magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
TradingLiveeip155:8453Exactvia cdp
BliBlast-lungRespiratoryTraumaCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 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 16:36Z
—
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/bli",
"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/bli",
"tags": [
"bli",
"blast-lung",
"respiratory",
"trauma",
"calculator"
],
"mimeType": "application/json",
"description": "Pizov 1999 blast lung injury severity. Mild, moderate, or severe only when inputs match a published definition: mild PaO2/FiO2 > 200, localized infiltrates, no pneumothorax; moderate 60 to 200, diffuse infiltrates, with or without pneumothorax; severe < 60, bilateral infiltrates, and bronchopleural fistula. Unmatched combinations are rejected. Caller assigns all findings. magent does not read a chest radiograph or assay blood gas. Not a ventilator prescription.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"pf_ratio": 250,
"infiltrates": "localized",
"pneumothorax": false,
"bronchopleural_fistula": false
}
},
"output": {
"type": "json",
"example": {
"formula": "bli",
"citation": {
"id": "pizov-1999",
"doi": "10.1378/chest.115.1.165",
"pmid": "9925079",
"title": "Blast lung injury from an explosion on a civilian bus",
"source": "Chest. 1999;115(1):165-172",
"authors": "Pizov R, Oppenheim-Eden A, Matot I, Weiss YG, Eidelman LA, Rivkind AI, Sprung CL"
},
"pf_ratio": 250,
"severity": "mild",
"components": [
{
"met": true,
"value": 250,
"factor": "pf_ratio"
},
{
"met": true,
"value": "localized",
"factor": "infiltrates"
},
{
"met": false,
"factor": "pneumothorax"
},
{
"met": false,
"factor": "bronchopleural_fistula"
},
{
"met": true,
"factor": "mild"
},
{
"met": false,
"factor": "moderate"
},
{
"met": false,
"factor": "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.",
"description": "PaO2/FiO2 > 200, localized lung infiltrates, no pneumothorax",
"infiltrates": "localized",
"pneumothorax": false,
"formula_expression": "mild iff pf_ratio > 200 and infiltrates localized and no pneumothorax and no bronchopleural fistula; moderate iff 60 <= pf_ratio <= 200 and infiltrates diffuse and no bronchopleural fistula (pneumothorax optional); severe iff pf_ratio < 60 and infiltrates bilateral and bronchopleural fistula; unmatched combinations are invalid (Pizov 1999). Not a numeric point total",
"bronchopleural_fistula": 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": [
"pf_ratio",
"infiltrates",
"pneumothorax",
"bronchopleural_fistula"
],
"properties": {
"pf_ratio": {
"type": "number",
"description": "PaO2/FiO2 ratio in mm Hg (20-600). Pizov 1999 bands: >200 mild, 60 to 200 moderate, <60 severe. Caller-supplied; magent does not assay blood gas."
},
"infiltrates": {
"type": "string",
"description": "Lung infiltrate pattern as assigned by the caller: localized (mild), diffuse (moderate; Pizov 1999 diffuse bilateral or unilateral), or bilateral (severe). magent does not read a chest radiograph."
},
"pneumothorax": {
"type": "boolean",
"description": "true when the caller assigns pneumothorax. Mild requires false; moderate allows true or false; severe does not use this flag (Pizov 1999). magent does not read a chest radiograph."
},
"bronchopleural_fistula": {
"type": "boolean",
"description": "true when the caller assigns bronchopleural fistula. Required true for severe; mild and moderate require false so the combination matches a Pizov 1999 definition exactly. magent does not read a chest radiograph."
