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 2026-10-02. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
api.magentlab.com calc rome_iv_belching
Stanghellini 2016 Rome IV belching disorders (B2). rome_iv_belching is true iff bothersome (severe enough to impact us
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc bun_creatinine_ratio
Richards 1990 BUN/creatinine ratio as bun_mg_dl / creatinine_mg_dl, rounded to one decimal. A ratio of 36 or greater s
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc isth_bat
Rodeghiero 2010 ISTH/SSC bleeding assessment tool (BAT). Fourteen caller-assigned Table S1 symptom integers (0-4; cns_
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc fracture_index
Black 2001 FRACTURE Index with known total-hip T-score. Age <65 0 through >=85 5. T >= -1 0; -2 <= T < -1 2; -2.5 <= T
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc wisconsin_criteria
Sitzman 2011 Wisconsin Criteria. Meets criteria if any one of five caller-assigned findings is true: bony step-off or
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc miller_esr
Adult maximum normal erythrocyte sedimentation rate (mm/h, 98th percentile approximation) from age and sex (Miller 198
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc pediatric_asthma_score
Qureshi 1998 pediatric asthma score: five caller-assigned 1-3 domains — respiratory_rate (Table 1 age-banded ordinal,
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc ice
Lee 2019 Immune Effector Cell-Associated Encephalopathy (ICE) points: orientation 0-4 (year, month, city, hospital), n
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc esas_r
Watanabe 2011 ESAS-r from nine caller-assigned integers 0-10 (pain, tiredness, drowsiness, nausea, lack of appetite, s
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc dast_10
Skinner 1982 10-item Drug Abuse Screening Test (DAST-10). Caller-assigned yes/no items; score is the count of answers
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc cirs_g
Miller 1992 CIRS-G from 14 caller-assigned organ-system integers 0-4 (heart, vascular, hematopoietic, respiratory, EEN
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc liu_respiratory
Liu 2004 respiratory clinical score: four caller-assigned 0-3 domains — respiratory_rate (age-banded Table 1 ordinal,
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc phases
Greving 2014 PHASES 5-year rupture risk for an unruptured intracranial aneurysm. Caller assigns population (north_amer
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc triss
TRISS (Boyd 1987): probability of survival from a caller-assigned Champion weighted RTS (0.0-7.8408), ISS (1-75), age
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc ace
Felitti 1998 ACE Study: seven caller-assigned exposure categories (psychological abuse, physical abuse, sexual abuse,
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc hcm_risk_scd
O'Mahony 2014 HCM Risk-SCD: 5-year SCD probability from wall thickness, LA diameter, LVOT gradient, family history of
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc resect_90
Taylor 2021 RESECT-90 logistic 90-day mortality after lung resection from age, sex, ECOG, percent predicted DLCO, BMI,
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc denver_bcvi
Modified Denver BCVI (Cothren 2005). Positive if any sign (arterial hemorrhage; cervical bruit age <50; expanding cerv
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc epiphany
Carmona-Bayonas 2017 EPIPHANY CHAID tree for cancer-associated PE. Hestia-like CDR any vs none, then ECOG-PS, SaO2, PE
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc sofa_2
Ranzani 2025 SOFA-2 from six organs 0-4 (brain, respiratory, cardiovascular, liver, kidney, hemostasis), max 24. Maps
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc steinhart
Steinhart 2009 Equation 1 probability of acute heart failure from caller-assigned age, clinician pretest probability (
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc rhmp_30
de Jong 2025 Rotterdam Hip Fracture Mortality Prediction-30 Days (RHMP-30) LASSO logit from age, sex (published female
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc pmp
Ghanem 2012 Table 5 bedside preoperative mortality predictor. Inpatient 6, sepsis 4, poor functional status (total ADL
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc scarf
Hardin 2019 SCARF from four caller-assigned flags (incentive spirometry <50% predicted, respiratory rate >20, numeric
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc readmits
Nguyen 2018 first-day AMI READMITS integer score for 30-day all-cause readmission: creatinine >2 mg/dL (6), elevated B
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc promise
Psallidas 2018 Table 2A clinical PROMISE for malignant pleural effusion: chemo 0/4, radiotherapy 0/2, haemoglobin g/dL
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc rescue_ihca
Tonna 2022 RESCUE-IHCA Table 2 integer score for in-hospital death after adult ECPR. Age 2 + 2 per 10 years after 20.
