magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Mediaofflineeip155:8453Exactvia cdp
Pompe-cPeCancerVteMortality
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 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 2026-09-02 04:40Z
—
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.
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/pompe_c",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
],
"resource": {
"url": "https://api.magentlab.com/api/calc/pompe_c",
"tags": [
"pompe-c",
"pe",
"cancer",
"vte",
"mortality"
],
"mimeType": "application/json",
"description": "Kline 2012 POMPE-C 30-day mortality probability for active cancer plus acute PE. Logistic from DNR, respiratory distress, unilateral limb swelling, altered mental status, heart rate >99, respiratory rate, room-air SpO2, and weight in pounds (intercept 3.718). Bands: low <=5%, high >50%, else intermediate. Not a PE or cancer diagnosis, not integer points, not a dose.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"dnr": false,
"weight_lb": 170,
"spo2_percent": 97,
"heart_rate_gt_99": false,
"respiratory_rate": 18,
"respiratory_distress": false,
"altered_mental_status": false,
"unilateral_leg_swelling": false
}
},
"output": {
"type": "json",
"example": {
"dnr": false,
"logit": -3.641,
"formula": "pompe_c",
"citation": {
"id": "kline-2012",
"doi": "10.1016/j.thromres.2012.03.015",
"pmid": "22475313",
"title": "Derivation and validation of a multivariate model to predict mortality from pulmonary embolism with cancer: The POMPE-C tool",
"source": "Thromb Res. 2012;129(5):e194-e199",
"authors": "Kline JA, Roy PM, Than MP, Hernandez J, Courtney DM, Jones AE, Penaloza A, Pollack CV Jr"
},
"risk_band": "low",
"weight_lb": 170,
"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.",
"spo2_percent": 97,
"mortality_pct": 2.6,
"heart_rate_gt_99": false,
"respiratory_rate": 18,
"formula_expression": "mortality_pct = 100 * (1 - 1 / (1 + exp(3.718 + 1.551*dnr + 0.800*respiratory_distress + 0.734*unilateral_leg_swelling + 1.473*altered_mental_status + 1.027*heart_rate_gt_99 + 0.044*respiratory_rate + (-0.063)*spo2_percent + (-0.012)*weight_lb))); Kline 2012 web-prototype logistic (intercept 3.718); heart_rate_gt_99 coefficient 1.027 from Table 2 (OR 2.8) because the manuscript prototype line-wraps as + HR; flags 1 if true else 0; low if mortality_pct <= 5, high if > 50, else intermediate; 30-day all-cause mortality probability for active cancer + acute PE; not integer points",
"respiratory_distress": false,
"altered_mental_status": false,
"unilateral_leg_swelling": false
}
},
"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": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"dnr",
"respiratory_distress",
"unilateral_leg_swelling",
"altered_mental_status",
"heart_rate_gt_99",
"respiratory_rate",
"spo2_percent",
"weight_lb"
],
"properties": {
"dnr": {
"type": "boolean",
"description": "Do-not-resuscitate status as assigned by the caller (Kline 2012: new or existing verbal or written desire not to be resuscitated). true or false. magent does not read an advance directive."
},
"weight_lb": {
"type": "number",
"description": "Body weight in pounds (2-1100), measured or by patient estimate as in Kline 2012. Pounds enter the logistic directly. magent does not convert from kilograms."
},
"spo2_percent": {
"type": "number",
"description": "Most recent pulse oximetry on room air, percent (50-100). Continuous predictor in the Kline 2012 prototype logistic. magent does not measure saturation."
},
"heart_rate_gt_99": {
"type": "boolean",
"description": "Heart rate documented over 99 beats/min in the previous six hours, as assigned by the caller. true or false. magent does not take a pulse."
},
"respiratory_rate": {
"type": "integer",
"description": "Highest documented respiratory rate in breaths/min within the previous six hours (integer 4-80). Continuous predictor in the Kline 2012 prototype logistic."
},
"respiratory_distress": {
"type": "boolean",
"description": "Respiratory distress as assigned by the caller (Kline 2012: obvious anxiety from dyspnea or increased work of breathing). true or false. magent does not examine the patient."
},
"altered_mental_status": {
"type": "boolean",
"description": "Altered mental status as assigned by the caller (Kline 2012: acute impairment in consciousness, new disorientation, delirium, or confusion). true or false. magent does not examine the patient."
