magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
DaptPciAntiplateletAcsCalculator
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 13:03Z
—
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/dapt",
"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/dapt",
"tags": [
"dapt",
"pci",
"antiplatelet",
"acs",
"calculator"
],
"mimeType": "application/json",
"description": "Yeh 2016 DAPT prediction rule after PCI: exclusive age (<65: 0; 65 to younger than 75: -1; 75 or older: -2) plus MI at presentation, prior MI or PCI, diabetes, stent diameter <3 mm, smoking (current or within past year), and paclitaxel-eluting stent (1 each); CHF or LVEF <30% and vein-graft intervention (2 each). Max 10. Score >=2 high, <2 low. Not a duration order. Not a diagnosis.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 60,
"smoking": false,
"diabetes": false,
"prior_mi_or_pci": false,
"chf_or_lvef_lt_30": false,
"stent_diameter_lt_3mm": false,
"vein_graft_intervention": false,
"paclitaxel_eluting_stent": false,
"myocardial_infarction_at_presentation": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "dapt",
"citation": {
"id": "yeh-2016",
"doi": "10.1001/jama.2016.3775",
"pmid": "27022822",
"title": "Development and Validation of a Prediction Rule for Benefit and Harm of Dual Antiplatelet Therapy Beyond 1 Year After Percutaneous Coronary Intervention",
"source": "JAMA. 2016;315(16):1735-1749",
"authors": "Yeh RW, Secemsky EA, Kereiakes DJ, et al"
},
"age_years": 60,
"max_score": 10,
"risk_band": "low",
"components": [
{
"value": 60,
"factor": "age",
"points": 0,
"present": false
},
{
"factor": "myocardial_infarction_at_presentation",
"points": 0,
"present": false
},
{
"factor": "prior_mi_or_pci",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 0,
"present": false
},
{
"factor": "stent_diameter_lt_3mm",
"points": 0,
"present": false
},
{
"factor": "smoking",
"points": 0,
"present": false
},
{
"factor": "paclitaxel_eluting_stent",
"points": 0,
"present": false
},
{
"factor": "chf_or_lvef_lt_30",
"points": 0,
"present": false
},
{
"factor": "vein_graft_intervention",
"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.",
"formula_expression": "DAPT = exclusive age (<65: 0, 65 to <75: -1, >=75: -2) + myocardial_infarction_at_presentation 1 + prior_mi_or_pci 1 + diabetes 1 + stent_diameter_lt_3mm 1 + smoking 1 + paclitaxel_eluting_stent 1 + chf_or_lvef_lt_30 2 + vein_graft_intervention 2; max 10; >=2 high, <2 low (Yeh 2016)"
}
},
"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": [
"age",
"myocardial_infarction_at_presentation",
"prior_mi_or_pci",
"diabetes",
"stent_diameter_lt_3mm",
"smoking",
"paclitaxel_eluting_stent",
"chf_or_lvef_lt_30",
"vein_graft_intervention"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Yeh 2016 exclusive bands: younger than 65 scores 0; 65 to younger than 75 scores -1; 75 or older scores -2. Age 75 is -2, not -1."
},
"smoking": {
"type": "boolean",
"description": "Current cigarette smoking or smoking within the past year as assigned by the caller (Yeh 2016). true scores 1."
},
"diabetes": {
"type": "boolean",
"description": "Diabetes mellitus as assigned by the caller (Yeh 2016). true scores 1."
},
"prior_mi_or_pci": {
"type": "boolean",
"description": "Prior myocardial infarction or prior PCI as assigned by the caller (Yeh 2016). true scores 1."
},
"chf_or_lvef_lt_30": {
"type": "boolean",
"description": "Congestive heart failure or LVEF <30% as assigned by the caller (Yeh 2016). true scores 2. magent does not measure LVEF."
},
"stent_diameter_lt_3mm": {
"type": "boolean",
"description": "Stent diameter <3 mm as assigned by the caller (Yeh 2016). true scores 1. magent does not measure the stent."
},
"vein_graft_intervention": {
"type": "boolean",
"description": "Vein-graft PCI as assigned by the caller (Yeh 2016). true scores 2. magent does not interpret the angiogram."
},
"paclitaxel_eluting_stent": {
"type": "boolean",
"description": "Paclitaxel-eluting stent as assigned by the caller (Yeh 2016). true scores 1."
},
"myocardial_infarction_at_presentation": {
"type": "boolean",
"description": "Myocardial infarction at presentation as assigned by the caller (Yeh 2016). true scores 1. magent does not diagnose MI."
