magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
SearchLiveeip155:8453Exactvia cdp
MsoarStrokeNihssNeurologyMortality
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 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 2026-08-31 13:37Z
—
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/msoar",
"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/msoar",
"tags": [
"msoar",
"stroke",
"nihss",
"neurology",
"mortality"
],
"mimeType": "application/json",
"description": "mSOAR (Abdul-Rahim 2016 Stroke): SOAR plus NIHSS for early mortality after acute stroke. Age ≤65 0, 66-85 1, >85 2; infarct 0, hemorrhage 1; OCSP LACS/PACS 0, POCS 1, TACS 2; prestroke mRS 0-2 0, 3-4 1, 5 2; NIHSS 0-4 0, 5-10 1, ≥11 2. Max 9. Table 2 derivation percents for scores 0-1 through 7. Not a care-withdrawal decision. magent does not examine the patient or score NIHSS items.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 18,
"ocsp": "lacs",
"nihss": 0,
"prestroke_mrs": 0,
"stroke_subtype": "infarct"
}
},
"output": {
"type": "json",
"example": {
"ocsp": "lacs",
"nihss": 0,
"score": 0,
"formula": "msoar",
"citation": {
"id": "abdul-rahim-2016",
"doi": "10.1161/STROKEAHA.115.009898",
"pmid": "26578661",
"title": "Derivation and Validation of a Novel Prognostic Scale (Modified–Stroke Subtype, Oxfordshire Community Stroke Project Classification, Age, and Prestroke Modified Rankin) to Predict Early Mortality in Acute Stroke",
"source": "Stroke. 2016;47(1):74-79",
"authors": "Abdul-Rahim AH, Quinn TJ, Alder S, Clark AB, Musgrave SD, Langhorne P, Potter JF, Myint PK"
},
"age_years": 18,
"max_score": 9,
"components": [
{
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"factor": "age",
"points": 0,
"present": false
},
{
"value": "infarct",
"factor": "stroke_subtype",
"points": 0,
"present": false
},
{
"value": "lacs",
"factor": "ocsp",
"points": 0,
"present": false
},
{
"value": 0,
"factor": "prestroke_mrs",
"points": 0,
"present": false
},
{
"value": 0,
"factor": "nihss",
"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.",
"prestroke_mrs": 0,
"stroke_subtype": "infarct",
"formula_expression": "mSOAR = age (≤65 0, 66-85 1, >85 2) + subtype (infarct 0, hemorrhage 1) + OCSP (LACS/PACS 0, POCS 1, TACS 2) + prestroke mRS (0-2 0, 3-4 1, 5 2) + NIHSS (0-4 0, 5-10 1, ≥11 2; 11-20 and ≥21 both 2); Abdul-Rahim 2016 Table 1 bands and Suppl Table I NIHSS integers; max 9; Table 2 derivation early mortality 1.0/1.5/6.5/9.2/19.5/26.2/49.2% for scores 0-1/2/3/4/5/6/7",
"early_mortality_percent": 1
}
},
"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",
"stroke_subtype",
"ocsp",
"prestroke_mrs",
"nihss"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Abdul-Rahim 2016 Table 1: ≤65 scores 0; 66-85 scores 1; >85 scores 2. Age 85 is the 66-85 band."
},
"ocsp": {
"enum": [
"lacs",
"pacs",
"pocs",
"tacs"
],
"type": "string",
"description": "Caller-assigned Oxfordshire Community Stroke Project class (Abdul-Rahim 2016 Table 1). lacs or pacs scores 0; pocs scores 1; tacs scores 2. Case-insensitive. magent does not examine the patient."
},
"nihss": {
"type": "integer",
"description": "Caller-assigned NIH Stroke Scale total (integer 0-42), not an item exam. Abdul-Rahim 2016 Suppl Table I / Table 1: 0-4 scores 0; 5-10 scores 1; 11-20 and ≥21 both score 2. magent does not compute NIHSS or examine the patient."
},
"prestroke_mrs": {
"type": "integer",
"description": "Caller-assigned prestroke modified Rankin grade 0-5. SOAR weights used by mSOAR: 0-2 scores 0; 3-4 scores 1; 5 scores 2. Table 1 lists cohort counts as 0-1 / 2-3 / 4-5, not those integer weights. magent does not interview the patient."
},
"stroke_subtype": {
"enum": [
"infarct",
"hemorrhage"
],
"type": "string",
"description": "Caller-assigned stroke subtype (Abdul-Rahim 2016 Methods / Table 1). infarct (ischemic infarction) scores 0; hemorrhage scores 1. Case-insensitive. magent does not read imaging."
