age. - `multilobar_or_bilateral` (boolean, required): Multilobar or bilateral lung involvement (España 2006 minor). true or false as assigned by the caller. magent does not interpret radiographs. ## 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. Method: `POST /api/calc/scap` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: 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: ```json { "items": [ { "age_ge_80": "false", "altered_mental_status": "false", "bun_gt_30_mg_dl": "false", "hypoxemia": "false", "multilobar_or_bilateral": "false", "ph_lt_7_30": "false", "respiratory_rate_gt_30": "false", "sbp_lt_90": "false" }, { "age_ge_80": "false", "altered_mental_status": "false", "bun_gt_30_mg_dl": "false", "hypoxemia": "false", "multilobar_or_bilateral": "false", "ph_lt_7_30": "false", "respiratory_rate_gt_30": "false", "sbp_lt_90": "false" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/scap Example 200: ```json { "count": 2, "path": "/api/calc/scap", "items": [ { "components": [ { "factor": "ph_lt_7_30", "points": 0, "present": false }, { "factor": "sbp_lt_90", "points": 0, "present": false }, { "factor": "respiratory_rate_gt_30", "points": 0, "present": false }, { "factor": "altered_mental_status", "points": 0, "present": false }, { "factor": "bun_gt_30_mg_dl", "points": 0, "present": false }, { "factor": "hypoxemia", "points": 0, "present": false }, { "factor": "age_ge_80", "points": 0, "present": false }, { "factor": "multilobar_or_bilateral", "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": "España PP, Capelastegui A, Gorordo I, Esteban C, Oribe M, Ortega M, Bilbao A, Quintana JM", "doi": "10.1164/rccm.200602-177OC", "id": "espana-2006", "pmid": "16973986", "source": "Am J Respir Crit Care Med. 2006;174(11):1249-1256", "title": "Development and validation of a clinical prediction rule for severe community-acquired pneumonia" }, "formula": "scap", "formula_expression": "SCAP severe iff 1 major (ph_lt_7_30 or sbp_lt_90) OR >=2 minor (respiratory_rate_gt_30, altered_mental_status, bun_gt_30_mg_dl, hypoxemia, age_ge_80, multilobar_or_bilateral); 1 point per true predictor (España 2006 major/minor rule; not beta-derived integer cards); max 8", "max_score": 8, "score": 0, "major_count": 0, "minor_count": 0, "scap_severe": false }, { "components": [ { "factor": "ph_lt_7_30", "points": 0, "present": false }, { "factor": "sbp_lt_90", "points": 0, "present": false }, { "factor": "respiratory_rate_gt_30", "points": 0, "present": false }, { "factor": "altered_mental_status", "points": 0, "present": false }, { "factor": "bun_gt_30_mg_dl", "points": 0, "present": false }, { "factor": "hypoxemia", "points": 0, "present": false }, { "factor": "age_ge_80", "points": 0, "present": false }, { "factor": "multilobar_or_bilateral", "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": "España PP, Capelastegui A, Gorordo I, Esteban C, Oribe M, Ortega M, Bilbao A, Quintana JM", "doi": "10.1164/rccm.200602-177OC", "id": "espana-2006", "pmid": "16973986", "source": "Am J Respir Crit Care Med. 2006;174(11):1249-1256", "title": "Development and validation of a clinical prediction rule for severe community-acquired pneumonia" }, "formula": "scap", "formula_expression": "SCAP severe iff 1 major (ph_lt_7_30 or sbp_lt_90) OR >=2 minor (respiratory_rate_gt_30, altered_mental_status, bun_gt_30_mg_dl, hypoxemia, age_ge_80, multilobar_or_bilateral); 1 point per true predictor (España 2006 major/minor rule; not beta-derived integer cards); max 8", "max_score": 8, "score": 0, "major_count": 0, "minor_count": 0, "scap_severe": false } ] } ``` ## Response fields - `formula` (string): scap - `formula_expression` (string): España 2006 1-major or ≥2-minor rule with 1 point per true predictor - `score` (integer): Count of true predictors (0-8). Not a 13/11/9/6/5 weighted card. - `max_score` (integer): Always 8 - `major_count` (integer): Count of true major flags: ph_lt_7_30 and sbp_lt_90 (0-2) - `minor_count` (integer): Count of true minor flags: respiratory_rate_gt_30, altered_mental_status, bun_gt_30_mg_dl, hypoxemia, age_ge_80, multilobar_or_bilateral (0-6) - `scap_severe` (boolean): true when major_count ≥1 or minor_count ≥2 (España 2006). Not a pneumonia diagnosis and not an ICU-admission order. - `components` (array): Per-predictor points (1 if true, else 0) - `citation` (object): España 2006 AJRCCM citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "factor": "ph_lt_7_30", "points": 0, "present": false }, { "factor": "sbp_lt_90", "points": 0, "present": false }, { "factor": "respiratory_rate_gt_30", "points": 0, "present": false }, { "factor": "altered_mental_status", "points": 0, "present": false }, { "factor": "bun_gt_30_mg_dl", "points": 0, "present": false }, { "factor": "hypoxemia", "points": 0, "present": false }, { "factor": "age_ge_80", "points": 0, "present": false }, { "factor": "multilobar_or_bilateral", "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": "España PP, Capelastegui A, Gorordo I, Esteban C, Oribe M, Ortega M, Bilbao A, Quintana JM", "doi": "10.1164/rccm.200602-177OC", "id": "espana-2006", "pmid": "16973986", "source": "Am J Respir Crit Care Med. 2006;174(11):1249-1256", "title": "Development and validation of a clinical prediction rule for severe community-acquired pneumonia" }, "formula": "scap", "formula_expression": "SCAP severe iff 1 major (ph_lt_7_30 or sbp_lt_90) OR >=2 minor (respiratory_rate_gt_30, altered_mental_status, bun_gt_30_mg_dl, hypoxemia, age_ge_80, multilobar_or_bilateral); 1 point per true predictor (España 2006 major/minor rule; not beta-derived integer cards); max 8", "max_score": 8, "score": 0, "major_count": 0, "minor_count": 0, "scap_severe": false } ``` ## Errors - HTTP 400 `invalid_flag`: boolean clinical flags must be true or false Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [CURB-65](https://magentlab.com/docs/curb65) — Compute the CURB-65 community-acquired pneumonia severity score from age and discrete flags. - [PSI / PORT](https://magentlab.com/docs/psi-port) — Compute the Fine 1997 Pneumonia Severity Index (PORT) two-step risk class and Table 2 point total for community-acquired pneumonia. ## 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. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/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.