magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
Score2Cvd-riskLipidsEsc-2021Europe
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 2026-09-03 00:13Z
—
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/score2",
"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/score2",
"tags": [
"score2",
"cvd-risk",
"lipids",
"esc-2021",
"europe"
],
"mimeType": "application/json",
"description": "ESC 2021 SCORE2 10-year fatal plus non-fatal CVD percent for age 40-69 from sex, current smoking, systolic BP, non-HDL cholesterol, and European geographic risk region (low, moderate, high, very_high). Published sex-specific coefficients and region scale1/scale2. Not SCORE2-OP, not SCORE2-Diabetes, not 2013 PCE, not Reynolds, not a diagnosis or statin order. magent does not assay lipids.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 50,
"sex": "male",
"smoker": true,
"sbp_mm_hg": 140,
"non_hdl_mmol_l": 4.2,
"european_risk_region": "low"
}
},
"output": {
"type": "json",
"example": {
"age": 50,
"sex": "male",
"smoker": true,
"formula": "score2",
"citation": {
"id": "score2-2021",
"doi": "10.1093/eurheartj/ehab309",
"pmid": "34120177",
"title": "SCORE2 risk prediction algorithms: new models to estimate 10-year risk of cardiovascular disease in Europe",
"source": "Eur Heart J. 2021;42(25):2439-2454",
"authors": "SCORE2 working group and ESC Cardiovascular risk collaboration"
},
"sbp_mm_hg": 140,
"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.",
"hdl_mmol_l": 1.3,
"non_hdl_mmol_l": 4.2,
"linear_predictor": 0.2315,
"risk_10y_percent": 5.9,
"formula_expression": "10-year fatal+non-fatal CVD % = 100*(1-exp(-exp(scale1+scale2*ln(-ln(1-uncal))))); uncal=1-S0^exp(lp); cage=(age-60)/5; csbp=(SBP-120)/20; charts display non-HDL mmol/L; equation uses TC and HDL at paper HDL centering 1.3 so TC=non-HDL+1.3, ctchol=(TC-6)/1, chdl=0; diabetes terms omitted (not SCORE2-Diabetes); men S0=0.9605 lp=0.3742*cage+0.6012*smoke+0.2777*csbp+0.1458*ctchol-0.2698*chdl-0.0755*cage*smoke-0.0255*cage*csbp-0.0281*cage*ctchol+0.0426*cage*chdl; women S0=0.9776 lp=0.4648*cage+0.7744*smoke+0.3131*csbp+0.1002*ctchol-0.2606*chdl-0.1088*cage*smoke-0.0277*cage*csbp-0.0226*cage*ctchol+0.0613*cage*chdl; region (scale1,scale2) men low (-0.5699,0.7476) moderate (-0.1565,0.8009) high (0.3207,0.9360) very_high (0.5836,0.8294); women low (-0.7380,0.7019) moderate (-0.3143,0.7701) high (0.5710,0.9369) very_high (0.9412,0.8329); SCORE2 2021 four-decimal coefficients (updated supplement Table 1); age 40-69; geographic region not race; not SCORE2-OP; not 2013 PCE",
"european_risk_region": "low",
"total_cholesterol_mmol_l": 5.5
}
},
"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",
"sex",
"smoker",
"sbp_mm_hg",
"non_hdl_mmol_l",
"european_risk_region"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (integer 40-69). SCORE2 2021 is for ages 40-69. Not SCORE2-OP (age 70 or older)."
},
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex used by the sex-specific SCORE2 2021 coefficients (female or male)."
},
"smoker": {
"type": "boolean",
"description": "Current cigarette smoking as assigned by the caller (true or false). magent does not take a smoking history."
},
"sbp_mm_hg": {
"type": "number",
"description": "Systolic blood pressure in mm Hg (50-250). Enters as (SBP-120)/20. magent does not measure blood pressure."
},
"non_hdl_mmol_l": {
"type": "number",
"description": "Non-HDL cholesterol in mmol/L (1-12). SCORE2 charts display non-HDL. The published equation uses TC and HDL at the paper HDL centering 1.3 mmol/L (TC = non-HDL + 1.3). The printed 50-year-old example is TC 5.5 and HDL 1.3 (non-HDL 4.2). magent does not assay lipids."
},
"european_risk_region": {
"enum": [
"low",
"moderate",
"high",
"very_high"
],
"type": "string",
"description": "Geographic SCORE2 2021 calibration region (low, moderate, high, or very_high) as printed in that paper. Not race. Not ethnicity."
