magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
DataLiveeip155:8453Exactvia cdp
Doac-scoreBleedingAfibDoacScore
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 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 13:01Z
—
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/doac_score",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
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"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
"assetTransferMethod": "eip3009"
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"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
],
"resource": {
"url": "https://api.magentlab.com/api/calc/doac_score",
"tags": [
"doac-score",
"bleeding",
"afib",
"doac",
"score"
],
"mimeType": "application/json",
"description": "Aggarwal 2023 DOAC Score (Circulation Table 2) for AF on DOACs: age 65-69 2 / 70-74 3 / 75-79 4 / >=80 5 (<65 0); CrCl/eGFR 30-60 inclusive 1, <30 2; underweight caller BMI <18.5 flag 1; stroke/TIA/embolism 1; diabetes 1; hypertension 1; antiplatelet none 0, aspirin 2, dual 3; NSAID 1; bleeding history 3; liver disease 2. Score min(raw, 10). Bands 0-3 very_low, 4-5 low, 6-7 moderate, 8-9 high, 10 very_high. Not HAS-BLED. Not DOAC dosing. Not warfarin.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 65,
"diabetes": false,
"nsaid_use": false,
"underweight": false,
"antiplatelet": "none",
"hypertension": false,
"liver_disease": false,
"bleeding_history": false,
"crcl_or_egfr_ml_min": 70,
"stroke_tia_embolism_history": false
}
},
"output": {
"type": "json",
"example": {
"band": "very_low",
"score": 2,
"formula": "doac_score",
"citation": {
"id": "aggarwal-2023",
"doi": "10.1161/CIRCULATIONAHA.123.064556",
"pmid": "37621213",
"title": "Development and Validation of the DOAC Score: A Novel Bleeding Risk Prediction Tool for Patients With Atrial Fibrillation on Direct-Acting Oral Anticoagulants",
"source": "Circulation. 2023;148(12):936-946",
"authors": "Aggarwal R, Ruff CT, Virdone S, Perreault S, Kakkar AK, Palazzolo MG, Dorais M, Kayani G, Singer DE, Secemsky E, Piccini J, Tahir UA, Shen C, Yeh RW"
},
"age_years": 65,
"max_score": 10,
"components": [
{
"value": 65,
"factor": "age",
"points": 2,
"present": true
},
{
"value": 70,
"factor": "crcl_or_egfr",
"points": 0,
"present": false
},
{
"factor": "underweight",
"points": 0,
"present": false
},
{
"factor": "stroke_tia_embolism_history",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 0,
"present": false
},
{
"factor": "hypertension",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "antiplatelet",
"points": 0,
"present": false
},
{
"factor": "nsaid_use",
"points": 0,
"present": false
},
{
"factor": "bleeding_history",
"points": 0,
"present": false
},
{
"factor": "liver_disease",
"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.",
"antiplatelet": "none",
"uncapped_sum": 2,
"formula_expression": "DOAC Score (Aggarwal 2023 Circulation Table 2) = age (65-69 2, 70-74 3, 75-79 4, >=80 5; <65 0) + crcl_or_egfr_ml_min (30-60 inclusive 1, <30 2, >60 0) + underweight 1 + stroke_tia_embolism_history 1 + diabetes 1 + hypertension 1 + antiplatelet (none 0, aspirin 2, dual 3) + nsaid_use 1 + bleeding_history 3 + liver_disease 2; score = min(raw_sum, 10); bands 0-3 very_low, 4-5 low, 6-7 moderate, 8-9 high, 10 very_high; not HAS-BLED; not DOAC dosing; not warfarin",
"crcl_or_egfr_ml_min": 70
}
},
"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",
"crcl_or_egfr_ml_min",
"underweight",
"stroke_tia_embolism_history",
"diabetes",
"hypertension",
"antiplatelet",
"nsaid_use",
"bleeding_history",
"liver_disease"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Table 2: 65-69 scores 2; 70-74 scores 3; 75-79 scores 4; ≥80 scores 5; age <65 scores 0 and is accepted."
},
"diabetes": {
"type": "boolean",
"description": "Diabetes as assigned by the caller. true or false. Scores 1."
},
"nsaid_use": {
"type": "boolean",
"description": "NSAID use as assigned by the caller. true or false. Scores 1."
