magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
Berlin-ardsArdsRespiratoryOxygenationCalculator
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 12:58Z
—
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/berlin_ards",
"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/berlin_ards",
"tags": [
"berlin-ards",
"ards",
"respiratory",
"oxygenation",
"calculator"
],
"mimeType": "application/json",
"description": "Berlin Definition of ARDS (Ranieri 2012). berlin_ards iff clinical box (onset within 1 week, bilateral opacities not fully explained, origin not fully HF or fluid) and severity mild, moderate, or severe. Severe: PF<=100 with PEEP>=5. Moderate: 100<PF<=200 with PEEP>=5. Mild: 200<PF<=300 with PEEP or CPAP>=5. Caller assigns flags and pf_ratio. magent does not read radiographs or echo, diagnose ARDS, or set ventilator mode. Not AECC 1994, not Kigali, not the oxygenation index.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"pf_ratio": 90,
"cpap_ge_5": false,
"peep_ge_5": true,
"onset_within_1_week": true,
"origin_not_fully_hf_or_fluid": true,
"bilateral_opacities_not_fully_explained": true
}
},
"output": {
"type": "json",
"example": {
"formula": "berlin_ards",
"citation": {
"id": "ranieri-2012",
"doi": "10.1001/jama.2012.5669",
"pmid": "22797452",
"title": "Acute respiratory distress syndrome: the Berlin Definition",
"source": "JAMA. 2012;307(23):2526-2533",
"authors": "The ARDS Definition Task Force; Ranieri VM, Rubenfeld GD, Thompson BT, Ferguson ND, Caldwell E, Fan E, Camporota L, Slutsky AS"
},
"criteria": [
{
"met": true,
"factor": "onset_within_1_week"
},
{
"met": true,
"factor": "bilateral_opacities_not_fully_explained"
},
{
"met": true,
"factor": "origin_not_fully_hf_or_fluid"
},
{
"met": true,
"factor": "clinical_box"
},
{
"met": true,
"factor": "peep_ge_5"
},
{
"met": false,
"factor": "cpap_ge_5"
},
{
"met": true,
"value": 90,
"factor": "severe"
},
{
"met": false,
"value": 90,
"factor": "moderate"
},
{
"met": false,
"value": 90,
"factor": "mild"
}
],
"pf_ratio": 90,
"severity": "severe",
"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.",
"berlin_ards": true,
"clinical_box": true,
"formula_expression": "clinical_box iff onset_within_1_week and bilateral_opacities_not_fully_explained and origin_not_fully_hf_or_fluid; severe iff clinical_box and pf_ratio <= 100 and peep_ge_5; moderate iff clinical_box and 100 < pf_ratio <= 200 and peep_ge_5; mild iff clinical_box and 200 < pf_ratio <= 300 and (peep_ge_5 or cpap_ge_5); berlin_ards iff severity is mild, moderate, or severe; else none (Ranieri 2012 Berlin Definition)"
}
},
"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": [
"onset_within_1_week",
"bilateral_opacities_not_fully_explained",
"origin_not_fully_hf_or_fluid",
"peep_ge_5",
"cpap_ge_5",
"pf_ratio"
],
"properties": {
"pf_ratio": {
"type": "number",
"description": "PaO2/FiO2 ratio in mm Hg (20-800). Caller-supplied; magent does not recompute from PaO2 and FiO2."
},
"cpap_ge_5": {
"type": "boolean",
"description": "CPAP >= 5 cm H2O as assigned by the caller (counts for mild only; CPAP without PEEP is not moderate or severe). magent does not set ventilator mode."
},
"peep_ge_5": {
"type": "boolean",
"description": "PEEP >= 5 cm H2O as assigned by the caller (required for moderate and severe; either PEEP or CPAP for mild). magent does not set ventilator mode."
},
"onset_within_1_week": {
"type": "boolean",
"description": "Onset within 1 week of a known clinical insult or new or worsening respiratory symptoms (Ranieri 2012). true or false as assigned by the caller. magent does not take a history."
},
"origin_not_fully_hf_or_fluid": {
"type": "boolean",
"description": "Respiratory failure not fully explained by cardiac failure or fluid overload (Ranieri 2012). true or false as assigned by the caller. magent does not read echocardiography."
},
"bilateral_opacities_not_fully_explained": {
"type": "boolean",
"description": "Bilateral opacities not fully explained by effusions, lobar/lung collapse, or nodules (Ranieri 2012). true or false as assigned by the caller. magent does not read radiographs."
