magent
Canet 2010 ARISCAT simplified risk score (Table 6, β×10 rounded; Mazo 2014 reprints the same points): age <=50=0, 51-80=3, >80=16; SpO2 >=96=0, 91-95=8, <=90=24; respiratory infection last month=17; anemia Hb <=10 flag=11; incision peripheral 0, upper_abdominal 15, intrathoracic 24; duration hours <=2=0, >2 to 3=16, >3=23; emergency=8. Max 123. Low <26, intermediate 26-44, high >=45. Not a diagnosis or cancel-surgery order. magent does not measure SpO2.
Mediaofflineeip155:8453Exactvia cdp
AriscatPpcPreoperativeRespiratoryCalculator
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 12:56Z
—
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/ariscat",
"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/ariscat",
"tags": [
"ariscat",
"ppc",
"preoperative",
"respiratory",
"calculator"
],
"mimeType": "application/json",
"description": "Canet 2010 ARISCAT simplified risk score (Table 6, β×10 rounded; Mazo 2014 reprints the same points): age <=50=0, 51-80=3, >80=16; SpO2 >=96=0, 91-95=8, <=90=24; respiratory infection last month=17; anemia Hb <=10 flag=11; incision peripheral 0, upper_abdominal 15, intrathoracic 24; duration hours <=2=0, >2 to 3=16, >3=23; emergency=8. Max 123. Low <26, intermediate 26-44, high >=45. Not a diagnosis or cancel-surgery order. magent does not measure SpO2.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 50,
"anemia": false,
"incision": "peripheral",
"emergency": false,
"spo2_percent": 97,
"duration_hours": 2,
"respiratory_infection": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"anemia": false,
"formula": "ariscat",
"citation": {
"id": "canet-2010",
"doi": "10.1097/ALN.0b013e3181fc6e0a",
"pmid": "21045639",
"title": "Prediction of Postoperative Pulmonary Complications in a Population-based Surgical Cohort",
"source": "Anesthesiology. 2010;113(6):1338-1350",
"authors": "Canet J, Gallart L, Gomar C, et al"
},
"incision": "peripheral",
"age_years": 50,
"emergency": false,
"max_score": 123,
"risk_band": "low",
"components": [
{
"value": 50,
"factor": "age",
"points": 0,
"present": false
},
{
"value": 97,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"factor": "respiratory_infection",
"points": 0,
"present": false
},
{
"factor": "anemia",
"points": 0,
"present": false
},
{
"value": "peripheral",
"factor": "incision",
"points": 0,
"present": false
},
{
"value": 2,
"factor": "duration_hours",
"points": 0,
"present": false
},
{
"factor": "emergency",
"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.",
"spo2_percent": 97,
"duration_hours": 2,
"formula_expression": "ARISCAT = age (<=50: 0, 51-80: 3, >80: 16) + spo2 (>=96: 0, 91-95: 8, <=90: 24) + respiratory_infection(17) + anemia(11) + incision (peripheral 0, upper_abdominal 15, intrathoracic 24) + duration_hours (<=2: 0, >2 to 3: 16, >3: 23) + emergency(8); max 123; low <26, intermediate 26-44, high >=45",
"respiratory_infection": 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": [
"age",
"spo2_percent",
"respiratory_infection",
"anemia",
"incision",
"duration_hours",
"emergency"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Canet 2010 Table 6: <=50 scores 0; 51-80 scores 3; >80 scores 16. Age 50 scores 0; 51 scores 3; 80 scores 3; 81 scores 16."
},
"anemia": {
"type": "boolean",
"description": "Preoperative anemia (Hb <=10 g/dL) as assigned by the caller (Canet 2010 Table 6). true scores 11. Flag only; do not send a hemoglobin number."
},
"incision": {
"enum": [
"peripheral",
"upper_abdominal",
"intrathoracic"
],
"type": "string",
"description": "Surgical incision as assigned by the caller (Canet 2010 Table 6): peripheral scores 0, upper_abdominal scores 15, intrathoracic scores 24. magent does not classify the procedure from an op note."
},
"emergency": {
"type": "boolean",
"description": "Emergency procedure as assigned by the caller (Canet 2010 Table 6; β 0.768 × 10 rounded). true scores 8. true or false."
},
"spo2_percent": {
"type": "number",
"description": "Preoperative SpO2 percent (50-100) as assigned by the caller. Canet 2010 Table 6: >=96 scores 0; 91-95 scores 8; <=90 scores 24. magent does not measure SpO2."
},
"duration_hours": {
"type": "number",
"description": "Duration of surgery in hours (0.1-24). Canet 2010 Table 6: <=2 scores 0; >2 to 3 scores 16; >3 scores 23. Duration 2.0 scores 0; 2.1 scores 16; 3.0 scores 16; 3.1 scores 23."
},
"respiratory_infection": {
"type": "boolean",
"description": "Respiratory infection in the last month as assigned by the caller (Canet 2010 Table 6). true scores 17. true or false."
