the402 x402 endpoint directory

MCP servers, called rather than listed · we called 16,923 of them · search their tools

Every x402 endpoint we can find, each one called to see what it actually answers and what it quotes. Other directories list what providers claim. This one reports what the endpoint did when we asked it, and says plainly where we could not tell.

Last verified 2026-10-12. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
api.magentlab.com calc alt_70
Raff 2017 ALT-70 for lower-extremity cellulitis vs pseudocellulitis. Caller-assigned unilateral involvement (3), WBC ≥
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc lrinec
LRINEC (Wong 2004): CRP ≥150 mg/L (4), WBC k/µL (<15 0, 15–25 1, >25 2), hemoglobin g/dL (>13.5 0, 11–13.5 1, <11 2),
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc cpis
Pugin 1991 clinical pulmonary infection score (CPIS, max 12) from temperature, leukocytes and band forms, tracheal sec
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc sirs
SIRS from Bone 1992 ACCP/SCCM: four binary criteria (temperature >38 or <36 °C, heart rate >90, respiratory rate >20 o
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc khorana
Khorana 2008 Blood predictive model for chemotherapy-associated thrombosis: very_high site (stomach or pancreas) 2, hi
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc riete
Ruiz-Giménez 2008 RIETE score for 3-month major bleeding after documented acute VTE. Six caller-assigned flags: recent
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc michigan_picc
Chopra 2017 Michigan Risk Score for PICC-associated thrombosis: another CVC at PICC placement 1, WBC >12 x10^9/L 1 (12
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc padua
Barbar 2010 Padua Prediction Score for hospitalized medical patients: cancer 3, previous VTE 3, reduced mobility 3, th
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc revised_geneva
Revised Geneva score (Le Gal 2006) for suspected PE in the emergency department: age >65 (1), previous DVT or PE (3),
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc hestia
Hestia criteria (Zondag 2011). Outpatient PE is eligible only when none of 11 caller-assigned exclusions hold: hemodyn
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc bova
Bova 2014 seven-point index for confirmed acute PE that is not hypotensive: SBP 90–100 mm Hg +2 (SBP 100 scores; 101 d
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc pesi
PESI (Pulmonary Embolism Severity Index) from Aujesky 2005: age in years plus male sex (+10), cancer (+30), heart fail
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc spesi
sPESI (simplified Pulmonary Embolism Severity Index) from Jiménez 2010: 1 point each for age >80, cancer, chronic card
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc ripasa
Chong 2010 RIPASA score from 15 caller-assigned findings (half-points; max 16). Age <40 scores 1.0, ≥40 scores 0.5; ma
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc air
Andersson 2008 appendicitis inflammatory response (AIR) score from caller-assigned vomiting, right-iliac-fossa pain, r
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc alvarado
Alvarado 1986 MANTRELS score from caller-assigned findings, temperature, WBC, and neutrophil percent (max 10). Bands 0
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc qsofa
qSOFA from Seymour 2016: respiratory rate ≥22, caller-assigned altered mentation, and systolic BP ≤100 mm Hg; 1 point
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc sofa
SOFA (Sepsis-related Organ Failure Assessment) from Vincent 1996 Table 3: six organs 0-4, max 24, from PaO2/FiO2 with
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc age_adjusted_dimer
Age-adjusted D-dimer cutoff (Righini 2014 ADJUST-PE). PE excluded only when D-dimer (ng/mL FEU) is strictly below 500
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc dash
Tosetto 2012 DASH (D-dimer, Age, Sex, Hormonal therapy) after a first unprovoked VTE: abnormal D-dimer after stopping
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc years
YEARS algorithm (van der Hulle 2017 Lancet). Count three caller-assigned items (clinical signs of DVT, hemoptysis, PE
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc perc
Eight-factor pulmonary embolism rule-out criteria (Kline 2004). PERC-negative only when all eight hold: age <50, pulse
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc feverpain
FeverPAIN from Little 2013 (PRISM): five caller-assigned flags (fever in past 24 hours, purulent tonsils, attendance w
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc centor
Centor or McIsaac (age-modified) score for streptococcal pharyngitis from four caller-assigned findings. edition=cento
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc wells_dvt
