the402 x402 endpoint directory

ERC-20 token metadata on Base, Ethereum, Arbitrum, Optimism, Polygon or BNB (default Base): name, symbol, decimals and

Generate a QR code from text as PNG (base64) or SVG. Custom module size, quiet-zone margin, and hex colours. Determini

Forward geocoding — Place name → coordinates, country, timezone.

Haimovich 2020 qCSI (Table 2 bedside points): RR ≤22 → 0, 23–28 → 1, >28 → 2; SpO2 >92 → 0, 89–92 → 2, ≤88 → 5; O2 ≤2

Browse Quotient's canonical underlying-asset directory without forecast or venue-price data. Use this for stable Asset

Unit conversion — Convert between units (length, mass, volume, speed, area, data, time, pressure, energy, temperature,

LLM completion per call, no account and no API key: POST a prompt (or a messages array) and get the model answer as JS

EU VAT decision engine for invoicing and e-invoicing: determines place of supply, reverse charge, intra-Community supp

Compare one grocery item across nearby stores in a US ZIP: price, sale price, package size, price per comparable unit,

MCPFax markets — Crypto spot prices (crypto). Price: $0.001 USDC per call on Base.

robots.txt / llms.txt — Fetch and parse a site's robots.txt and llms.txt.

Total value locked for any DeFi protocol with per-chain breakdown via DefiLlama, by protocol slug such as aave-v3 or u

Apgar score from five 0-2 newborn signs (appearance, pulse, grimace, activity, respiration). Deterministic published s

Sheiner–Tozer / Winter–Tozer albumin-adjusted total phenytoin: Ccorr = Cobs / ((0.2 or 0.1) × albumin_g_dl + 0.1). Ren

Convert a glucocorticoid milligram dose among hydrocortisone, prednisone, and dexamethasone using Meikle 1977 equivale

CDC 2022 morphine milligram equivalents from a published opioid key and dose (mg/day, or mcg/hr for fentanyl_transderm

Gross 1983 dilution-corrected allowable blood loss from caller-supplied estimated blood volume and initial versus targ

Ganzoni 1970 iron deficit: weight_kg * (target_hemoglobin_g_dl - hemoglobin_g_dl) * 2.4 + iron_stores_mg. Deterministi

Forrest 2003 original Glasgow Prognostic Score (GPS) from CRP in mg/L and albumin. Elevated CRP is >10 mg/L; hypoalbum

McMillan 2007 modified Glasgow Prognostic Score (mGPS) from CRP in mg/L and albumin. Elevated CRP is >10 mg/L; hypoalb

Neutrophil-to-lymphocyte ratio from relative neutrophil and lymphocyte percents (Zahorec 2001). Deterministic publishe

Corrected reticulocyte count (retic% × Hct/45), Hillman 1969 maturation-shift reticulocyte index, and optional absolut

Taylor 2001 ISTH SSC overt DIC (four lab items; max 8). Platelets >=100=0, 50-<100=1, <50=2. fibrin_related_marker non

Bendapudi 2017 PLASMIC: seven 1-point items (platelets <30×10^9/L, caller-assigned hemolysis, no active cancer, no sol

4Ts score (Lo 2006) for heparin-induced thrombocytopenia pretest probability. Four caller-assigned integers 0-2 (throm

Palumbo 2015 R-ISS for multiple myeloma. ISS from beta-2 microglobulin and albumin (Greipp 2005). R-ISS I: ISS I, stan

Greipp 2005 International Staging System for multiple myeloma. Stage I: serum beta-2 microglobulin <3.5 mg/L and album

Motzer 1999 MSKCC: KPS <80, LDH >1.5×ULN, hemoglobin <LLN, corrected calcium >10 mg/dL, no prior nephrectomy; 1 point

Heng 2009 IMDC: KPS <80, diagnosis-to-treatment <1 year, hemoglobin <LLN, corrected calcium >ULN, neutrophils >ULN, pl

GELF criteria (Brice 1997). High tumor burden in follicular lymphoma if any of eight caller-assigned items: mass >7 cm

Oken 1982 ECOG performance status: caller-assigned integer 0-4 (fully active; restricted strenuous activity, ambulator

Shipp 1993 IPI for aggressive non-Hodgkin lymphoma: age >60, Ann Arbor III or IV, extranodal sites >1, ECOG ≥2, LDH >

Solal-Céligny 2004 FLIPI: age >60, Ann Arbor III–IV, hemoglobin <120 g/L, nodal areas >4, LDH above ULN; 1 point each,

Hasford 2011 EUTOS score for baseline untreated chronic myeloid leukemia (CML). eutos_score = 4 * spleen_cm + 7 * baso

Sokal 1984 relative-risk index for newly diagnosed untreated chronic granulocytic leukemia (CML). sokal_index = exp(0.

Mentzer index as MCV in fL divided by RBC count in millions per µL (Mentzer 1973 Lancet letter). Quotient <13 favors β

Absolute neutrophil count from WBC and neutrophil plus band percents. Bodey 1966 granulocyte bands. Deterministic publ

ROPE (Risk of Paradoxical Embolism; Kent 2013 Neurology Table 4) from age decades (18-29 5, 30-39 4, 40-49 3, 50-59 2,

4AT (Bellelli 2014): alertness (normal 0, abnormal 4) + AMT4 mistake count 0/1/2 + attention 0/1/2 + acute change or f

Richmond Agitation-Sedation Scale (RASS, Sessler 2002) as assigned by the caller: integer -5 to +4 with the published

CAM-ICU (Ely 2001). Delirium is present iff Feature 1 (acute onset or fluctuating course) and Feature 2 (inattention)

THRIVE (Totaled Health Risks in Vascular Events; Flint 2010 AJNR) from trichotomized age (<=59 0, 60-79 1, >=80 2), tr

FOUR score (Wijdicks 2005) from caller-assigned eye, motor, brainstem, and respiration integers 0-4; magent sums only

Frontera 2006 modified Fisher CT grades 0-4 for subarachnoid hemorrhage as assigned from CT by the caller. Returns the

Fisher 1980 original CT groups 1-4 for subarachnoid hemorrhage as assigned from CT by the caller. Returns the publishe

Kothari 1996 ABC/2 ellipsoid ICH volume: (a_cm × b_cm × c_cm) / 2, rounded to one decimal milliliter. A is the largest

Hunt and Hess 1968 SAH surgical-risk grade from a caller-assigned grade 1-5. Serious systemic disease (as assigned by

Modified Rankin handicap grade 0-5 (van Swieten 1988) as assigned by the caller. Returns the published wording (no sym

Rost 2008 FUNC score (0-11) after primary ICH from caller-assigned volume, age, location (lobar/deep/infratentorial),

Hemphill 2001 ICH Score from caller-assigned GCS, age, infratentorial origin, ICH volume (mL), and IVH; max 6. GCS 3-4