}
}
}
},
"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/ariscat",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 50,
"anemia": false,
"incision": "peripheral",
"emergency": false,
"spo2_percent": 97,
"duration_hours": 2,
"respiratory_infection": false
},
{
"age": 50,
"anemia": false,
"incision": "peripheral",
"emergency": false,
"spo2_percent": 97,
"duration_hours": 2,
"respiratory_infection": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/ariscat",
"count": 2,
"items": [
{
"score": 0,
"anemia": false,
"formula": "ariscat",
"citation": {
"id": "canet-2010",
"doi": "10.1097/ALN.0b013e3181fc6e0a",
"pmid": "21045639",
"title": "Prediction of Postoperative Pulmonary Complications in a Population-based Surgical Cohort",
"source": "Anesthesiology. 2010;113(6):1338-1350",
"authors": "Canet J, Gallart L, Gomar C, et al"
},
"incision": "peripheral",
"age_years": 50,
"emergency": false,
"max_score": 123,
"risk_band": "low",
"components": [
{
"value": 50,
"factor": "age",
"points": 0,
"present": false
},
{
"value": 97,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"factor": "respiratory_infection",
"points": 0,
"present": false
},
{
"factor": "anemia",
"points": 0,
"present": false
},
{
"value": "peripheral",
"factor": "incision",
"points": 0,
"present": false
},
{
"value": 2,
"factor": "duration_hours",
"points": 0,
"present": false
},
{
"factor": "emergency",
"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.",
"spo2_percent": 97,
"duration_hours": 2,
"formula_expression": "ARISCAT = age (<=50: 0, 51-80: 3, >80: 16) + spo2 (>=96: 0, 91-95: 8, <=90: 24) + respiratory_infection(17) + anemia(11) + incision (peripheral 0, upper_abdominal 15, intrathoracic 24) + duration_hours (<=2: 0, >2 to 3: 16, >3: 23) + emergency(8); max 123; low <26, intermediate 26-44, high >=45",
"respiratory_infection": false
},
{
"score": 0,
"anemia": false,
"formula": "ariscat",
"citation": {
"id": "canet-2010",
"doi": "10.1097/ALN.0b013e3181fc6e0a",
"pmid": "21045639",
"title": "Prediction of Postoperative Pulmonary Complications in a Population-based Surgical Cohort",
"source": "Anesthesiology. 2010;113(6):1338-1350",
"authors": "Canet J, Gallart L, Gomar C, et al"
},
"incision": "peripheral",
"age_years": 50,
"emergency": false,
"max_score": 123,
"risk_band": "low",
"components": [
{
"value": 50,
"factor": "age",
"points": 0,
"present": false
},
{
"value": 97,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"factor": "respiratory_infection",
"points": 0,
"present": false
},
{
"factor": "anemia",
"points": 0,
"present": false
},
{
"value": "peripheral",
"factor": "incision",
"points": 0,
"present": false
},
{
"value": 2,
"factor": "duration_hours",
"points": 0,
"present": false
},
{
"factor": "emergency",
"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.",
"spo2_percent": 97,
"duration_hours": 2,
"formula_expression": "ARISCAT = age (<=50: 0, 51-80: 3, >80: 16) + spo2 (>=96: 0, 91-95: 8, <=90: 24) + respiratory_infection(17) + anemia(11) + incision (peripheral 0, upper_abdominal 15, intrathoracic 24) + duration_hours (<=2: 0, >2 to 3: 16, >3: 23) + emergency(8); max 123; low <26, intermediate 26-44, high >=45",
"respiratory_infection": 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": [
"age",
"spo2_percent",
"respiratory_infection",
"anemia",
"incision",
"duration_hours",
"emergency"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Canet 2010 Table 6: <=50 scores 0; 51-80 scores 3; >80 scores 16. Age 50 scores 0; 51 scores 3; 80 scores 3; 81 scores 16."
},
"anemia": {
"type": "boolean",
"description": "Preoperative anemia (Hb <=10 g/dL) as assigned by the caller (Canet 2010 Table 6). true scores 11. Flag only; do not send a hemoglobin number."
},
"incision": {
"enum": [
"peripheral",
"upper_abdominal",
"intrathoracic"
],
"type": "string",
"description": "Surgical incision as assigned by the caller (Canet 2010 Table 6): peripheral scores 0, upper_abdominal scores 15, intrathoracic scores 24. magent does not classify the procedure from an op note."
},
"emergency": {
"type": "boolean",
"description": "Emergency procedure as assigned by the caller (Canet 2010 Table 6; β 0.768 × 10 rounded). true scores 8. true or false."
},
"spo2_percent": {
"type": "number",
"description": "Preoperative SpO2 percent (50-100) as assigned by the caller. Canet 2010 Table 6: >=96 scores 0; 91-95 scores 8; <=90 scores 24. magent does not measure SpO2."
},
"duration_hours": {
"type": "number",
"description": "Duration of surgery in hours (0.1-24). Canet 2010 Table 6: <=2 scores 0; >2 to 3 scores 16; >3 scores 23. Duration 2.0 scores 0; 2.1 scores 16; 3.0 scores 16; 3.1 scores 23."
},
"respiratory_infection": {
"type": "boolean",
"description": "Respiratory infection in the last month as assigned by the caller (Canet 2010 Table 6). true scores 17. true or false."
}
}
},
"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
- 2026-08-31 12:56Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 11:46Z
- 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. 14 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/ariscat, 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.