}
}
}
},
"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/msoar",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 18,
"ocsp": "lacs",
"nihss": 0,
"prestroke_mrs": 0,
"stroke_subtype": "infarct"
},
{
"age": 18,
"ocsp": "lacs",
"nihss": 0,
"prestroke_mrs": 0,
"stroke_subtype": "infarct"
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/msoar",
"count": 2,
"items": [
{
"ocsp": "lacs",
"nihss": 0,
"score": 0,
"formula": "msoar",
"citation": {
"id": "abdul-rahim-2016",
"doi": "10.1161/STROKEAHA.115.009898",
"pmid": "26578661",
"title": "Derivation and Validation of a Novel Prognostic Scale (Modified–Stroke Subtype, Oxfordshire Community Stroke Project Classification, Age, and Prestroke Modified Rankin) to Predict Early Mortality in Acute Stroke",
"source": "Stroke. 2016;47(1):74-79",
"authors": "Abdul-Rahim AH, Quinn TJ, Alder S, Clark AB, Musgrave SD, Langhorne P, Potter JF, Myint PK"
},
"age_years": 18,
"max_score": 9,
"components": [
{
"value": 18,
"factor": "age",
"points": 0,
"present": false
},
{
"value": "infarct",
"factor": "stroke_subtype",
"points": 0,
"present": false
},
{
"value": "lacs",
"factor": "ocsp",
"points": 0,
"present": false
},
{
"value": 0,
"factor": "prestroke_mrs",
"points": 0,
"present": false
},
{
"value": 0,
"factor": "nihss",
"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.",
"prestroke_mrs": 0,
"stroke_subtype": "infarct",
"formula_expression": "mSOAR = age (≤65 0, 66-85 1, >85 2) + subtype (infarct 0, hemorrhage 1) + OCSP (LACS/PACS 0, POCS 1, TACS 2) + prestroke mRS (0-2 0, 3-4 1, 5 2) + NIHSS (0-4 0, 5-10 1, ≥11 2; 11-20 and ≥21 both 2); Abdul-Rahim 2016 Table 1 bands and Suppl Table I NIHSS integers; max 9; Table 2 derivation early mortality 1.0/1.5/6.5/9.2/19.5/26.2/49.2% for scores 0-1/2/3/4/5/6/7",
"early_mortality_percent": 1
},
{
"ocsp": "lacs",
"nihss": 0,
"score": 0,
"formula": "msoar",
"citation": {
"id": "abdul-rahim-2016",
"doi": "10.1161/STROKEAHA.115.009898",
"pmid": "26578661",
"title": "Derivation and Validation of a Novel Prognostic Scale (Modified–Stroke Subtype, Oxfordshire Community Stroke Project Classification, Age, and Prestroke Modified Rankin) to Predict Early Mortality in Acute Stroke",
"source": "Stroke. 2016;47(1):74-79",
"authors": "Abdul-Rahim AH, Quinn TJ, Alder S, Clark AB, Musgrave SD, Langhorne P, Potter JF, Myint PK"
},
"age_years": 18,
"max_score": 9,
"components": [
{
"value": 18,
"factor": "age",
"points": 0,
"present": false
},
{
"value": "infarct",
"factor": "stroke_subtype",
"points": 0,
"present": false
},
{
"value": "lacs",
"factor": "ocsp",
"points": 0,
"present": false
},
{
"value": 0,
"factor": "prestroke_mrs",
"points": 0,
"present": false
},
{
"value": 0,
"factor": "nihss",
"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.",
"prestroke_mrs": 0,
"stroke_subtype": "infarct",
"formula_expression": "mSOAR = age (≤65 0, 66-85 1, >85 2) + subtype (infarct 0, hemorrhage 1) + OCSP (LACS/PACS 0, POCS 1, TACS 2) + prestroke mRS (0-2 0, 3-4 1, 5 2) + NIHSS (0-4 0, 5-10 1, ≥11 2; 11-20 and ≥21 both 2); Abdul-Rahim 2016 Table 1 bands and Suppl Table I NIHSS integers; max 9; Table 2 derivation early mortality 1.0/1.5/6.5/9.2/19.5/26.2/49.2% for scores 0-1/2/3/4/5/6/7",
"early_mortality_percent": 1
}
]
}
},
"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",
"stroke_subtype",
"ocsp",
"prestroke_mrs",
"nihss"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Abdul-Rahim 2016 Table 1: ≤65 scores 0; 66-85 scores 1; >85 scores 2. Age 85 is the 66-85 band."
},
"ocsp": {
"enum": [
"lacs",
"pacs",
"pocs",
"tacs"
],
"type": "string",
"description": "Caller-assigned Oxfordshire Community Stroke Project class (Abdul-Rahim 2016 Table 1). lacs or pacs scores 0; pocs scores 1; tacs scores 2. Case-insensitive. magent does not examine the patient."
},
"nihss": {
"type": "integer",
"description": "Caller-assigned NIH Stroke Scale total (integer 0-42), not an item exam. Abdul-Rahim 2016 Suppl Table I / Table 1: 0-4 scores 0; 5-10 scores 1; 11-20 and ≥21 both score 2. magent does not compute NIHSS or examine the patient."
},
"prestroke_mrs": {
"type": "integer",
"description": "Caller-assigned prestroke modified Rankin grade 0-5. SOAR weights used by mSOAR: 0-2 scores 0; 3-4 scores 1; 5 scores 2. Table 1 lists cohort counts as 0-1 / 2-3 / 4-5, not those integer weights. magent does not interview the patient."
},
"stroke_subtype": {
"enum": [
"infarct",
"hemorrhage"
],
"type": "string",
"description": "Caller-assigned stroke subtype (Abdul-Rahim 2016 Methods / Table 1). infarct (ischemic infarction) scores 0; hemorrhage scores 1. Case-insensitive. magent does not read imaging."
}
}
},
"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 13:37Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 17:45Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 402
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. 10 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/msoar, 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.