magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
PriestCovid-19SeverityNews2-scale-1Calculator
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 2026-09-01 23:29Z
—
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": [
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"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
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"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/priest",
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"tags": [
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"severity",
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"calculator"
],
"mimeType": "application/json",
"description": "Goodacre 2021 PRIEST: NEWS2 Chart 1 Scale 1 vitals (RR, SpO2 Scale 1 only, oxygen +2, temperature, SBP, HR) + alertness (alert 0; confused_or_not_alert 3) + sex (male 1) + age (16–49→0, 50–65→2, 66–80→3, >80→4) + performance 0–4. Max 29. low_adverse_outcome_risk iff score ≤4. Not NEWS2, not 4C, not an admission order.",
"serviceName": "magent"
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"extensions": {
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"temperature_c": 37,
"heart_rate_bpm": 70,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"performance_status": "unrestricted",
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}
},
"output": {
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"example": {
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"score": 4,
"formula": "priest",
"citation": {
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"title": "Derivation and validation of a clinical severity score for acutely ill adults with suspected COVID-19: The PRIEST observational cohort study",
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{
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{
"value": "unrestricted",
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"points": 0,
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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.",
"spo2_percent": 98,
"temperature_c": 37,
"heart_rate_bpm": 70,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"formula_expression": "PRIEST = rr_points + spo2_scale1_points + oxygen_points + temp_points + sbp_points + hr_points + alertness_points + sex_points + age_points + performance_points; NEWS2 Chart 1 Scale 1 vitals (not Scale 2) + age + sex + performance; Goodacre 2021 Fig 2; max 29; low_adverse_outcome_risk iff score ≤4",
"performance_status": "unrestricted",
"supplemental_oxygen": false,
"low_adverse_outcome_risk": true
}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
},
"schema": {
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"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
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"properties": {
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"required": [
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"properties": {
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"const": "http"
},
"method": {
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"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
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"additionalProperties": {
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}
},
"queryParams": {
"type": "object",
"required": [
"age_years",
"sex",
"respiratory_rate",
"spo2_percent",
"heart_rate_bpm",
"systolic_mm_hg",
"temperature_c",
"alertness",
"supplemental_oxygen",
"performance_status"
],
"properties": {
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex (female or male). Goodacre 2021 PRIEST: female → 0; male → 1."
},
"age_years": {
"type": "integer",
"description": "Age in years (integer 16-120). Goodacre 2021 PRIEST: 16-49 → 0; 50-65 → 2; 66-80 → 3; >80 → 4. Age 80 scores 3; age 81 scores 4."
},
"alertness": {
"enum": [
"alert",
"confused_or_not_alert"
],
"type": "string",
"description": "Caller-assigned alertness (alert or confused_or_not_alert). Goodacre 2021 PRIEST: alert → 0; confused_or_not_alert → 3. Not full ACVPU and not GCS."
},
"spo2_percent": {
"type": "number",
"description": "Oxygen saturation percent (50-100). NEWS2 Chart 1 Scale 1 only: >95 → 0; 94-95 → 1; 92-93 → 2; <92 → 3. magent does not implement NEWS2 SpO2 Scale 2."
},
"temperature_c": {
"type": "number",
"description": "Temperature in °C (30.0-45.0). NEWS2 Chart 1: 36.1-38.0 → 0; 35.1-36.0 or 38.1-39.0 → 1; >39.0 → 2; <35.1 → 3. magent does not convert Fahrenheit."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats/min (integer 30-220). NEWS2 Chart 1: 51-90 → 0; 41-50 or 91-110 → 1; 111-130 → 2; <41 or >130 → 3."
},
"systolic_mm_hg": {
"type": "integer",
"description": "Systolic blood pressure in mm Hg (integer 0-300). NEWS2 Chart 1: 111-219 → 0; 101-110 → 1; 91-100 → 2; <91 or >219 → 3."
},
"respiratory_rate": {
"type": "integer",
"description": "Respiratory rate in breaths/min (integer 0-80). NEWS2 Chart 1 Scale 1 as used in PRIEST: 12-20 → 0; 9-11 → 1; 21-24 → 2; <9 or >24 → 3."
},
"performance_status": {
"enum": [
"unrestricted",
"limited_strenuous",
"limited_activity",
"limited_self_care",
"bed_chair_bound"
],
"type": "string",
"description": "Caller-assigned performance (unrestricted, limited_strenuous, limited_activity, limited_self_care, or bed_chair_bound). Goodacre 2021: unrestricted → 0; limited strenuous activity, can do light activity → 1; limited activity, can self-care → 2; limited self-care → 3; bed/chair bound, no self-care → 4."