},
"underweight": {
"type": "boolean",
"description": "Caller-assigned BMI <18.5 kg/m² (Table 2 underweight). true or false. Scores 1. magent does not compute BMI."
},
"antiplatelet": {
"enum": [
"none",
"aspirin",
"dual"
],
"type": "string",
"description": "Antiplatelet use: none (0), aspirin (2), or dual (aspirin + P2Y12; 3). Table 2."
},
"hypertension": {
"type": "boolean",
"description": "Hypertension as assigned by the caller. true or false. Scores 1."
},
"liver_disease": {
"type": "boolean",
"description": "Liver disease as assigned by the caller (Table 2 footnote: AST, ALT, or ALP ≥3× ULN, ALP ≥2× ULN, or cirrhosis). true or false. Scores 2. magent does not assay labs or assign Child-Pugh."
},
"bleeding_history": {
"type": "boolean",
"description": "Bleeding history as assigned by the caller. true or false. Scores 3."
},
"crcl_or_egfr_ml_min": {
"type": "number",
"description": "Creatinine clearance or eGFR in mL/min (5-200). Table 2: 30-60 inclusive scores 1; <30 scores 2; >60 scores 0. Exactly 30 and exactly 60 score 1."
},
"stroke_tia_embolism_history": {
"type": "boolean",
"description": "History of stroke, TIA, or embolism as assigned by the caller. true or false. Scores 1."
}
}
}
},
"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/doac_score",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 65,
"diabetes": false,
"nsaid_use": false,
"underweight": false,
"antiplatelet": "none",
"hypertension": false,
"liver_disease": false,
"bleeding_history": false,
"crcl_or_egfr_ml_min": 70,
"stroke_tia_embolism_history": false
},
{
"age": 65,
"diabetes": false,
"nsaid_use": false,
"underweight": false,
"antiplatelet": "none",
"hypertension": false,
"liver_disease": false,
"bleeding_history": false,
"crcl_or_egfr_ml_min": 70,
"stroke_tia_embolism_history": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/doac_score",
"count": 2,
"items": [
{
"band": "very_low",
"score": 2,
"formula": "doac_score",
"citation": {
"id": "aggarwal-2023",
"doi": "10.1161/CIRCULATIONAHA.123.064556",
"pmid": "37621213",
"title": "Development and Validation of the DOAC Score: A Novel Bleeding Risk Prediction Tool for Patients With Atrial Fibrillation on Direct-Acting Oral Anticoagulants",
"source": "Circulation. 2023;148(12):936-946",
"authors": "Aggarwal R, Ruff CT, Virdone S, Perreault S, Kakkar AK, Palazzolo MG, Dorais M, Kayani G, Singer DE, Secemsky E, Piccini J, Tahir UA, Shen C, Yeh RW"
},
"age_years": 65,
"max_score": 10,
"components": [
{
"value": 65,
"factor": "age",
"points": 2,
"present": true
},
{
"value": 70,
"factor": "crcl_or_egfr",
"points": 0,
"present": false
},
{
"factor": "underweight",
"points": 0,
"present": false
},
{
"factor": "stroke_tia_embolism_history",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 0,
"present": false
},
{
"factor": "hypertension",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "antiplatelet",
"points": 0,
"present": false
},
{
"factor": "nsaid_use",
"points": 0,
"present": false
},
{
"factor": "bleeding_history",
"points": 0,
"present": false
},
{
"factor": "liver_disease",
"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.",
"antiplatelet": "none",
"uncapped_sum": 2,
"formula_expression": "DOAC Score (Aggarwal 2023 Circulation Table 2) = age (65-69 2, 70-74 3, 75-79 4, >=80 5; <65 0) + crcl_or_egfr_ml_min (30-60 inclusive 1, <30 2, >60 0) + underweight 1 + stroke_tia_embolism_history 1 + diabetes 1 + hypertension 1 + antiplatelet (none 0, aspirin 2, dual 3) + nsaid_use 1 + bleeding_history 3 + liver_disease 2; score = min(raw_sum, 10); bands 0-3 very_low, 4-5 low, 6-7 moderate, 8-9 high, 10 very_high; not HAS-BLED; not DOAC dosing; not warfarin",
"crcl_or_egfr_ml_min": 70
},
{
"band": "very_low",
"score": 2,
"formula": "doac_score",
"citation": {
"id": "aggarwal-2023",
"doi": "10.1161/CIRCULATIONAHA.123.064556",
