magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Dataofflineeip155:8453Exactvia cdp
RibsRib-fractureTraumaEmergencyCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 7 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 2026-09-02 05:28Z
—
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/ribs",
"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/ribs",
"tags": [
"ribs",
"rib-fracture",
"trauma",
"emergency",
"calculator"
],
"mimeType": "application/json",
"description": "Buchholz 2023 Revised Intensity Battle Score: 2.275 per fractured rib level, 4.08 chest tube, 1.525 pulmonary contusions, 2.83 COPD, 8.137 when GCS <15, rounded to an integer. Age is not a component. Published ICU triage cutoff 12. Not Chapman 2016 RibScore and not Battle 2014 STUMBL. magent does not count ribs or compute GCS. Deterministic published arithmetic with citation; not a diagnosis or surgical plan.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"gcs": 15,
"copd": false,
"rib_count": 1,
"chest_tube": false,
"pulmonary_contusions": false
}
},
"output": {
"type": "json",
"example": {
"gcs": 15,
"copd": false,
"score": 2,
"formula": "ribs",
"citation": {
"id": "buchholz-2022",
"doi": "10.1177/00031348221123087",
"pmid": "36120831",
"title": "Revised Intensity Battle Score (RIBS): Development of a Clinical Score for Predicting Poor Outcomes After Rib Fractures",
"source": "Am Surg. 2023;89(10):4668-4674",
"authors": "Buchholz CJ, Jia L, Manea C, Petersen T, Wang H, Stright A, Young JS, Calland JF"
},
"gcs_lt_15": false,
"rib_count": 1,
"ribs_band": "below_12",
"chest_tube": false,
"components": [
{
"value": 1,
"factor": "rib_count",
"points": 2.275,
"present": true
},
{
"factor": "chest_tube",
"points": 0,
"present": false
},
{
"factor": "pulmonary_contusions",
"points": 0,
"present": false
},
{
"factor": "copd",
"points": 0,
"present": false
},
{
"value": 15,
"factor": "gcs",
"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.",
"icu_triage_cutoff": false,
"mortality_percent": 2.8,
"formula_expression": "RIBS = round(2.275*rib_count + 1.525*pulmonary_contusions + 2.83*copd + 4.08*chest_tube + 8.137*(gcs<15)); Buchholz 2023; rib level not fracture count; age is not a component; ICU triage cutoff 12; not Chapman 2016 RibScore; not Battle 2014 STUMBL",
"pulmonary_contusions": false,
"any_complication_percent": 7.5,
"pneumonia_or_vap_percent": 3,
"vent_or_tracheostomy_percent": 1.9,
"unplanned_icu_or_intubation_percent": 4.7
}
},
"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": [
"rib_count",
"chest_tube",
"pulmonary_contusions",
"copd",
"gcs"
],
"properties": {
"gcs": {
"type": "integer",
"description": "Caller-assigned Glasgow Coma Scale total, integer 3–15. Buchholz 2023 scores 8.137 when GCS <15 and 0 when GCS is 15. magent does not compute eye, verbal, or motor."
},
"copd": {
"type": "boolean",
"description": "History of COPD as assigned by the caller (Buchholz 2023). true or false. true scores 2.83 before rounding. Age is not a component."
},
"rib_count": {
"type": "integer",
"description": "Caller-assigned number of fractured rib levels, integer 0–24. Buchholz 2023: 2.275 points per rib level, not per individual fracture (six fractures on three ribs is 3). magent does not read a CT or count ribs."
},
"chest_tube": {
"type": "boolean",
"description": "Chest tube placed, present, or anticipated as assigned by the caller (Buchholz 2023). true or false. true scores 4.08 before rounding."
},
"pulmonary_contusions": {
"type": "boolean",
"description": "Pulmonary contusions as assigned by the caller (Buchholz 2023). true or false. true scores 1.525 before rounding. magent does not read a CT."