}
}
}
},
"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/dapt",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 60,
"smoking": false,
"diabetes": false,
"prior_mi_or_pci": false,
"chf_or_lvef_lt_30": false,
"stent_diameter_lt_3mm": false,
"vein_graft_intervention": false,
"paclitaxel_eluting_stent": false,
"myocardial_infarction_at_presentation": false
},
{
"age": 60,
"smoking": false,
"diabetes": false,
"prior_mi_or_pci": false,
"chf_or_lvef_lt_30": false,
"stent_diameter_lt_3mm": false,
"vein_graft_intervention": false,
"paclitaxel_eluting_stent": false,
"myocardial_infarction_at_presentation": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/dapt",
"count": 2,
"items": [
{
"score": 0,
"formula": "dapt",
"citation": {
"id": "yeh-2016",
"doi": "10.1001/jama.2016.3775",
"pmid": "27022822",
"title": "Development and Validation of a Prediction Rule for Benefit and Harm of Dual Antiplatelet Therapy Beyond 1 Year After Percutaneous Coronary Intervention",
"source": "JAMA. 2016;315(16):1735-1749",
"authors": "Yeh RW, Secemsky EA, Kereiakes DJ, et al"
},
"age_years": 60,
"max_score": 10,
"risk_band": "low",
"components": [
{
"value": 60,
"factor": "age",
"points": 0,
"present": false
},
{
"factor": "myocardial_infarction_at_presentation",
"points": 0,
"present": false
},
{
"factor": "prior_mi_or_pci",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 0,
"present": false
},
{
"factor": "stent_diameter_lt_3mm",
"points": 0,
"present": false
},
{
"factor": "smoking",
"points": 0,
"present": false
},
{
"factor": "paclitaxel_eluting_stent",
"points": 0,
"present": false
},
{
"factor": "chf_or_lvef_lt_30",
"points": 0,
"present": false
},
{
"factor": "vein_graft_intervention",
"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.",
"formula_expression": "DAPT = exclusive age (<65: 0, 65 to <75: -1, >=75: -2) + myocardial_infarction_at_presentation 1 + prior_mi_or_pci 1 + diabetes 1 + stent_diameter_lt_3mm 1 + smoking 1 + paclitaxel_eluting_stent 1 + chf_or_lvef_lt_30 2 + vein_graft_intervention 2; max 10; >=2 high, <2 low (Yeh 2016)"
},
{
"score": 0,
"formula": "dapt",
"citation": {
"id": "yeh-2016",
"doi": "10.1001/jama.2016.3775",
"pmid": "27022822",
"title": "Development and Validation of a Prediction Rule for Benefit and Harm of Dual Antiplatelet Therapy Beyond 1 Year After Percutaneous Coronary Intervention",
"source": "JAMA. 2016;315(16):1735-1749",
"authors": "Yeh RW, Secemsky EA, Kereiakes DJ, et al"
},
"age_years": 60,
"max_score": 10,
"risk_band": "low",
"components": [
{
"value": 60,
"factor": "age",
"points": 0,
"present": false
},
{
"factor": "myocardial_infarction_at_presentation",
"points": 0,
"present": false
},
{
"factor": "prior_mi_or_pci",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 0,
"present": false
},
{
"factor": "stent_diameter_lt_3mm",
"points": 0,
"present": false
},
{
"factor": "smoking",
"points": 0,
"present": false
},
{
"factor": "paclitaxel_eluting_stent",
"points": 0,
"present": false
},
{
"factor": "chf_or_lvef_lt_30",
"points": 0,
"present": false
},
{
"factor": "vein_graft_intervention",
"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.",
"formula_expression": "DAPT = exclusive age (<65: 0, 65 to <75: -1, >=75: -2) + myocardial_infarction_at_presentation 1 + prior_mi_or_pci 1 + diabetes 1 + stent_diameter_lt_3mm 1 + smoking 1 + paclitaxel_eluting_stent 1 + chf_or_lvef_lt_30 2 + vein_graft_intervention 2; max 10; >=2 high, <2 low (Yeh 2016)"
}
]
}
},
"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",
"myocardial_infarction_at_presentation",
"prior_mi_or_pci",
"diabetes",
"stent_diameter_lt_3mm",
"smoking",
"paclitaxel_eluting_stent",
"chf_or_lvef_lt_30",
"vein_graft_intervention"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Yeh 2016 exclusive bands: younger than 65 scores 0; 65 to younger than 75 scores -1; 75 or older scores -2. Age 75 is -2, not -1."
},
"smoking": {
"type": "boolean",
"description": "Current cigarette smoking or smoking within the past year as assigned by the caller (Yeh 2016). true scores 1."
},
"diabetes": {
"type": "boolean",
"description": "Diabetes mellitus as assigned by the caller (Yeh 2016). true scores 1."
},
"prior_mi_or_pci": {
"type": "boolean",
"description": "Prior myocardial infarction or prior PCI as assigned by the caller (Yeh 2016). true scores 1."
},
"chf_or_lvef_lt_30": {
"type": "boolean",
"description": "Congestive heart failure or LVEF <30% as assigned by the caller (Yeh 2016). true scores 2. magent does not measure LVEF."
},
"stent_diameter_lt_3mm": {
"type": "boolean",
"description": "Stent diameter <3 mm as assigned by the caller (Yeh 2016). true scores 1. magent does not measure the stent."
},
"vein_graft_intervention": {
"type": "boolean",
"description": "Vein-graft PCI as assigned by the caller (Yeh 2016). true scores 2. magent does not interpret the angiogram."
},
"paclitaxel_eluting_stent": {
"type": "boolean",
"description": "Paclitaxel-eluting stent as assigned by the caller (Yeh 2016). true scores 1."
},
"myocardial_infarction_at_presentation": {
"type": "boolean",
"description": "Myocardial infarction at presentation as assigned by the caller (Yeh 2016). true scores 1. magent does not diagnose MI."
}
}
},
"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 13:03Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 11:46Z
- 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. 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/dapt, 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.