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc hope
Pasquier 2018 HOPE survival probability after ECLS for hypothermic cardiac arrest from sex (published male coefficient
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc pedocs
Weiss 2007 Pediatric Emergency Department Overcrowding Scale (PEDOCS) two-variable model: waiting-room patients and to
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc gupta_pneumonia
Gupta 2013 Mayo Clin Proc logistic probability of postoperative pneumonia from age, COPD, ASA class, functional status
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc orbi
Auffret 2018 ORBI integer score for in-hospital cardiogenic shock after STEMI treated by primary PCI. Rounded adjusted
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc possum
Copeland 1991 POSSUM surgical audit: 12 physiologic and 6 operative 1/2/4/8 items (age has no 8; ECG has no 2). Return
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc cedocs
Weiss 2014 Community ED Overcrowding Scale (CEDOCS) reduced model: critical-care patients, longest admitted-patient ho
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc preset
Hilder 2017 PRESET-Score: five Table 4 items (MAP mm Hg, lactate mmol/L, arterial pH, platelets k/uL, hospital days pr
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc resp
Schmidt 2014 RESP Table 3 (-22 to 15): age 18-49 0, 50-59 -2, >=60 -3; immunocompromised -2; MV lt_48h +3, h48_to_7d +
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc save
Schmidt 2015 SAVE-score from Table 4 integer cells plus constant −6. Age, weight, additive diagnoses, chronic renal fa
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc itas2010
Misra 2013 ITAS2010: weighted sum of 44 caller-assigned Takayasu clinical-activity items that are new or worsening wit
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc c_diva
Bell 2023 C-DIVA from four caller-assigned 0-2 domains (visual appearance, palpable sites, history of difficult access
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc saps_3
Moreno 2005 SAPS 3 admission score from caller-assigned ICU-hour boxes (age, comorbidities, stay, location, vasoactive
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc nafcs
Hegele 2025 NAFCS. Table 3 points from age or early HTG onset, BMI, abdominal pain or pancreatitis, secondary factors,
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc ain_risk
Moledina 2022 development-model logistic probability of biopsy-proven acute interstitial nephritis from serum creatini
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc pediatric_nihss
Ichord 2011 Pediatric NIH Stroke Scale (PedNIHSS): 15 caller-assigned NINDS NIHSS integers with left and right motor a
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc brue_2
Nama 2022 Supplemental Table 7 logistic probabilities of a serious underlying diagnosis and of event recurrence after
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc euroscore_ii
Nashef 2012 EuroSCORE II Table 6 logistic in-hospital mortality after adult cardiac surgery. Age Xi is 1 if age <= 60,
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc parc
Kharbanda 2018 Table 3 pediatric appendicitis risk calculator (pARC): logistic probability from sex, age (5-18 years),
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc gupta_prf
Gupta 2011 Chest logistic probability of postoperative respiratory failure (mechanical ventilation >48 h after surgery
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc easi
Hanifin 2001 EASI from four regions. Each region: area 0-6 and erythema, edema/papulation, excoriation, and lichenific
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc saps_ii
Le Gall 1993 Simplified Acute Physiology Score II from 12 physiology variables (worst values in the first 24 hours as
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc virsta
Tubiana 2016 VIRSTA from nine caller-assigned SAB flags plus CRP mg/L. Points: emboli 5, meningitis 5, device or previ
answers 402 $0.005 base v2 POST 26d ago
api.magentlab.com calc martin_ldl
Martin 2013 estimated LDL-C from total cholesterol, HDL, and triglycerides in mg/dL. Adjustable TG:VLDL-C factor from
answers 402 $0.005 base v2 POST 26d ago
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