}
}
}
},
"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/ribs",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"gcs": 15,
"copd": false,
"rib_count": 1,
"chest_tube": false,
"pulmonary_contusions": false
},
{
"gcs": 15,
"copd": false,
"rib_count": 1,
"chest_tube": false,
"pulmonary_contusions": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/ribs",
"count": 2,
"items": [
{
"gcs": 15,
"copd": false,
"score": 2,
"formula": "ribs",
"citation": {
"id": "buchholz-2022",
"doi": "10.1177/00031348221123087",
"pmid": "36120831",
"title": "Revised Intensity Battle Score (RIBS): Development of a Clinical Score for Predicting Poor Outcomes After Rib Fractures",
"source": "Am Surg. 2023;89(10):4668-4674",
"authors": "Buchholz CJ, Jia L, Manea C, Petersen T, Wang H, Stright A, Young JS, Calland JF"
},
"gcs_lt_15": false,
"rib_count": 1,
"ribs_band": "below_12",
"chest_tube": false,
"components": [
{
"value": 1,
"factor": "rib_count",
"points": 2.275,
"present": true
},
{
"factor": "chest_tube",
"points": 0,
"present": false
},
{
"factor": "pulmonary_contusions",
"points": 0,
"present": false
},
{
"factor": "copd",
"points": 0,
"present": false
},
{
"value": 15,
"factor": "gcs",
"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.",
"icu_triage_cutoff": false,
"mortality_percent": 2.8,
"formula_expression": "RIBS = round(2.275*rib_count + 1.525*pulmonary_contusions + 2.83*copd + 4.08*chest_tube + 8.137*(gcs<15)); Buchholz 2023; rib level not fracture count; age is not a component; ICU triage cutoff 12; not Chapman 2016 RibScore; not Battle 2014 STUMBL",
"pulmonary_contusions": false,
"any_complication_percent": 7.5,
"pneumonia_or_vap_percent": 3,
"vent_or_tracheostomy_percent": 1.9,
"unplanned_icu_or_intubation_percent": 4.7
},
{
"gcs": 15,
"copd": false,
"score": 2,
"formula": "ribs",
"citation": {
"id": "buchholz-2022",
"doi": "10.1177/00031348221123087",
"pmid": "36120831",
"title": "Revised Intensity Battle Score (RIBS): Development of a Clinical Score for Predicting Poor Outcomes After Rib Fractures",
"source": "Am Surg. 2023;89(10):4668-4674",
"authors": "Buchholz CJ, Jia L, Manea C, Petersen T, Wang H, Stright A, Young JS, Calland JF"
},
"gcs_lt_15": false,
"rib_count": 1,
"ribs_band": "below_12",
"chest_tube": false,
"components": [
{
"value": 1,
"factor": "rib_count",
"points": 2.275,
"present": true
},
{
"factor": "chest_tube",
"points": 0,
"present": false
},
{
"factor": "pulmonary_contusions",
"points": 0,
"present": false
},
{
"factor": "copd",
"points": 0,
"present": false
},
{
"value": 15,
"factor": "gcs",
"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.",
"icu_triage_cutoff": false,
"mortality_percent": 2.8,
"formula_expression": "RIBS = round(2.275*rib_count + 1.525*pulmonary_contusions + 2.83*copd + 4.08*chest_tube + 8.137*(gcs<15)); Buchholz 2023; rib level not fracture count; age is not a component; ICU triage cutoff 12; not Chapman 2016 RibScore; not Battle 2014 STUMBL",
"pulmonary_contusions": false,
"any_complication_percent": 7.5,
"pneumonia_or_vap_percent": 3,
"vent_or_tracheostomy_percent": 1.9,
"unplanned_icu_or_intubation_percent": 4.7
}
]
}
},
"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": [
"rib_count",
"chest_tube",
"pulmonary_contusions",
"copd",
"gcs"
],
"properties": {
"gcs": {
"type": "integer",
"description": "Caller-assigned Glasgow Coma Scale total, integer 3–15. Buchholz 2023 scores 8.137 when GCS <15 and 0 when GCS is 15. magent does not compute eye, verbal, or motor."
},
"copd": {
"type": "boolean",
"description": "History of COPD as assigned by the caller (Buchholz 2023). true or false. true scores 2.83 before rounding. Age is not a component."
},
"rib_count": {
"type": "integer",
"description": "Caller-assigned number of fractured rib levels, integer 0–24. Buchholz 2023: 2.275 points per rib level, not per individual fracture (six fractures on three ribs is 3). magent does not read a CT or count ribs."
},
"chest_tube": {
"type": "boolean",
"description": "Chest tube placed, present, or anticipated as assigned by the caller (Buchholz 2023). true or false. true scores 4.08 before rounding."
},
"pulmonary_contusions": {
"type": "boolean",
"description": "Pulmonary contusions as assigned by the caller (Buchholz 2023). true or false. true scores 1.525 before rounding. magent does not read a CT."
}
}
},
"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
- 2026-09-02 05:28Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 21:15Z
- 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. 7 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/ribs, 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.