magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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_diabetes",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
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"network": "eip155:8453",
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{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
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"amount": "5000",
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],
"resource": {
"url": "https://api.magentlab.com/api/calc/score2_diabetes",
"tags": [
"score2-diabetes",
"cvd-risk",
"type-2-diabetes",
"esc-2023",
"europe"
],
"mimeType": "application/json",
"description": "ESC 2023 SCORE2-Diabetes 10-year fatal plus non-fatal CVD percent for type 2 diabetes, age 40-79, from sex, smoking, systolic BP, total and HDL cholesterol, age at diagnosis, IFCC HbA1c, eGFR, and European geographic risk region. Not SCORE2, not SCORE2-OP, not a diagnosis or statin order. magent does not assay lipids, HbA1c, or eGFR.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 60,
"sex": "male",
"smoker": false,
"sbp_mm_hg": 140,
"hdl_mmol_l": 1.3,
"hba1c_mmol_mol": 50,
"egfr_ml_min_1_73m2": 90,
"european_risk_region": "moderate",
"total_cholesterol_mmol_l": 5.5,
"age_at_diabetes_diagnosis": 60
}
},
"output": {
"type": "json",
"example": {
"age": 60,
"sex": "male",
"smoker": false,
"formula": "score2_diabetes",
"citation": {
"id": "score2-diabetes-2023",
"doi": "10.1093/eurheartj/ehad260",
"pmid": "37247330",
"title": "SCORE2-Diabetes: 10-year cardiovascular risk estimation in type 2 diabetes in Europe",
"source": "Eur Heart J. 2023;44(28):2544-2556",
"authors": "SCORE2-Diabetes 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,
"hba1c_mmol_mol": 50,
"linear_predictor": 0.7175,
"risk_10y_percent": 11,
"egfr_ml_min_1_73m2": 90,
"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; ctc=(TC-6)/1; chdl=(HDL-1.3)/0.5; cdiabage=(age_at_dx-50)/5; chba1c=(HbA1c_mmol_mol-31)/9.34; cegfr=(ln(eGFR)-4.5)/0.15; diabetes=1; men S0=0.9605 lp=0.5368*cage+0.4774*smoke+0.1322*csbp+0.6457*diabetes+0.1102*ctc-0.1087*chdl-0.0672*cage*smoke-0.0268*cage*csbp-0.0983*cage*diabetes-0.0181*cage*ctc+0.0095*cage*chdl-0.0998*diabetes*cdiabage+0.0955*chba1c-0.0591*cegfr+0.0058*cegfr^2-0.0134*cage*chba1c+0.0115*cage*cegfr; women S0=0.9776 lp=0.6624*cage+0.6139*smoke+0.1421*csbp+0.8096*diabetes+0.1127*ctc-0.1568*chdl-0.1122*cage*smoke-0.0167*cage*csbp-0.1272*cage*diabetes-0.0200*cage*ctc+0.0186*cage*chdl-0.118*diabetes*cdiabage+0.1173*chba1c-0.0640*cegfr+0.0062*cegfr^2-0.0196*cage*chba1c+0.0169*cage*cegfr; region scale1/scale2 SCORE2 age<70 and SCORE2-OP age 70-79; age 40-79; type 2 diabetes only; geographic region not race; not SCORE2; not SCORE2-OP",
"european_risk_region": "moderate",
"total_cholesterol_mmol_l": 5.5,
"age_at_diabetes_diagnosis": 60
}
},
"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",
"total_cholesterol_mmol_l",
"hdl_mmol_l",
"age_at_diabetes_diagnosis",
"hba1c_mmol_mol",
"egfr_ml_min_1_73m2",
"european_risk_region"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (integer 40-79). SCORE2-Diabetes 2023 is for ages 40-79. Not SCORE2 (40-69 without diabetes labs). Not SCORE2-OP."
},
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex used by the sex-specific SCORE2-Diabetes 2023 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."
},
"hdl_mmol_l": {
"type": "number",
"description": "HDL cholesterol in mmol/L (0.4-4). Enters as (HDL-1.3)/0.5. magent does not assay lipids."
