the402 x402 endpoint directory

Fractional excretion of sodium (FENa) from plasma and urine sodium and creatinine. Espinel 1976 oliguric ARF strata. D

Chen 2013 kinetic eGFR (KeGFR) from two plasma creatinines, hours between them, caller-assigned steady-state creatinin

Cockcroft-Gault creatinine clearance from age, sex, total body weight, and creatinine. Use when a label still doses on

CKD-EPI 2021 creatinine eGFR (race-free). Use when an agent must not guess kidney function from a language model. Dete

Duan 2017 HACOR (ESM Table 2): HR ≤120 → 0, ≥121 → 1; pH ≥7.35 → 0, 7.30–7.34 → 2, 7.25–7.29 → 3, <7.25 → 4; GCS 15 →

Chung 2008 Appendix 2 STOP-Bang OSA screen. Four caller-assigned STOP flags (loud snoring heard through closed doors,

BAP-65 (Tabak 2009) class I–V for acute exacerbation of COPD. Three caller-assigned main factors: BUN >25 mg/dL, alter

Steer 2012 DECAF: eMRCD 1-4 → 0, 5a → 1, 5b → 2; eosinophils <0.05 ×10^9/L → 1 (0.05 does not score); caller-assigned

Ley 2012 GAP index (points) from sex (male 1), age (≤60 → 0, 61–65 → 1, >65 → 2), FVC % predicted (>75 → 0, 50–75 → 1,

Celli 2004 BODE index from BMI (≤21 → 1), FEV1 % predicted (0–3), MMRC dyspnea (0–3), and 6-minute walk in meters (0–3

Nunn and Gregg 1989 predicted adult peak expiratory flow (L/min) from age, sex, and height. Sex-specific ln(PEF) regre

Light 1972 pleural fluid criteria: exudate if protein ratio > 0.5, LDH ratio > 0.6, or pleural LDH > two-thirds the la

SpO2/FiO2 (S/F) ratio as pulse-oximetry SpO2 percent divided by inspired oxygen as a fraction (0.21–1.0) (Rice 2007).

ROX index as (SpO2 percent / FiO2) / respiratory rate in breaths/min (Roca 2016). Returns the index rounded to two dec

Rapid shallow breathing index (RSBI) as respiratory rate in breaths/min divided by tidal volume in liters (Yang and To

Murray 1988 lung injury score (LIS): mean of four 0–4 components (caller-assigned CXR quadrants; PaO2/FiO2 ≥300→0, 225

Oxygenation index from FiO2 as a fraction (0.21–1.0), mean airway pressure in cm H2O, and PaO2: FiO2 × MAP × 100 / PaO

Alveolar–arterial oxygen gradient from FiO2, barometric pressure, PaCO2, PaO2, and RQ using the simplified alveolar-ga

Beaubien-Souligny 2020 VExUS C only (not A, B, D, or E). Caller-assigned ivc_dilated (IVC ≥2 cm) plus hepatic, portal,

Gillmore 2018 NAC ATTR cardiac staging from NT-proBNP (ng/L) and caller-assigned eGFR. Stage I: NT-proBNP <=3000 and e

Reddy 2018 H2FPEF points score. Six components, max 9: BMI >30 (2), >=2 antihypertensives (1), atrial fibrillation (3)

Fonarow 2005 ADHERE CART bedside tree from admission BUN, systolic BP, and serum creatinine. high: BUN>=43, SBP<115, C

Korabathina 2012 pulmonary artery pulsatility index from PA systolic (mm Hg), PA diastolic (mm Hg), and RAP (mm Hg): P

Diastolic shock index as heart rate in bpm divided by cuff diastolic pressure in mm Hg (Ospina-Tascón 2020). Returns t

Fincke 2004 cardiac power output from MAP (mm Hg) and cardiac output (L/min): CPO = MAP × CO / 451. Returns cpo_watts

Shock index as heart rate in bpm divided by cuff systolic pressure in mm Hg (Allgöwer and Burri 1967). Returns the ori

Mean arterial pressure from cuff systolic and diastolic BP using diastolic + pulse pressure / 3. Conventional 1/3 esti

Adult Parkland crystalloid volume: 4 mL × kg × %TBSA for 24 hours, half in the first 8 hours from the time of injury.

Holliday–Segar 1957 daily maintenance water from weight: 100 mL/kg for the first 10 kg, 50 mL/kg for the next 10 kg, 2

Body roundness index from height and waist (Thomas 2013). Models the body as an ellipse: e = sqrt(1 - (waist/(pi*heigh

Nadler 1962 predicted blood volume in liters from height, weight, and sex (separate male and female equations). Determ

Harris–Benedict 1919 basal energy expenditure (kcal/day) from height, weight, age, and sex. Deterministic published fo

Devine ideal body weight and 0.4 adjusted body weight from height, sex, and actual weight. Deterministic published for

Mosteller body surface area from height and weight. Use for oncology dosing arithmetic. Deterministic published formul

Body-mass index from height and weight (Keys/Quetelet). Use for GLP-1 and bariatric prior-auth arithmetic. Determinist

Heuristic on-chain labels for any address - contract vs EOA, activity tier, balance band and transaction count - on EV

South African SA benchmark bond yields (SARB closing yields on the R2030 and R209 South African government benchmark b

Budget commercial images via SDXL Lightning for $0.005 USDC. Call when you need a quick concept, thumbnail, or low-cos

Bundled execution of the Wallet audit workflow - Full wallet activity review: balance, recent transactions, and token

Bundled execution of the JSON pipeline workflow - Validate, pretty-print, and convert JSON to CSV in one pass - the co

Current gas price on Base (Ethereum L2), read live via a public RPC endpoint — no API key, no aggregator. No parameter

Observed USDC inflow, payer breadth, trend, and cohort rank

Robinson 2011 Table 3 pCANRISK (not eCANRISK). Age 0/7/13/15; male 6; BMI 0/4/9/14; waist 0/4/6 by sex; inactivity 1;

Haukoos 2012 Table 2 FULL Denver HIV score (not abbreviated). Age bands, sex, ethnicity, and five caller-assigned flag

Smith 2012 seven-item HIV incidence risk index for MSM. Age 18-28=8, 29-40=5, 41-48=2, >=49=0; male partners 0-5=0, 6-

Lyon 2020 HFA-ICOS baseline cardiovascular risk before anthracycline chemotherapy. Returns risk_level low, medium, hig

Reid 1985 four-sign colposcopic index: four caller-assigned 0-2 items (margin, color, vessels, iodine; max 8). band 0-

Vertesi 2003 RASP multiplies exclusive source (A), inoculum type (B), and transmission (C) to Z, then total_risk = (1/

ASCO 2018 (Brahmer) immune-related hepatitis grade from caller AST, ALT, and total bilirubin as folds of laboratory UL

Dubois 2014 IWG-2 typical AD research criteria. typical_ad iff early hippocampal-type episodic memory, no better expla