"pmid": "37621213",
"title": "Development and Validation of the DOAC Score: A Novel Bleeding Risk Prediction Tool for Patients With Atrial Fibrillation on Direct-Acting Oral Anticoagulants",
"source": "Circulation. 2023;148(12):936-946",
"authors": "Aggarwal R, Ruff CT, Virdone S, Perreault S, Kakkar AK, Palazzolo MG, Dorais M, Kayani G, Singer DE, Secemsky E, Piccini J, Tahir UA, Shen C, Yeh RW"
},
"age_years": 65,
"max_score": 10,
"components": [
{
"value": 65,
"factor": "age",
"points": 2,
"present": true
},
{
"value": 70,
"factor": "crcl_or_egfr",
"points": 0,
"present": false
},
{
"factor": "underweight",
"points": 0,
"present": false
},
{
"factor": "stroke_tia_embolism_history",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 0,
"present": false
},
{
"factor": "hypertension",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "antiplatelet",
"points": 0,
"present": false
},
{
"factor": "nsaid_use",
"points": 0,
"present": false
},
{
"factor": "bleeding_history",
"points": 0,
"present": false
},
{
"factor": "liver_disease",
"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.",
"antiplatelet": "none",
"uncapped_sum": 2,
"formula_expression": "DOAC Score (Aggarwal 2023 Circulation Table 2) = age (65-69 2, 70-74 3, 75-79 4, >=80 5; <65 0) + crcl_or_egfr_ml_min (30-60 inclusive 1, <30 2, >60 0) + underweight 1 + stroke_tia_embolism_history 1 + diabetes 1 + hypertension 1 + antiplatelet (none 0, aspirin 2, dual 3) + nsaid_use 1 + bleeding_history 3 + liver_disease 2; score = min(raw_sum, 10); bands 0-3 very_low, 4-5 low, 6-7 moderate, 8-9 high, 10 very_high; not HAS-BLED; not DOAC dosing; not warfarin",
"crcl_or_egfr_ml_min": 70
}
]
}
},
"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",
"crcl_or_egfr_ml_min",
"underweight",
"stroke_tia_embolism_history",
"diabetes",
"hypertension",
"antiplatelet",
"nsaid_use",
"bleeding_history",
"liver_disease"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). Table 2: 65-69 scores 2; 70-74 scores 3; 75-79 scores 4; ≥80 scores 5; age <65 scores 0 and is accepted."
},
"diabetes": {
"type": "boolean",
"description": "Diabetes as assigned by the caller. true or false. Scores 1."
},
"nsaid_use": {
"type": "boolean",
"description": "NSAID use as assigned by the caller. true or false. Scores 1."
},
"underweight": {
"type": "boolean",
"description": "Caller-assigned BMI <18.5 kg/m² (Table 2 underweight). true or false. Scores 1. magent does not compute BMI."
},
"antiplatelet": {
"enum": [
"none",
"aspirin",
"dual"
],
"type": "string",
"description": "Antiplatelet use: none (0), aspirin (2), or dual (aspirin + P2Y12; 3). Table 2."
},
"hypertension": {
"type": "boolean",
"description": "Hypertension as assigned by the caller. true or false. Scores 1."
},
"liver_disease": {
"type": "boolean",
"description": "Liver disease as assigned by the caller (Table 2 footnote: AST, ALT, or ALP ≥3× ULN, ALP ≥2× ULN, or cirrhosis). true or false. Scores 2. magent does not assay labs or assign Child-Pugh."
},
"bleeding_history": {
"type": "boolean",
"description": "Bleeding history as assigned by the caller. true or false. Scores 3."
},
"crcl_or_egfr_ml_min": {
"type": "number",
"description": "Creatinine clearance or eGFR in mL/min (5-200). Table 2: 30-60 inclusive scores 1; <30 scores 2; >60 scores 0. Exactly 30 and exactly 60 score 1."
},
"stroke_tia_embolism_history": {
"type": "boolean",
"description": "History of stroke, TIA, or embolism as assigned by the caller. true or false. Scores 1."
}
}
},
"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 13:01Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 10:15Z
- 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. 10 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/doac_score, 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.