},
"hba1c_mmol_mol": {
"type": "number",
"description": "HbA1c in IFCC mmol/mol (20-195), not % DCCT. Enters as (HbA1c-31)/9.34. magent does not assay HbA1c."
},
"egfr_ml_min_1_73m2": {
"type": "number",
"description": "Caller-assigned eGFR in mL/min/1.73 m² (5-200). Enters as (ln(eGFR)-4.5)/0.15 plus the squared term. magent does not compute CKD-EPI."
},
"european_risk_region": {
"enum": [
"low",
"moderate",
"high",
"very_high"
],
"type": "string",
"description": "Geographic SCORE2/SCORE2-OP calibration region (low, moderate, high, or very_high) as printed for SCORE2-Diabetes. Not race. Not ethnicity."
},
"total_cholesterol_mmol_l": {
"type": "number",
"description": "Total cholesterol in mmol/L (1.5-15). Enters as (TC-6). magent does not assay lipids."
},
"age_at_diabetes_diagnosis": {
"type": "integer",
"description": "Age at type 2 diabetes diagnosis in years (integer 1-79, not after current age). Enters as (age_at_dx-50)/5. Patient is assumed to have type 2 diabetes."
}
}
}
},
"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.
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_diabetes",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 60,
"sex": "male",
"smoker": false,
"sbp_mm_hg": 140,
"hdl_mmol_l": 1.3,
"hba1c_mmol_mol": 50,
"egfr_ml_min_1_73m2": 90,
"european_risk_region": "moderate",
"total_cholesterol_mmol_l": 5.5,
"age_at_diabetes_diagnosis": 60
},
{
"age": 60,
"sex": "male",
"smoker": false,
"sbp_mm_hg": 140,
"hdl_mmol_l": 1.3,
"hba1c_mmol_mol": 50,
"egfr_ml_min_1_73m2": 90,
"european_risk_region": "moderate",
"total_cholesterol_mmol_l": 5.5,
"age_at_diabetes_diagnosis": 60
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/score2_diabetes",
"count": 2,
"items": [
{
"age": 60,
"sex": "male",
"smoker": false,
"formula": "score2_diabetes",
"citation": {
"id": "score2-diabetes-2023",
"doi": "10.1093/eurheartj/ehad260",
"pmid": "37247330",
"title": "SCORE2-Diabetes: 10-year cardiovascular risk estimation in type 2 diabetes in Europe",
"source": "Eur Heart J. 2023;44(28):2544-2556",
"authors": "SCORE2-Diabetes 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,
"hba1c_mmol_mol": 50,
"linear_predictor": 0.7175,
"risk_10y_percent": 11,
"egfr_ml_min_1_73m2": 90,
"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; ctc=(TC-6)/1; chdl=(HDL-1.3)/0.5; cdiabage=(age_at_dx-50)/5; chba1c=(HbA1c_mmol_mol-31)/9.34; cegfr=(ln(eGFR)-4.5)/0.15; diabetes=1; men S0=0.9605 lp=0.5368*cage+0.4774*smoke+0.1322*csbp+0.6457*diabetes+0.1102*ctc-0.1087*chdl-0.0672*cage*smoke-0.0268*cage*csbp-0.0983*cage*diabetes-0.0181*cage*ctc+0.0095*cage*chdl-0.0998*diabetes*cdiabage+0.0955*chba1c-0.0591*cegfr+0.0058*cegfr^2-0.0134*cage*chba1c+0.0115*cage*cegfr; women S0=0.9776 lp=0.6624*cage+0.6139*smoke+0.1421*csbp+0.8096*diabetes+0.1127*ctc-0.1568*chdl-0.1122*cage*smoke-0.0167*cage*csbp-0.1272*cage*diabetes-0.0200*cage*ctc+0.0186*cage*chdl-0.118*diabetes*cdiabage+0.1173*chba1c-0.0640*cegfr+0.0062*cegfr^2-0.0196*cage*chba1c+0.0169*cage*cegfr; region scale1/scale2 SCORE2 age<70 and SCORE2-OP age 70-79; age 40-79; type 2 diabetes only; geographic region not race; not SCORE2; not SCORE2-OP",
"european_risk_region": "moderate",
"total_cholesterol_mmol_l": 5.5,
"age_at_diabetes_diagnosis": 60
},
{
"age": 60,
"sex": "male",
"smoker": false,
"formula": "score2_diabetes",
"citation": {