}
}
}
},
"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/bli",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"pf_ratio": 250,
"infiltrates": "localized",
"pneumothorax": false,
"bronchopleural_fistula": false
},
{
"pf_ratio": 250,
"infiltrates": "localized",
"pneumothorax": false,
"bronchopleural_fistula": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/bli",
"count": 2,
"items": [
{
"formula": "bli",
"citation": {
"id": "pizov-1999",
"doi": "10.1378/chest.115.1.165",
"pmid": "9925079",
"title": "Blast lung injury from an explosion on a civilian bus",
"source": "Chest. 1999;115(1):165-172",
"authors": "Pizov R, Oppenheim-Eden A, Matot I, Weiss YG, Eidelman LA, Rivkind AI, Sprung CL"
},
"pf_ratio": 250,
"severity": "mild",
"components": [
{
"met": true,
"value": 250,
"factor": "pf_ratio"
},
{
"met": true,
"value": "localized",
"factor": "infiltrates"
},
{
"met": false,
"factor": "pneumothorax"
},
{
"met": false,
"factor": "bronchopleural_fistula"
},
{
"met": true,
"factor": "mild"
},
{
"met": false,
"factor": "moderate"
},
{
"met": false,
"factor": "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.",
"description": "PaO2/FiO2 > 200, localized lung infiltrates, no pneumothorax",
"infiltrates": "localized",
"pneumothorax": false,
"formula_expression": "mild iff pf_ratio > 200 and infiltrates localized and no pneumothorax and no bronchopleural fistula; moderate iff 60 <= pf_ratio <= 200 and infiltrates diffuse and no bronchopleural fistula (pneumothorax optional); severe iff pf_ratio < 60 and infiltrates bilateral and bronchopleural fistula; unmatched combinations are invalid (Pizov 1999). Not a numeric point total",
"bronchopleural_fistula": false
},
{
"formula": "bli",
"citation": {
"id": "pizov-1999",
"doi": "10.1378/chest.115.1.165",
"pmid": "9925079",
"title": "Blast lung injury from an explosion on a civilian bus",
"source": "Chest. 1999;115(1):165-172",
"authors": "Pizov R, Oppenheim-Eden A, Matot I, Weiss YG, Eidelman LA, Rivkind AI, Sprung CL"
},
"pf_ratio": 250,
"severity": "mild",
"components": [
{
"met": true,
"value": 250,
"factor": "pf_ratio"
},
{
"met": true,
"value": "localized",
"factor": "infiltrates"
},
{
"met": false,
"factor": "pneumothorax"
},
{
"met": false,
"factor": "bronchopleural_fistula"
},
{
"met": true,
"factor": "mild"
},
{
"met": false,
"factor": "moderate"
},
{
"met": false,
"factor": "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.",
"description": "PaO2/FiO2 > 200, localized lung infiltrates, no pneumothorax",
"infiltrates": "localized",
"pneumothorax": false,
"formula_expression": "mild iff pf_ratio > 200 and infiltrates localized and no pneumothorax and no bronchopleural fistula; moderate iff 60 <= pf_ratio <= 200 and infiltrates diffuse and no bronchopleural fistula (pneumothorax optional); severe iff pf_ratio < 60 and infiltrates bilateral and bronchopleural fistula; unmatched combinations are invalid (Pizov 1999). Not a numeric point total",
"bronchopleural_fistula": 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": [
"pf_ratio",
"infiltrates",
"pneumothorax",
"bronchopleural_fistula"
],
"properties": {
"pf_ratio": {
"type": "number",
"description": "PaO2/FiO2 ratio in mm Hg (20-600). Pizov 1999 bands: >200 mild, 60 to 200 moderate, <60 severe. Caller-supplied; magent does not assay blood gas."
},
"infiltrates": {
"type": "string",
"description": "Lung infiltrate pattern as assigned by the caller: localized (mild), diffuse (moderate; Pizov 1999 diffuse bilateral or unilateral), or bilateral (severe). magent does not read a chest radiograph."
},
"pneumothorax": {
"type": "boolean",
"description": "true when the caller assigns pneumothorax. Mild requires false; moderate allows true or false; severe does not use this flag (Pizov 1999). magent does not read a chest radiograph."
},
"bronchopleural_fistula": {
"type": "boolean",
"description": "true when the caller assigns bronchopleural fistula. Required true for severe; mild and moderate require false so the combination matches a Pizov 1999 definition exactly. magent does not read a chest radiograph."
}
}
},
"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 16:36Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 09:15Z
- 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. 9 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/bli, 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.