Wells deep-vein thrombosis probability from discrete clinical flags. Returns three-tier and two-tier bands. Determinis
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc wells_pe
Wells pulmonary-embolism probability from discrete clinical flags. Returns three-tier and two-tier bands. Deterministi
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc smart_cop
Charles 2008 SMART-COP for intensive respiratory or vasopressor support in community-acquired pneumonia: SBP <90 (2),
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc psi_port
Fine 1997 Pneumonia Severity Index (PSI/PORT): Class I if age ≤50 and no neoplastic, liver, CHF, cerebrovascular, or r
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc crb65
Lim 2003 CRB-65 for community-acquired pneumonia: confusion, respiratory rate ≥30/min, low blood pressure (SBP <90 or
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc curb65
CURB-65 pneumonia severity from age and discrete clinical flags. Deterministic published score with citation; not a tr
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc tisdale
Tisdale 2013 QT prolongation risk score (Table 5): age ≥68 (1), female (1), loop diuretic (1), potassium ≤3.5 mmol/L (
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc qtc
Heart-rate-corrected QT (Bazett or Fridericia). formula is required; magent does not pick one silently. Deterministic
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc sampson
Sampson 2020 estimated LDL-C from total cholesterol, HDL, and triglycerides (valid through 800 mg/dL). One unit system
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc friedewald
Friedewald estimated LDL-C from total cholesterol, HDL, and triglycerides. One unit system (mg/dL or mmol/L). Determin
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc adrogue_madias
Adrogué–Madias change in serum sodium after 1 L of infusate from TBW (child 0.6; adult male 0.6; adult female 0.5; eld
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc urine_anion_gap
Urine anion gap from urine sodium, potassium, and chloride (Na + K − Cl). Batlle 1988 interpretive band: negative sugg
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc stool_osmotic_gap
Eherer–Fordtran 1992 fecal osmotic gap: stool osmolality minus 2×(stool Na + stool K). Assumed stool osm 290 mOsm/kg w
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc anion_gap
Serum anion gap from sodium, chloride, and bicarbonate, with or without potassium. formula=without_k or formula=with_k
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc winters
Winters' formula for expected PCO2 in metabolic acidosis: 1.5 × bicarbonate + 8 mm Hg, with a published ±2 mm Hg range
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc free_water_deficit
Free water deficit from weight, sex, and measured Na using Adrogué–Madias TBW (0.6 male / 0.5 female). Deterministic p
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc sodium_deficit
Sodium deficit from weight, sex, and measured Na using Adrogué–Madias TBW (0.6 male / 0.5 female). Deterministic publi
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc serum_osmolality
Worthley 1987 calculated serum osmolality: 2×Na + glucose/18 + BUN/2.8. Optional osmolar gap when a measured osm is su
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc corrected_sodium
Sodium correction for hyperglycemia (Katz 1.6 or Hillier 2.4). formula is required; magent does not pick one silently.
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc bicarbonate_deficit
Bicarbonate deficit from weight and measured HCO3 using Adrogué–Madias 50 percent body-weight space. Deterministic pub
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc homa_ir
HOMA-IR as (fasting glucose in mmol/L × insulin in µU/mL) / 22.5 (Matthews et al. 1985). Provide glucose_mg_dl (50–100
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc a1c_eag
Nathan/ADAG A1C to estimated average glucose conversion, or the reverse. Provide exactly one of a1c_percent or eAG. De
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc corrected_calcium
Payne albumin-corrected calcium from total calcium and albumin. Deterministic published formula with citation; not a t
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc ses_cd
Daperno 2004 simplified endoscopic activity score for Crohn's disease (SES-CD): caller-assigned integers 0-3 for ulcer
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc haps
HAPS (Lankisch 2009). Harmless iff rebound tenderness and/or guarding is absent, hematocrit is normal, and serum creat
answers 402 $0.005 base v2 POST 36d ago
api.magentlab.com calc glasgow_imrie
Blamey 1984 Glasgow-Imrie eight-factor pancreatitis score: age >55, WBC >15 ×10^9/L, glucose >10 mmol/L, urea >16 mmol
answers 402 $0.005 base v2 POST 36d ago
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