magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
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Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
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"description": "Cuker 2010 HEP score: eight features with signed weights (range -16 to 19). Magnitude of platelet fall, typical- or rapid-onset timing, nadir, thrombosis (at most one), SQ heparin skin necrosis, IV-bolus systemic reaction, bleeding, and other causes (select all; no other cause +3). Cutoff 2 was 100% sensitive / 60% specific vs the expert panel. Not a HIT diagnosis or 4Ts score. magent does not assay SRA or ELISA.",
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"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"score_ge_2": true,
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"formula_expression": "HEP = magnitude (lt_30 -1, 30_to_50 1, gt_50 3) + timing (typical_lt_4 -2, typical_day_4 2, typical_5_10 3, typical_11_14 2, typical_gt_14 -1; rapid_lt_48h 2, rapid_gt_48h -1) + nadir (le_20 -2, gt_20 2) + thrombosis select at most one (none 0; typical_new_ge_4d 3, typical_progression 2; rapid_new 3, rapid_progression 2) + skin_necrosis 3 + systemic_reaction 2 + bleeding -1 + other causes select all (chronic_thrombocytopenia -1, new_drug_thrombocytopenia -2, severe_infection -2, overt_dic -2, intra_arterial_device -2, cpb_96h -1, no_other_cause 3 mutually exclusive with other causes); Cuker 2010; range -16 to 19; cutoff 2 was 100% sensitive / 60% specific vs expert panel; cutoff 5 was 86% sensitive / 88% specific"
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"type": "string",
"description": "Caller-assigned Cuker 2010 timing. Typical-onset: typical_lt_4 (fall begins <4 days) -2; typical_day_4 (day 4) 2; typical_5_10 (days 5-10) 3; typical_11_14 (days 11-14) 2; typical_gt_14 (>14 days) -1. Rapid-onset after re-exposure within 100 days: rapid_lt_48h (<48 h) 2; rapid_gt_48h (>48 h) -1. magent does not infer day of onset."
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"description": "Presence of bleeding, petechiae, or extensive bruising (Cuker 2010). true scores -1; false scores 0."
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"description": "No other apparent cause of thrombocytopenia (Cuker 2010). true scores 3. Must be false if any other-cause flag is true."
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"description": "Acute systemic reaction after intravenous heparin bolus (Cuker 2010). true scores 2; false scores 0."
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"type": "boolean",
"description": "Indwelling intra-arterial device (Cuker 2010 examples: IABP, VAD, ECMO). true scores -2. Mutually exclusive with no_other_cause true."
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"type": "boolean",
"description": "Presence of a chronic thrombocytopenic disorder (Cuker 2010 other causes; select all that apply). true scores -1. Mutually exclusive with no_other_cause true."
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}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.005 USDC on Base to 0x836B…19Ee2. The signed payment is good for 10 minutes.
- Paid to
- 0x836B…19Ee2
- USD Coin contract
- 0x8335…02913
- Payment window
- 10 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
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"score": 14,
"formula": "hep",
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"id": "cuker-2010",
"doi": "10.1111/j.1538-7836.2010.04059.x",
"pmid": "20854372",
"title": "The HIT Expert Probability (HEP) Score: a novel pre-test probability model for heparin-induced thrombocytopenia based on broad expert opinion",
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"authors": "Cuker A, Arepally G, Crowther MA, Rice L, Datko F, Hook K, Propert KJ, Kuter DJ, Ortel TL, Konkle BA, Cines DB"
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{
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"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"score_ge_2": true,
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"formula_expression": "HEP = magnitude (lt_30 -1, 30_to_50 1, gt_50 3) + timing (typical_lt_4 -2, typical_day_4 2, typical_5_10 3, typical_11_14 2, typical_gt_14 -1; rapid_lt_48h 2, rapid_gt_48h -1) + nadir (le_20 -2, gt_20 2) + thrombosis select at most one (none 0; typical_new_ge_4d 3, typical_progression 2; rapid_new 3, rapid_progression 2) + skin_necrosis 3 + systemic_reaction 2 + bleeding -1 + other causes select all (chronic_thrombocytopenia -1, new_drug_thrombocytopenia -2, severe_infection -2, overt_dic -2, intra_arterial_device -2, cpb_96h -1, no_other_cause 3 mutually exclusive with other causes); Cuker 2010; range -16 to 19; cutoff 2 was 100% sensitive / 60% specific vs expert panel; cutoff 5 was 86% sensitive / 88% specific"
}
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},
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"type": "string",
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"type": "boolean",
"description": "Presence of bleeding, petechiae, or extensive bruising (Cuker 2010). true scores -1; false scores 0."
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"description": "Caller-assigned Cuker 2010 magnitude of platelet fall (peak to nadir since heparin exposure). lt_30 (<30%) scores -1; 30_to_50 (30-50%) scores 1; gt_50 (>50%) scores 3. magent does not grade platelet counts."
},
"overt_dic": {
"type": "boolean",
"description": "Overt DIC as assigned by the caller (Cuker 2010: fibrinogen <100 mg/dL and D-dimer >5.0 μg/mL). true scores -2. magent does not assay fibrinogen or D-dimer. Mutually exclusive with no_other_cause true."
},
"thrombosis": {
"type": "string",
"description": "Caller-assigned Cuker 2010 thrombosis (select at most one). none scores 0. Typical-onset: typical_new_ge_4d (new VTE or ATE ≥4 days after heparin) 3; typical_progression (progression of preexisting VTE or ATE while receiving heparin) 2. Rapid-onset: rapid_new (new VTE or ATE after heparin) 3; rapid_progression 2."
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"type": "boolean",
"description": "Skin necrosis at subcutaneous heparin injection sites (Cuker 2010). true scores 3; false scores 0. magent does not examine the skin."
},
"no_other_cause": {
"type": "boolean",
"description": "No other apparent cause of thrombocytopenia (Cuker 2010). true scores 3. Must be false if any other-cause flag is true."
},
"severe_infection": {
"type": "boolean",
"description": "Severe infection as an other cause of thrombocytopenia (Cuker 2010). true scores -2. Mutually exclusive with no_other_cause true."
},
"systemic_reaction": {
"type": "boolean",
"description": "Acute systemic reaction after intravenous heparin bolus (Cuker 2010). true scores 2; false scores 0."
},
"intra_arterial_device": {
"type": "boolean",
"description": "Indwelling intra-arterial device (Cuker 2010 examples: IABP, VAD, ECMO). true scores -2. Mutually exclusive with no_other_cause true."
},
"chronic_thrombocytopenia": {
"type": "boolean",
"description": "Presence of a chronic thrombocytopenic disorder (Cuker 2010 other causes; select all that apply). true scores -1. Mutually exclusive with no_other_cause true."
},
"new_drug_thrombocytopenia": {
"type": "boolean",
"description": "Newly initiated non-heparin medication known to cause thrombocytopenia (Cuker 2010). true scores -2. Mutually exclusive with no_other_cause true."
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}Provenance
- Seen in the source catalog
- 2026-08-31 13:42Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 14:45Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 402
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GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
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Using Roundhouse, look up the x402 service magent and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=magent' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.magentlab.com/api/calc/hep, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.