magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Searchofflineeip155:8453Exactvia cdp
Hfa-icosMyelomaCardio-oncologyHemodynamicsCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 7 snapshots so far.
$13.75
Verified settled volume
2,750 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-03 00:13Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x836Be278f1739fB4308091cD1852F7971Bc19Ee2The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
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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.
0.005USDC≈ $0.005 USD
on Base · exact scheme
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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{
"tier": "medium_1",
"factor": "current_or_significant_smoker",
"points": 0,
"present": false
},
{
"tier": "medium_1",
"factor": "obesity",
"points": 0,
"present": false
},
{
"tier": "none",
"value": 50,
"factor": "age_years",
"points": 0,
"present": false
},
{
"tier": "none",
"value": 60,
"factor": "lvef_percent",
"points": 0,
"present": false
}
],
"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.",
"risk_level": "low",
"lvef_percent": 60,
"medium_points": 0,
"formula_expression": "very_high if any Very high factor (heart_failure_or_cardiomyopathy, prior_proteasome_inhibitor_cardiotoxicity, venous_thrombosis, cardiac_amyloidosis, arterial_vascular_disease); else high if any High factor (prior_immunomodulatory_drug_cv_toxicity, lvef_percent<50, elevated_bnp, age_years>=75, prior_anthracycline) OR medium_points>=5; else medium if medium_points in 2..4; else low (no factors or one Medium 1). medium_points sums Medium 1 (=1: left_ventricular_hypertrophy, age_years 65-74, hypertension, diabetes, hyperlipidemia, ckd, family_history_thrombophilia, prior_thoracic_spine_radiotherapy, high_dose_dexamethasone, current_or_significant_smoker, obesity) and Medium 2 (=2: lvef_percent 50-54, arrhythmia, elevated_troponin) only. Age and LVEF use the highest matching printed band. Lyon 2020 HFA-ICOS multiple-myeloma therapy table. cardiotoxicity_guide is that paper's expert-opinion guide: low <2%, medium 2-9%, high 10-19%, very high >=20%",
"cardiotoxicity_guide": "<2%"
}
]
}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"age_years",
"lvef_percent",
"heart_failure_or_cardiomyopathy",
"prior_proteasome_inhibitor_cardiotoxicity",
"venous_thrombosis",
"cardiac_amyloidosis",
"arterial_vascular_disease",
"prior_immunomodulatory_drug_cv_toxicity",
"elevated_bnp",
"prior_anthracycline",
"arrhythmia",
"elevated_troponin",
"left_ventricular_hypertrophy",
"hypertension",
"diabetes",
"hyperlipidemia",
"ckd",
"family_history_thrombophilia",
"prior_thoracic_spine_radiotherapy",
"high_dose_dexamethasone",
"current_or_significant_smoker",
"obesity"
],
"properties": {
"ckd": {
"type": "boolean",
"description": "Chronic kidney disease as assigned by the caller (Lyon 2020 Medium 1). true or false. magent does not compute eGFR."
},
"obesity": {
"type": "boolean",
"description": "Obesity (BMI >30 kg/m2) as assigned by the caller (Lyon 2020 Medium 1). true or false. magent does not compute BMI."
},
"diabetes": {
"type": "boolean",
"description": "Diabetes mellitus as assigned by the caller (Lyon 2020 Medium 1). true or false. magent does not assay HbA1c."
},
"age_years": {
"type": "integer",
"description": "Age in years (18-100, integer). Lyon 2020 myeloma-therapy table: >=75 High; 65-74 Medium 1; <65 no age factor. Highest matching band only."
},
"arrhythmia": {
"type": "boolean",
"description": "Arrhythmia (Lyon 2020 Medium 2). true or false as assigned by the caller. magent does not read a rhythm strip."
},
"elevated_bnp": {
"type": "boolean",
"description": "Baseline BNP or NT-proBNP above the local laboratory ULN as assigned by the caller (Lyon 2020 High). true or false. magent does not assay natriuretic peptides."
},
"hypertension": {
"type": "boolean",
"description": "Hypertension as assigned by the caller (Lyon 2020 Medium 1). true or false. magent does not measure blood pressure."
},
"lvef_percent": {
"type": "integer",
"description": "LVEF percent (10-80, integer). Lyon 2020: <50 High; 50-54 Medium 2; >=55 no LVEF factor. Highest matching printed band only. magent does not read imaging."
},
"hyperlipidemia": {
"type": "boolean",
"description": "Hyperlipidemia as assigned by the caller (Lyon 2020 Medium 1). true or false. magent does not assay lipids."
},
"elevated_troponin": {
"type": "boolean",
"description": "Baseline troponin above the local laboratory ULN as assigned by the caller (Lyon 2020 Medium 2). true or false. magent does not assay troponin."
},
"venous_thrombosis": {
"type": "boolean",
"description": "Venous thrombosis (DVT or PE) (Lyon 2020 Very high). true or false as assigned by the caller. magent does not diagnose thrombosis."
},
"cardiac_amyloidosis": {
"type": "boolean",
"description": "Cardiac amyloidosis (Lyon 2020 Very high). true or false as assigned by the caller. magent does not read imaging or biopsy."
},
"prior_anthracycline": {
"type": "boolean",
"description": "Prior anthracycline exposure (Lyon 2020 High). true or false as assigned by the caller."
},
"high_dose_dexamethasone": {
"type": "boolean",
"description": "High-dose dexamethasone (>160 mg/month) as assigned by the caller (Lyon 2020 Medium 1). true or false. magent does not compute a steroid dose."
},
"arterial_vascular_disease": {
"type": "boolean",
"description": "Arterial vascular disease (IHD, PCI, CABG, stable angina, TIA, stroke, or PVD) as one caller bool (Lyon 2020 Very high). true or false. magent does not diagnose vascular disease."
},
"family_history_thrombophilia": {
"type": "boolean",
"description": "Family history of thrombophilia (Lyon 2020 Medium 1). true or false as assigned by the caller. magent does not take a family history."
},
"left_ventricular_hypertrophy": {
"type": "boolean",
"description": "Left-ventricular hypertrophy (Lyon 2020 Medium 1). true or false as assigned by the caller. magent does not read imaging."
},
"current_or_significant_smoker": {
"type": "boolean",
"description": "Current smoker or significant smoking history (Lyon 2020 Medium 1). true or false as assigned by the caller."
},
"heart_failure_or_cardiomyopathy": {
"type": "boolean",
"description": "Heart failure or cardiomyopathy (Lyon 2020 Very high). true or false as assigned by the caller. magent does not examine the patient or read imaging."
},
"prior_thoracic_spine_radiotherapy": {
"type": "boolean",
"description": "Prior thoracic-spine radiotherapy (Lyon 2020 Medium 1). true or false as assigned by the caller."
},
"prior_immunomodulatory_drug_cv_toxicity": {
"type": "boolean",
"description": "Prior immunomodulatory-drug cardiovascular toxicity (Lyon 2020 High). true or false as assigned by the caller."
},
"prior_proteasome_inhibitor_cardiotoxicity": {
"type": "boolean",
"description": "Prior proteasome-inhibitor cardiotoxicity (Lyon 2020 Very high). true or false as assigned by the caller."
}
}
},
"maxItems": 25,
"minItems": 1
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"const": "POST"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-03 00:13Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 16:46Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 0
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 7 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
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/hfa_icos_myeloma, 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.