},
"unilateral_leg_swelling": {
"type": "boolean",
"description": "Unilateral limb swelling as assigned by the caller (Kline 2012: new noticeable arm or leg asymmetry). true or false. magent does not examine the limbs."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}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
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/pompe_c",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"dnr": false,
"weight_lb": 170,
"spo2_percent": 97,
"heart_rate_gt_99": false,
"respiratory_rate": 18,
"respiratory_distress": false,
"altered_mental_status": false,
"unilateral_leg_swelling": false
},
{
"dnr": false,
"weight_lb": 170,
"spo2_percent": 97,
"heart_rate_gt_99": false,
"respiratory_rate": 18,
"respiratory_distress": false,
"altered_mental_status": false,
"unilateral_leg_swelling": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/pompe_c",
"count": 2,
"items": [
{
"dnr": false,
"logit": -3.641,
"formula": "pompe_c",
"citation": {
"id": "kline-2012",
"doi": "10.1016/j.thromres.2012.03.015",
"pmid": "22475313",
"title": "Derivation and validation of a multivariate model to predict mortality from pulmonary embolism with cancer: The POMPE-C tool",
"source": "Thromb Res. 2012;129(5):e194-e199",
"authors": "Kline JA, Roy PM, Than MP, Hernandez J, Courtney DM, Jones AE, Penaloza A, Pollack CV Jr"
},
"risk_band": "low",
"weight_lb": 170,
"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.",
"spo2_percent": 97,
"mortality_pct": 2.6,
"heart_rate_gt_99": false,
"respiratory_rate": 18,
"formula_expression": "mortality_pct = 100 * (1 - 1 / (1 + exp(3.718 + 1.551*dnr + 0.800*respiratory_distress + 0.734*unilateral_leg_swelling + 1.473*altered_mental_status + 1.027*heart_rate_gt_99 + 0.044*respiratory_rate + (-0.063)*spo2_percent + (-0.012)*weight_lb))); Kline 2012 web-prototype logistic (intercept 3.718); heart_rate_gt_99 coefficient 1.027 from Table 2 (OR 2.8) because the manuscript prototype line-wraps as + HR; flags 1 if true else 0; low if mortality_pct <= 5, high if > 50, else intermediate; 30-day all-cause mortality probability for active cancer + acute PE; not integer points",
"respiratory_distress": false,
"altered_mental_status": false,
"unilateral_leg_swelling": false
},
{
"dnr": false,
"logit": -3.641,
"formula": "pompe_c",
"citation": {
"id": "kline-2012",
"doi": "10.1016/j.thromres.2012.03.015",
"pmid": "22475313",
"title": "Derivation and validation of a multivariate model to predict mortality from pulmonary embolism with cancer: The POMPE-C tool",
"source": "Thromb Res. 2012;129(5):e194-e199",
"authors": "Kline JA, Roy PM, Than MP, Hernandez J, Courtney DM, Jones AE, Penaloza A, Pollack CV Jr"
},
"risk_band": "low",
"weight_lb": 170,
"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.",
"spo2_percent": 97,
"mortality_pct": 2.6,
"heart_rate_gt_99": false,
"respiratory_rate": 18,
"formula_expression": "mortality_pct = 100 * (1 - 1 / (1 + exp(3.718 + 1.551*dnr + 0.800*respiratory_distress + 0.734*unilateral_leg_swelling + 1.473*altered_mental_status + 1.027*heart_rate_gt_99 + 0.044*respiratory_rate + (-0.063)*spo2_percent + (-0.012)*weight_lb))); Kline 2012 web-prototype logistic (intercept 3.718); heart_rate_gt_99 coefficient 1.027 from Table 2 (OR 2.8) because the manuscript prototype line-wraps as + HR; flags 1 if true else 0; low if mortality_pct <= 5, high if > 50, else intermediate; 30-day all-cause mortality probability for active cancer + acute PE; not integer points",
"respiratory_distress": false,
"altered_mental_status": false,
"unilateral_leg_swelling": false
}
]
}
},
"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": [
"dnr",
"respiratory_distress",
"unilateral_leg_swelling",
"altered_mental_status",
"heart_rate_gt_99",
"respiratory_rate",
"spo2_percent",
"weight_lb"
],
"properties": {
"dnr": {
"type": "boolean",
"description": "Do-not-resuscitate status as assigned by the caller (Kline 2012: new or existing verbal or written desire not to be resuscitated). true or false. magent does not read an advance directive."
},
"weight_lb": {
"type": "number",
"description": "Body weight in pounds (2-1100), measured or by patient estimate as in Kline 2012. Pounds enter the logistic directly. magent does not convert from kilograms."
},
"spo2_percent": {
"type": "number",
"description": "Most recent pulse oximetry on room air, percent (50-100). Continuous predictor in the Kline 2012 prototype logistic. magent does not measure saturation."
},
"heart_rate_gt_99": {
"type": "boolean",
"description": "Heart rate documented over 99 beats/min in the previous six hours, as assigned by the caller. true or false. magent does not take a pulse."
},
"respiratory_rate": {
"type": "integer",
"description": "Highest documented respiratory rate in breaths/min within the previous six hours (integer 4-80). Continuous predictor in the Kline 2012 prototype logistic."
},
"respiratory_distress": {
"type": "boolean",
"description": "Respiratory distress as assigned by the caller (Kline 2012: obvious anxiety from dyspnea or increased work of breathing). true or false. magent does not examine the patient."
},
"altered_mental_status": {
"type": "boolean",
"description": "Altered mental status as assigned by the caller (Kline 2012: acute impairment in consciousness, new disorientation, delirium, or confusion). true or false. magent does not examine the patient."
},
"unilateral_leg_swelling": {
"type": "boolean",
"description": "Unilateral limb swelling as assigned by the caller (Kline 2012: new noticeable arm or leg asymmetry). true or false. magent does not examine the limbs."
}
}
},
"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
- 2026-09-02 04:40Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 20:15Z
- 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. 8 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/pompe_c, 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.