},
"supplemental_oxygen": {
"type": "boolean",
"description": "Any supplemental oxygen as assigned by the caller (true or false). NEWS2 Chart 1 inspired oxygen: air/false → 0; supplemental/true → 2."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
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],
"properties": {
"type": {
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},
"example": {
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}
}
}
}
}
}
},
"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
[
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"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/priest",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
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"age_years": 70,
"alertness": "alert",
"spo2_percent": 98,
"temperature_c": 37,
"heart_rate_bpm": 70,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"performance_status": "unrestricted",
"supplemental_oxygen": false
},
{
"sex": "male",
"age_years": 70,
"alertness": "alert",
"spo2_percent": 98,
"temperature_c": 37,
"heart_rate_bpm": 70,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"performance_status": "unrestricted",
"supplemental_oxygen": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/priest",
"count": 2,
"items": [
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"sex": "male",
"score": 4,
"formula": "priest",
"citation": {
"id": "goodacre-2021",
"doi": "10.1371/journal.pone.0245840",
"pmid": "33481930",
"title": "Derivation and validation of a clinical severity score for acutely ill adults with suspected COVID-19: The PRIEST observational cohort study",
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"performance_status": "unrestricted",
"supplemental_oxygen": false,
"low_adverse_outcome_risk": true
},
{
"sex": "male",
"score": 4,
"formula": "priest",
"citation": {
"id": "goodacre-2021",
"doi": "10.1371/journal.pone.0245840",
"pmid": "33481930",
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},
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},
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},
{
"value": 98,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"value": 70,
"factor": "heart_rate_bpm",
"points": 0,
"present": false
},
{
"value": 120,
"factor": "systolic_mm_hg",
"points": 0,
"present": false
},
{
"value": 37,
"factor": "temperature_c",
"points": 0,
"present": false
},
{
"value": "alert",
"factor": "alertness",
"points": 0,
"present": false
},
{
"value": false,
"factor": "supplemental_oxygen",
"points": 0,
"present": false
},
{
"value": "unrestricted",
"factor": "performance_status",
"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": 98,
"temperature_c": 37,
"heart_rate_bpm": 70,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"formula_expression": "PRIEST = rr_points + spo2_scale1_points + oxygen_points + temp_points + sbp_points + hr_points + alertness_points + sex_points + age_points + performance_points; NEWS2 Chart 1 Scale 1 vitals (not Scale 2) + age + sex + performance; Goodacre 2021 Fig 2; max 29; low_adverse_outcome_risk iff score ≤4",
"performance_status": "unrestricted",
"supplemental_oxygen": false,
"low_adverse_outcome_risk": true
}
]
}
},
"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",
"sex",
"respiratory_rate",
"spo2_percent",
"heart_rate_bpm",
"systolic_mm_hg",
"temperature_c",
"alertness",
"supplemental_oxygen",
"performance_status"
],
"properties": {
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex (female or male). Goodacre 2021 PRIEST: female → 0; male → 1."
},
"age_years": {
"type": "integer",
"description": "Age in years (integer 16-120). Goodacre 2021 PRIEST: 16-49 → 0; 50-65 → 2; 66-80 → 3; >80 → 4. Age 80 scores 3; age 81 scores 4."
},
"alertness": {
"enum": [
"alert",
"confused_or_not_alert"
],
"type": "string",
"description": "Caller-assigned alertness (alert or confused_or_not_alert). Goodacre 2021 PRIEST: alert → 0; confused_or_not_alert → 3. Not full ACVPU and not GCS."
},
"spo2_percent": {
"type": "number",
"description": "Oxygen saturation percent (50-100). NEWS2 Chart 1 Scale 1 only: >95 → 0; 94-95 → 1; 92-93 → 2; <92 → 3. magent does not implement NEWS2 SpO2 Scale 2."
},
"temperature_c": {
"type": "number",
"description": "Temperature in °C (30.0-45.0). NEWS2 Chart 1: 36.1-38.0 → 0; 35.1-36.0 or 38.1-39.0 → 1; >39.0 → 2; <35.1 → 3. magent does not convert Fahrenheit."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats/min (integer 30-220). NEWS2 Chart 1: 51-90 → 0; 41-50 or 91-110 → 1; 111-130 → 2; <41 or >130 → 3."
},
"systolic_mm_hg": {
"type": "integer",
"description": "Systolic blood pressure in mm Hg (integer 0-300). NEWS2 Chart 1: 111-219 → 0; 101-110 → 1; 91-100 → 2; <91 or >219 → 3."
},
"respiratory_rate": {
"type": "integer",
"description": "Respiratory rate in breaths/min (integer 0-80). NEWS2 Chart 1 Scale 1 as used in PRIEST: 12-20 → 0; 9-11 → 1; 21-24 → 2; <9 or >24 → 3."
},
"performance_status": {
"enum": [
"unrestricted",
"limited_strenuous",
"limited_activity",
"limited_self_care",
"bed_chair_bound"
],
"type": "string",
"description": "Caller-assigned performance (unrestricted, limited_strenuous, limited_activity, limited_self_care, or bed_chair_bound). Goodacre 2021: unrestricted → 0; limited strenuous activity, can do light activity → 1; limited activity, can self-care → 2; limited self-care → 3; bed/chair bound, no self-care → 4."
},
"supplemental_oxygen": {
"type": "boolean",
"description": "Any supplemental oxygen as assigned by the caller (true or false). NEWS2 Chart 1 inspired oxygen: air/false → 0; supplemental/true → 2."
}
}
},
"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
- 2026-09-01 23:29Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 14:46Z
- 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. 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/priest, 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.