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 2026-10-13. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
api.magentlab.com calc mcdonald_2017
2017 McDonald typical CIS (Thompson 2018). mcdonald_ms iff typical_cis and no_better_explanation and: ≥2 attacks with
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc duke_iscvid
2023 Duke-ISCVID (Fowler) IE criteria. Definite if pathologic_definite or clinical_definite (2 major, or 1 major plus
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc hiet
High-dose insulin euglycemia therapy (HIET) from Engebretsen 2011: 1 U/kg insulin bolus, then a 1-10 U/kg/h continuous
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc mars
Jawhar 2019 mutation-adjusted risk score (MARS) for advanced systemic mastocytosis: age >60 (1), hemoglobin <10 g/dL (
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc rest_lgs
Wolf 2024 REST-LGS: four major criteria (+3 each) and four minor (+1 each). Max 16. likely if score > 11, possible if
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc bclc
Reig 2022 BCLC stage 0/A/B/C/D from caller-assigned cancer-related ECOG, preserved liver function, transplant option,
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc ardsnet_tv
ARDS Network 2000 predicted body weight (PBW) from height and sex, and the lower-tidal-volume arm 6 mL/kg PBW. Male PB
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc tpe
Kaplan 1990 estimated plasma volume for therapeutic plasma exchange: epv_l = 0.065 * weight_kg * (1 - hematocrit_perce
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc smm_22020
Lakshman 2018 2/20/20 smoldering myeloma risk: one point each for BMPC >20%, serum M-protein >2 g/dL, and involved/uni
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc crash
Extermann 2012 CRASH chemotherapy toxicity score (not trauma CRASH): diastolic BP, IADL, LDH versus ULN, caller-assign
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc carg_tt
Hurria 2011 Table 5 CARG toxicity: age ≥72 (+2), GI/GU (+2, not inverted), standard dose (+2), polychemotherapy (+2),
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc priest
Goodacre 2021 PRIEST: NEWS2 Chart 1 Scale 1 vitals (RR, SpO2 Scale 1 only, oxygen +2, temperature, SBP, HR) + alertnes
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc levothyroxine_dose
Adult levothyroxine (LT4) full-replacement estimate: daily_lt4_mcg = weight_kg * 1.6 (ATA 2014). Weight in kg or lb. N
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc gi_gpa
Sperduto 2019 updated GI-GPA: KPS <80 = 0, 80 = 1.0, 90-100 = 2.0; age >=60 = 0, <60 = 0.5; extracranial metastases pr
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc tdn_grade
Terrapon 2021 Therapy-Disability-Neurology (TDN) grade. Caller assigns therapy t1-t5, modified Rankin 0-6 (6 is death)
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc pas_ii
Wolfe 2005 Patient Activity Scale II (PAS-II): (haq_ii * 3.33 + pain_vas + patient_global_vas) / 3. HAQ-II 0-3 (not HA
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc cpri
Saisho 2011 CPR index: serum C-peptide (ng/mL) / plasma glucose (mg/dL) * 100, two decimals. timing fasting or postpra
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc bmv
Farris 2017 brain metastasis velocity: bmv = new_brain_metastases / years_since_first_srs, 1 decimal. new_brain_metast
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc rapid_hip
Hevesi 2018 hip RAPID: sex (female 0, male 1) + Tonnis 0/1/2 (0, 2, 3 points; grade 3 invalid) + caller-assigned cam (
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc bastion
Bastion classification of lower-limb IED injury (Jacobs 2014). Caller assigns class 1-5 as the most proximal extent. R
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc wound_class
CDC/HICPAC surgical wound classification Class I-IV as assigned by the caller (Mangram 1999 Table 7). Returns wound_cl
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc trunk_impairment
Verheyden 2004 original Trunk Impairment Scale from caller-assigned static sitting balance 0-7, dynamic sitting balanc
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc setscore
Schönenberger 2016 SETscore: 15 caller-assigned flags (neurological function, lesion, organ function/procedure). Weigh
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc pasi
Fredriksson 1978 PASI from four regions. Each region: area 0-6 and erythema, induration, and scaling 0-4. Region score
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc riske
Olmos 2017 RISK-E (Risk-Endocarditis) for in-hospital mortality after cardiac surgery in active left-sided IE. Age <=5
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc ho_index
Ho 2004 day-3 IV-steroid score for severe UC (0–9): mean stools (<4 → 0; 4 ≤ x < 6 → 1; 6 ≤ x ≤ 9 → 2; x > 9 → 4), cal
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc scorma
Heide 2001 SCORMA: extent_percent/5 + 5*intensity_sum + 2*symptom_sum/5. Extent 0-100 (diffuse cutaneous mastocytosis
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc face_drops
McEntire 2025 FACE DROPS: seven caller-assigned flags for acute Lyme disease-associated facial palsy versus Bell palsy
answers 402 $0.005 base v2 POST 37d ago
api.magentlab.com calc rome_iv_child_nausea_vomiting
Hyams 2016 Rome IV H1b. Functional nausea iff 2-month duration plus bothersome_nausea_twice_weekly_not_meal_related, n
answers 402 $0.005 base v2 POST 37d ago
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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d 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 37d ago
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