magent
Charles 2008 SMART-COP for intensive respiratory or vasopressor support in community-acquired pneumonia: SBP <90 (2), multilobar CXR (1), albumin <3.5 g/dL (1), age-adjusted RR (1), HR >=125 (1), new confusion (1), age-adjusted low oxygen (2), arterial pH <7.35 (2; omitted pH scores 0). Max 11. IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high. Not a site-of-care protocol. Albumin g/dL or g/L. Exactly one of PaO2, SpO2, or P/F.
SearchLiveeip155:8453Exactvia cdp
Smart-copPneumoniaCapIrvsCalculator
Calls · 30d
3→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$13.75
Verified settled volume
2,750 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 13:14Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x836Be278f1739fB4308091cD1852F7971Bc19Ee2The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
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],
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
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}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
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"properties": {
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"required": [
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"properties": {
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},
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},
"queryParams": {
"type": "object",
"required": [
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"systolic_mm_hg",
"multilobar_cxr",
"respiratory_rate",
"heart_rate_bpm",
"confusion"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Age ≤50 uses RR ≥25, PaO2 <70, SpO2 ≤93%, P/F <333. Age >50 uses RR ≥30, PaO2 <60, SpO2 ≤90%, P/F <250."
},
"pf_ratio": {
"type": "number",
"description": "PaO2/FiO2 ratio (20-800). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: <333 scores 2. Age >50: <250 scores 2."
},
"confusion": {
"type": "boolean",
"description": "New or acute confusion as assigned by the caller (Charles 2008 C). true or false. 1 point if true. magent does not assess mental status."
},
"pao2_mm_hg": {
"type": "number",
"description": "Arterial PaO2 in mm Hg (20-700). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: <70 scores 2. Age >50: <60 scores 2."
},
"albumin_g_l": {
"type": "number",
"description": "Albumin in g/L (10-60). Converted as g/dL = g/L / 10. Provide this or albumin_g_dl, not both. Scores 1 when <35 g/L."
},
"arterial_ph": {
"type": "number",
"description": "Arterial pH (6.80-7.80). Optional. Scores 2 when <7.35; 7.35 does not score. Omitted pH scores 0 (Charles 2008 missing-pH assumption)."
},
"albumin_g_dl": {
"type": "number",
"description": "Albumin in g/dL (1-6). Provide this or albumin_g_l, not both. Scores 1 when <3.5; 3.5 does not score (Charles 2008 A)."
},
"spo2_percent": {
"type": "number",
"description": "Oxygen saturation percent (50-100). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: ≤93 scores 2. Age >50: ≤90 scores 2."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats per minute (integer 30-220). Scores 1 when ≥125; 124 does not score (Charles 2008 T)."
},
"multilobar_cxr": {
"type": "boolean",
"description": "Multilobar involvement on chest radiograph as assigned by the caller (Charles 2008 M). true or false. 1 point if true. magent does not interpret radiographs."
},
"systolic_mm_hg": {
"type": "number",
"description": "Systolic blood pressure in mm Hg (50-250). Scores 2 when <90; 90 does not score (Charles 2008 S)."
},
"respiratory_rate": {
"type": "integer",
"description": "Respiratory rate in breaths/min (integer 4-80). Age ≤50: ≥25 scores 1 (24 does not). Age >50: ≥30 scores 1 (29 does not). Charles 2008 R."
}
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}
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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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"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
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]Extensions
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"heart_rate_bpm": 80,
"multilobar_cxr": false,
"systolic_mm_hg": 120,
"respiratory_rate": 16
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/smart_cop",
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},
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},
{
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"present": false
},
{
"input": "spo2_percent",
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"factor": "oxygen_low",
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"present": false
},
{
"value": 7.4,
"factor": "arterial_ph_lt_7_35",
"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.",
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"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"formula_expression": "SMART-COP (Charles 2008) = SBP<90 (2) + multilobar_cxr (1) + albumin<3.5 g/dL (1) + age-adjusted RR (1; age<=50 RR>=25, age>50 RR>=30) + HR>=125 (1) + confusion (1) + age-adjusted low oxygen (2; age<=50 PaO2<70 or SpO2<=93 or P/F<333; age>50 PaO2<60 or SpO2<=90 or P/F<250) + arterial_pH<7.35 (2; omitted pH scores 0); max 11; IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high"
}
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}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
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],
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"required": [
"type",
"method"
],
"properties": {
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"type": "object",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"age",
"systolic_mm_hg",
"multilobar_cxr",
"respiratory_rate",
"heart_rate_bpm",
"confusion"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Age ≤50 uses RR ≥25, PaO2 <70, SpO2 ≤93%, P/F <333. Age >50 uses RR ≥30, PaO2 <60, SpO2 ≤90%, P/F <250."
},
"pf_ratio": {
"type": "number",
"description": "PaO2/FiO2 ratio (20-800). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: <333 scores 2. Age >50: <250 scores 2."
},
"confusion": {
"type": "boolean",
"description": "New or acute confusion as assigned by the caller (Charles 2008 C). true or false. 1 point if true. magent does not assess mental status."
},
"pao2_mm_hg": {
"type": "number",
"description": "Arterial PaO2 in mm Hg (20-700). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: <70 scores 2. Age >50: <60 scores 2."
},
"albumin_g_l": {
"type": "number",
"description": "Albumin in g/L (10-60). Converted as g/dL = g/L / 10. Provide this or albumin_g_dl, not both. Scores 1 when <35 g/L."
},
"arterial_ph": {
"type": "number",
"description": "Arterial pH (6.80-7.80). Optional. Scores 2 when <7.35; 7.35 does not score. Omitted pH scores 0 (Charles 2008 missing-pH assumption)."
},
"albumin_g_dl": {
"type": "number",
"description": "Albumin in g/dL (1-6). Provide this or albumin_g_l, not both. Scores 1 when <3.5; 3.5 does not score (Charles 2008 A)."
},
"spo2_percent": {
"type": "number",
"description": "Oxygen saturation percent (50-100). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: ≤93 scores 2. Age >50: ≤90 scores 2."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats per minute (integer 30-220). Scores 1 when ≥125; 124 does not score (Charles 2008 T)."
},
"multilobar_cxr": {
"type": "boolean",
"description": "Multilobar involvement on chest radiograph as assigned by the caller (Charles 2008 M). true or false. 1 point if true. magent does not interpret radiographs."
},
"systolic_mm_hg": {
"type": "number",
"description": "Systolic blood pressure in mm Hg (50-250). Scores 2 when <90; 90 does not score (Charles 2008 S)."
},
"respiratory_rate": {
"type": "integer",
"description": "Respiratory rate in breaths/min (integer 4-80). Age ≤50: ≥25 scores 1 (24 does not). Age >50: ≥30 scores 1 (29 does not). Charles 2008 R."
}
}
},
"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 13:14Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 18:45Z
- 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. 15 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/smart_cop, 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.