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 2026-09-28. We parse the payment challenge, we do not complete a payment.

EndpointStatusPriceNetworkSpecChecked
api.magentlab.com calc pons
Wischmeyer 2018 PONS: four caller-assigned yes/no flags (BMI <18.5 kg/m² if age ≤65 or <20 if age >65; weight loss >10
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc must
Stratton 2004 Malnutrition Universal Screening Tool (MUST) for adults. Three additive scores, max 6: BMI (>20 → 0, 18.
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc cfs
Rockwood 2005 CSHA Clinical Frailty Scale 1-7 as assigned by the caller (Box 1). Returns cfs, score, max 7, and the pu
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc nhfs
Maxwell 2008 Nottingham hip fracture score: age <=65 0, 66-85 3, >=86 4; male 1; hemoglobin <=10 g/dL 1 (g/L / 10); ca
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc regiscar
Kardaun 2007 RegiSCAR DRESS scoring letter from ten caller-assigned items (sum -4 to 9). Bands: <2 none, 2-3 possible,
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc scorten
Bastuji-Garin 2000 SCORTEN from seven caller-assigned flags (age >40, malignancy, HR >120, detachment >10% BSA, urea >
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc brue
BRUE (Tieder 2016 AAP). brue is true iff the infant is younger than 1 year, the episode was sudden, brief, and now res
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc acef_ii
Ranucci 2018 ACEF II for cardiac surgery: ACEF II = age/EF + 2.0 if serum creatinine > 2.0 mg/dL + 3.0 if emergency su
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc rule_7s
Cohn 2012 Rule of 7s. Low-risk for Lyme meningitis iff all three hold: headache duration <7 days, CSF mononuclear cell
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc rochester
Dagan 1985 Rochester criteria. Low-risk only if the infant is younger than 3 months (age_days 0-89) and every caller-a
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc ort
Webster 2005 Opioid Risk Tool from Table 1 sex-specific weights. Ten caller-assigned yes/no flags (absent = 0). Age 16
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc os_mrs
DeMaria 2007 obesity surgery mortality risk score (OS-MRS): five caller-assigned flags (BMI ≥50 kg/m², male, hypertens
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc asas_axial_spa
ASAS 2009 axial SpA classification (Rudwaleit set 3a / fig 2). Required: chronic back pain ≥3 months and age at onset
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc acr_eular_sjogren
ACR/EULAR 2016 primary Sjögren classification (Shiboski Table 3). Required: inclusion_met true (AECG dryness or ESSDAI
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc acr_eular_pmr
ACR/EULAR 2012 PMR classification (Dasgupta Table 4). Required: age 50–120, bilateral shoulder aching, abnormal CRP or
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc acr_eular_gout
ACR/EULAR 2015 gout classification (Neogi). MSU crystals classify without score ≥8; else score ≥8 (max 23). Pattern 0/
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc go_far
Ebell 2013 GO-FAR integer score for CPC 1 after in-hospital CPR. Exclusive age (<70=0, 70-74=2, 75-79=5, 80-84=6, >=85
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc news2
NEWS2 from RCP 2017 Chart 1: respiratory rate, SpO2 on caller-assigned Scale 1 or Scale 2, supplemental oxygen, temper
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc cart
CART integer score from Churpek 2012 Table 3 (beta x 9): maximum respiratory rate, maximum heart rate, minimum diastol
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc rems
REMS from Olsson 2004 Table 1: MAP, heart rate, respiratory rate, SpO2, GCS (RAPS 0–4, not 15−GCS), and age summed to
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc stumbl
Battle 2014 STUMBL integer score after blunt chest wall trauma: 1 point per decade of age starting at 10, 3 per rib fr
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc pts
Pediatric Trauma Score from Tepas 1987: six caller-assigned items (weight, airway, systolic BP, CNS, skeletal, wound),
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc peg
Krebs 2009 PEG from three caller-assigned integers 0-10 (pain_average, enjoyment_of_life, general_activity). Unweighte
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc hark
Sohal 2007 HARK: four caller-assigned yes/no flags (humiliation, afraid, rape, kick), 1 point each, max 4. Screen-posi
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc hits
Sherin 1998 HITS from four caller-assigned integers 1-5 (hurt, insult, threaten, scream; never=1 to frequently=5). mag