}
}
}
},
"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/score2",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 50,
"sex": "male",
"smoker": true,
"sbp_mm_hg": 140,
"non_hdl_mmol_l": 4.2,
"european_risk_region": "low"
},
{
"age": 50,
"sex": "male",
"smoker": true,
"sbp_mm_hg": 140,
"non_hdl_mmol_l": 4.2,
"european_risk_region": "low"
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/score2",
"count": 2,
"items": [
{
"age": 50,
"sex": "male",
"smoker": true,
"formula": "score2",
"citation": {
"id": "score2-2021",
"doi": "10.1093/eurheartj/ehab309",
"pmid": "34120177",
"title": "SCORE2 risk prediction algorithms: new models to estimate 10-year risk of cardiovascular disease in Europe",
"source": "Eur Heart J. 2021;42(25):2439-2454",
"authors": "SCORE2 working group and ESC Cardiovascular risk collaboration"
},
"sbp_mm_hg": 140,
"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.",
"hdl_mmol_l": 1.3,
"non_hdl_mmol_l": 4.2,
"linear_predictor": 0.2315,
"risk_10y_percent": 5.9,
"formula_expression": "10-year fatal+non-fatal CVD % = 100*(1-exp(-exp(scale1+scale2*ln(-ln(1-uncal))))); uncal=1-S0^exp(lp); cage=(age-60)/5; csbp=(SBP-120)/20; charts display non-HDL mmol/L; equation uses TC and HDL at paper HDL centering 1.3 so TC=non-HDL+1.3, ctchol=(TC-6)/1, chdl=0; diabetes terms omitted (not SCORE2-Diabetes); men S0=0.9605 lp=0.3742*cage+0.6012*smoke+0.2777*csbp+0.1458*ctchol-0.2698*chdl-0.0755*cage*smoke-0.0255*cage*csbp-0.0281*cage*ctchol+0.0426*cage*chdl; women S0=0.9776 lp=0.4648*cage+0.7744*smoke+0.3131*csbp+0.1002*ctchol-0.2606*chdl-0.1088*cage*smoke-0.0277*cage*csbp-0.0226*cage*ctchol+0.0613*cage*chdl; region (scale1,scale2) men low (-0.5699,0.7476) moderate (-0.1565,0.8009) high (0.3207,0.9360) very_high (0.5836,0.8294); women low (-0.7380,0.7019) moderate (-0.3143,0.7701) high (0.5710,0.9369) very_high (0.9412,0.8329); SCORE2 2021 four-decimal coefficients (updated supplement Table 1); age 40-69; geographic region not race; not SCORE2-OP; not 2013 PCE",
"european_risk_region": "low",
"total_cholesterol_mmol_l": 5.5
},
{
"age": 50,
"sex": "male",
"smoker": true,
"formula": "score2",
"citation": {
"id": "score2-2021",
"doi": "10.1093/eurheartj/ehab309",
"pmid": "34120177",
"title": "SCORE2 risk prediction algorithms: new models to estimate 10-year risk of cardiovascular disease in Europe",
"source": "Eur Heart J. 2021;42(25):2439-2454",
"authors": "SCORE2 working group and ESC Cardiovascular risk collaboration"
},
"sbp_mm_hg": 140,
"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.",
"hdl_mmol_l": 1.3,
"non_hdl_mmol_l": 4.2,
"linear_predictor": 0.2315,
"risk_10y_percent": 5.9,
"formula_expression": "10-year fatal+non-fatal CVD % = 100*(1-exp(-exp(scale1+scale2*ln(-ln(1-uncal))))); uncal=1-S0^exp(lp); cage=(age-60)/5; csbp=(SBP-120)/20; charts display non-HDL mmol/L; equation uses TC and HDL at paper HDL centering 1.3 so TC=non-HDL+1.3, ctchol=(TC-6)/1, chdl=0; diabetes terms omitted (not SCORE2-Diabetes); men S0=0.9605 lp=0.3742*cage+0.6012*smoke+0.2777*csbp+0.1458*ctchol-0.2698*chdl-0.0755*cage*smoke-0.0255*cage*csbp-0.0281*cage*ctchol+0.0426*cage*chdl; women S0=0.9776 lp=0.4648*cage+0.7744*smoke+0.3131*csbp+0.1002*ctchol-0.2606*chdl-0.1088*cage*smoke-0.0277*cage*csbp-0.0226*cage*ctchol+0.0613*cage*chdl; region (scale1,scale2) men low (-0.5699,0.7476) moderate (-0.1565,0.8009) high (0.3207,0.9360) very_high (0.5836,0.8294); women low (-0.7380,0.7019) moderate (-0.3143,0.7701) high (0.5710,0.9369) very_high (0.9412,0.8329); SCORE2 2021 four-decimal coefficients (updated supplement Table 1); age 40-69; geographic region not race; not SCORE2-OP; not 2013 PCE",
"european_risk_region": "low",
"total_cholesterol_mmol_l": 5.5
}
]
}
},
"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",
"sex",
"smoker",
"sbp_mm_hg",
"non_hdl_mmol_l",
"european_risk_region"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (integer 40-69). SCORE2 2021 is for ages 40-69. Not SCORE2-OP (age 70 or older)."
},
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex used by the sex-specific SCORE2 2021 coefficients (female or male)."
},
"smoker": {
"type": "boolean",
"description": "Current cigarette smoking as assigned by the caller (true or false). magent does not take a smoking history."
},
"sbp_mm_hg": {
"type": "number",
"description": "Systolic blood pressure in mm Hg (50-250). Enters as (SBP-120)/20. magent does not measure blood pressure."
},
"non_hdl_mmol_l": {
"type": "number",
"description": "Non-HDL cholesterol in mmol/L (1-12). SCORE2 charts display non-HDL. The published equation uses TC and HDL at the paper HDL centering 1.3 mmol/L (TC = non-HDL + 1.3). The printed 50-year-old example is TC 5.5 and HDL 1.3 (non-HDL 4.2). magent does not assay lipids."
},
"european_risk_region": {
"enum": [
"low",
"moderate",
"high",
"very_high"
],
"type": "string",
"description": "Geographic SCORE2 2021 calibration region (low, moderate, high, or very_high) as printed in that paper. Not race. Not ethnicity."
}
}
},
"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
- 2026-09-03 00:13Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 16:46Z
- 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. 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/score2, 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.