}
}
}
},
"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/berlin_ards",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"pf_ratio": 90,
"cpap_ge_5": false,
"peep_ge_5": true,
"onset_within_1_week": true,
"origin_not_fully_hf_or_fluid": true,
"bilateral_opacities_not_fully_explained": true
},
{
"pf_ratio": 90,
"cpap_ge_5": false,
"peep_ge_5": true,
"onset_within_1_week": true,
"origin_not_fully_hf_or_fluid": true,
"bilateral_opacities_not_fully_explained": true
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/berlin_ards",
"count": 2,
"items": [
{
"formula": "berlin_ards",
"citation": {
"id": "ranieri-2012",
"doi": "10.1001/jama.2012.5669",
"pmid": "22797452",
"title": "Acute respiratory distress syndrome: the Berlin Definition",
"source": "JAMA. 2012;307(23):2526-2533",
"authors": "The ARDS Definition Task Force; Ranieri VM, Rubenfeld GD, Thompson BT, Ferguson ND, Caldwell E, Fan E, Camporota L, Slutsky AS"
},
"criteria": [
{
"met": true,
"factor": "onset_within_1_week"
},
{
"met": true,
"factor": "bilateral_opacities_not_fully_explained"
},
{
"met": true,
"factor": "origin_not_fully_hf_or_fluid"
},
{
"met": true,
"factor": "clinical_box"
},
{
"met": true,
"factor": "peep_ge_5"
},
{
"met": false,
"factor": "cpap_ge_5"
},
{
"met": true,
"value": 90,
"factor": "severe"
},
{
"met": false,
"value": 90,
"factor": "moderate"
},
{
"met": false,
"value": 90,
"factor": "mild"
}
],
"pf_ratio": 90,
"severity": "severe",
"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.",
"berlin_ards": true,
"clinical_box": true,
"formula_expression": "clinical_box iff onset_within_1_week and bilateral_opacities_not_fully_explained and origin_not_fully_hf_or_fluid; severe iff clinical_box and pf_ratio <= 100 and peep_ge_5; moderate iff clinical_box and 100 < pf_ratio <= 200 and peep_ge_5; mild iff clinical_box and 200 < pf_ratio <= 300 and (peep_ge_5 or cpap_ge_5); berlin_ards iff severity is mild, moderate, or severe; else none (Ranieri 2012 Berlin Definition)"
},
{
"formula": "berlin_ards",
"citation": {
"id": "ranieri-2012",
"doi": "10.1001/jama.2012.5669",
"pmid": "22797452",
"title": "Acute respiratory distress syndrome: the Berlin Definition",
"source": "JAMA. 2012;307(23):2526-2533",
"authors": "The ARDS Definition Task Force; Ranieri VM, Rubenfeld GD, Thompson BT, Ferguson ND, Caldwell E, Fan E, Camporota L, Slutsky AS"
},
"criteria": [
{
"met": true,
"factor": "onset_within_1_week"
},
{
"met": true,
"factor": "bilateral_opacities_not_fully_explained"
},
{
"met": true,
"factor": "origin_not_fully_hf_or_fluid"
},
{
"met": true,
"factor": "clinical_box"
},
{
"met": true,
"factor": "peep_ge_5"
},
{
"met": false,
"factor": "cpap_ge_5"
},
{
"met": true,
"value": 90,
"factor": "severe"
},
{
"met": false,
"value": 90,
"factor": "moderate"
},
{
"met": false,
"value": 90,
"factor": "mild"
}
],
"pf_ratio": 90,
"severity": "severe",
"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.",
"berlin_ards": true,
"clinical_box": true,
"formula_expression": "clinical_box iff onset_within_1_week and bilateral_opacities_not_fully_explained and origin_not_fully_hf_or_fluid; severe iff clinical_box and pf_ratio <= 100 and peep_ge_5; moderate iff clinical_box and 100 < pf_ratio <= 200 and peep_ge_5; mild iff clinical_box and 200 < pf_ratio <= 300 and (peep_ge_5 or cpap_ge_5); berlin_ards iff severity is mild, moderate, or severe; else none (Ranieri 2012 Berlin Definition)"
}
]
}
},
"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": [
"onset_within_1_week",
"bilateral_opacities_not_fully_explained",
"origin_not_fully_hf_or_fluid",
"peep_ge_5",
"cpap_ge_5",
"pf_ratio"
],
"properties": {
"pf_ratio": {
"type": "number",
"description": "PaO2/FiO2 ratio in mm Hg (20-800). Caller-supplied; magent does not recompute from PaO2 and FiO2."
},
"cpap_ge_5": {
"type": "boolean",
"description": "CPAP >= 5 cm H2O as assigned by the caller (counts for mild only; CPAP without PEEP is not moderate or severe). magent does not set ventilator mode."
},
"peep_ge_5": {
"type": "boolean",
"description": "PEEP >= 5 cm H2O as assigned by the caller (required for moderate and severe; either PEEP or CPAP for mild). magent does not set ventilator mode."
},
"onset_within_1_week": {
"type": "boolean",
"description": "Onset within 1 week of a known clinical insult or new or worsening respiratory symptoms (Ranieri 2012). true or false as assigned by the caller. magent does not take a history."
},
"origin_not_fully_hf_or_fluid": {
"type": "boolean",
"description": "Respiratory failure not fully explained by cardiac failure or fluid overload (Ranieri 2012). true or false as assigned by the caller. magent does not read echocardiography."
},
"bilateral_opacities_not_fully_explained": {
"type": "boolean",
"description": "Bilateral opacities not fully explained by effusions, lobar/lung collapse, or nodules (Ranieri 2012). true or false as assigned by the caller. magent does not read radiographs."
}
}
},
"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 12:58Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 16:45Z
- 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/berlin_ards, 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.