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc crafft
Knight 2002 CRAFFT: six caller-assigned yes/no flags (car, relax, alone, forget, friends, trouble), 1 point each, max
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc scoff
Morgan 1999 SCOFF questionnaire: five caller-assigned yes/no flags (make yourself sick, lost control over eating, lost
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc paradise
Paradise 1984 eligibility frequency for recurrent throat infection. paradise_criteria is true iff qualifying_episode_f
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc nirudak
Barry 2021 NIRUDAK Table 2 integer score (max 13) for patients 5–120 years with acute diarrhea: age, sex, eye_level, r
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc dhaka
Levine 2015 DHAKA Dehydration Score (Table 3, not the Tree): appearance 0/2/4, respirations 0/2, skin pinch 0/2/4, tea
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc aldrete
Aldrete 1970 postanesthetic recovery score from five caller-assigned 0-2 signs (activity, respiration, circulation, co
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc heaven
Davis 2017 HEAVEN criteria from six caller-assigned flags: hypoxemia (SpO2 ≤93% at initial laryngoscopy as assigned),
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc egri
El-Ganzouri 1996 simplified airway risk index (0/1/2): mouth opening >4 cm=0, <=4=1; thyromental >6.5 cm=0, 6.0-6.5=1,
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc asa_physical_status
ASA Physical Status Classification System (ASA House of Delegates 2014, last amended 2020). Caller-assigned class 1-6
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc mallampati
Samsoon 1987 modified Mallampati: caller-assigned integer class 1-4 (I: soft palate, fauces, uvula, pillars; II: soft
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc braden
Bergstrom 1987 Braden Scale: six caller-assigned subscales — sensory_perception, moisture, activity, mobility, nutriti
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc nutric
Heyland 2011 original 6-variable NUTRIC (Nutrition Risk in the Critically Ill) including IL-6, Table 4 overall: age 0-
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc nrs_2002
Kondrup 2003 NRS-2002: nutrition_status (0-3) + disease_severity (0-3) + 1 if age ≥70 (70 scores); max 7. at_risk true
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc nri
VA TPN 1991 Nutritional Risk Index (NEJM): NRI = 1.519*albumin_g_l + 41.7*(current/usual weight). Malnourished if NRI
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc hospital
HOSPITAL (Donze 2013 JAMA Intern Med acronym table): hemoglobin_lt_12 (last Hb <12 g/dL) 1; oncology_service 2; sodium
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc gupta_mica
Gupta 2011 Table 2 logistic probability of 30-day myocardial infarction or cardiac arrest after surgery from age, ASA
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc palchak
Palchak 2003. High risk after blunt head trauma in children 0-17 if any applicable predictor: abnormal mental status,
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc step_by_step
Gomez 2016 Step-by-Step for febrile infants 90 days and younger (derivation Mintegi 2014). High if ill-appearing, age
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc pecarn_febrile
Kuppermann 2019 PECARN prediction rule for febrile infants 60 days and younger. Low-risk only if all three hold: calle
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc pecarn_cspine
PECARN pediatric C-spine (Leonard 2024). No age split. High (consider CT) if GCS 3-8 or AVPU U; abnormal airway, breat
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc pecarn_iai
PECARN pediatric IAI (Holmes 2013). Very low risk of IAI requiring acute intervention only when all seven caller-assig
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc tokuhashi
Revised Tokuhashi 2005 (0-15). KPS poor/moderate/good 0/1/2. Extraspinal ge_3/one_or_two/none 0/1/2. Vertebral ge_3/tw
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc mirels
Mirels 1989 impending pathologic fracture score. Site upper 1 / lower 2 / peritrochanteric 3. Size lt_one_third 1 / on
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc sins
Fisher 2010 SINS. Location junctional 3 / mobile 2 / semirigid 1 / rigid 0. Pain mechanical 3 / occasional_not_mechani
answers 402 $0.005 base v2 POST 24d ago
api.magentlab.com calc slics
Vaccaro 2007 SLICS: morphology none 0 / compression 1 / burst 2 / distraction 3 / rotation_translation 4 (single most
answers 402 $0.005 base v2 POST 24d ago
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