"id": "score2-diabetes-2023",
"doi": "10.1093/eurheartj/ehad260",
"pmid": "37247330",
"title": "SCORE2-Diabetes: 10-year cardiovascular risk estimation in type 2 diabetes in Europe",
"source": "Eur Heart J. 2023;44(28):2544-2556",
"authors": "SCORE2-Diabetes 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,
"hba1c_mmol_mol": 50,
"linear_predictor": 0.7175,
"risk_10y_percent": 11,
"egfr_ml_min_1_73m2": 90,
"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; ctc=(TC-6)/1; chdl=(HDL-1.3)/0.5; cdiabage=(age_at_dx-50)/5; chba1c=(HbA1c_mmol_mol-31)/9.34; cegfr=(ln(eGFR)-4.5)/0.15; diabetes=1; men S0=0.9605 lp=0.5368*cage+0.4774*smoke+0.1322*csbp+0.6457*diabetes+0.1102*ctc-0.1087*chdl-0.0672*cage*smoke-0.0268*cage*csbp-0.0983*cage*diabetes-0.0181*cage*ctc+0.0095*cage*chdl-0.0998*diabetes*cdiabage+0.0955*chba1c-0.0591*cegfr+0.0058*cegfr^2-0.0134*cage*chba1c+0.0115*cage*cegfr; women S0=0.9776 lp=0.6624*cage+0.6139*smoke+0.1421*csbp+0.8096*diabetes+0.1127*ctc-0.1568*chdl-0.1122*cage*smoke-0.0167*cage*csbp-0.1272*cage*diabetes-0.0200*cage*ctc+0.0186*cage*chdl-0.118*diabetes*cdiabage+0.1173*chba1c-0.0640*cegfr+0.0062*cegfr^2-0.0196*cage*chba1c+0.0169*cage*cegfr; region scale1/scale2 SCORE2 age<70 and SCORE2-OP age 70-79; age 40-79; type 2 diabetes only; geographic region not race; not SCORE2; not SCORE2-OP",
"european_risk_region": "moderate",
"total_cholesterol_mmol_l": 5.5,
"age_at_diabetes_diagnosis": 60
}
]
}
},
"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",
"total_cholesterol_mmol_l",
"hdl_mmol_l",
"age_at_diabetes_diagnosis",
"hba1c_mmol_mol",
"egfr_ml_min_1_73m2",
"european_risk_region"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (integer 40-79). SCORE2-Diabetes 2023 is for ages 40-79. Not SCORE2 (40-69 without diabetes labs). Not SCORE2-OP."
},
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex used by the sex-specific SCORE2-Diabetes 2023 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."
},
"hdl_mmol_l": {
"type": "number",
"description": "HDL cholesterol in mmol/L (0.4-4). Enters as (HDL-1.3)/0.5. magent does not assay lipids."
},
"hba1c_mmol_mol": {
"type": "number",
"description": "HbA1c in IFCC mmol/mol (20-195), not % DCCT. Enters as (HbA1c-31)/9.34. magent does not assay HbA1c."
},
"egfr_ml_min_1_73m2": {
"type": "number",
"description": "Caller-assigned eGFR in mL/min/1.73 m² (5-200). Enters as (ln(eGFR)-4.5)/0.15 plus the squared term. magent does not compute CKD-EPI."
},
"european_risk_region": {
"enum": [
"low",
"moderate",
"high",
"very_high"
],
"type": "string",
"description": "Geographic SCORE2/SCORE2-OP calibration region (low, moderate, high, or very_high) as printed for SCORE2-Diabetes. Not race. Not ethnicity."
},
"total_cholesterol_mmol_l": {
"type": "number",
"description": "Total cholesterol in mmol/L (1.5-15). Enters as (TC-6). magent does not assay lipids."
},
"age_at_diabetes_diagnosis": {
"type": "integer",
"description": "Age at type 2 diabetes diagnosis in years (integer 1-79, not after current age). Enters as (age_at_dx-50)/5. Patient is assumed to have type 2 diabetes."
}
}
},
"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 02:13Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 18:46Z
- 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_diabetes, 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.