magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Mediaofflineeip155:8453Exactvia cdp
HypoglycemiaKarterDiabetesT2dCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 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 04:40Z
—
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/hypoglycemia_risk_score",
"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/hypoglycemia_risk_score",
"tags": [
"hypoglycemia",
"karter",
"diabetes",
"t2d",
"calculator"
],
"mimeType": "application/json",
"description": "Karter 2017 Figure 2 T2D 12-month hypoglycemia-related ED/hospital-use risk from prior_hypo_ed_hospital_count (0-20), ed_visits_12mo (0-50), insulin, sulfonylurea, severe_or_esrd (dialysis or CKD 4-5, eGFR <=29), and age_lt_77. First-match 6 options: >=3 prior or 1-2 plus insulin = high (>5%); remaining rows intermediate (1-5%) or low (<1%). Not a points sum. magent does not assay glucose. Not a diagnosis. Not an insulin dose.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"insulin": false,
"age_lt_77": true,
"sulfonylurea": false,
"ed_visits_12mo": 0,
"severe_or_esrd": false,
"prior_hypo_ed_hospital_count": 3
}
},
"output": {
"type": "json",
"example": {
"risk": "high",
"formula": "hypoglycemia_risk_score",
"insulin": false,
"citation": {
"id": "karter-2017",
"doi": "10.1001/jamainternmed.2017.3844",
"pmid": "28828479",
"title": "Development and Validation of a Tool to Identify Patients With Type 2 Diabetes at High Risk of Hypoglycemia-Related Emergency Department or Hospital Use",
"source": "JAMA Intern Med. 2017;177(10):1461-1470",
"authors": "Karter AJ, Warton EM, Lipska KJ, Ralston JD, Moffet HH, Jackson GG, Huang ES, Miller DR"
},
"criteria": [
{
"met": true,
"value": 3,
"factor": "prior_hypo_ge_3"
},
{
"met": false,
"value": 3,
"factor": "prior_hypo_1_or_2"
},
{
"met": false,
"factor": "insulin"
},
{
"met": false,
"factor": "sulfonylurea"
},
{
"met": false,
"value": 0,
"factor": "ed_visits_ge_2"
},
{
"met": false,
"factor": "severe_or_esrd"
},
{
"met": true,
"factor": "age_lt_77"
}
],
"age_lt_77": true,
"rate_band": ">5%",
"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.",
"sulfonylurea": false,
"ed_visits_12mo": 0,
"ed_visits_band": "lt_2",
"figure2_option": 1,
"severe_or_esrd": false,
"prior_hypo_band": "ge_3",
"formula_expression": "hypoglycemia_risk_score first-match Karter 2017 Figure 2 (6 mutually exclusive options; eTable 2 source): (1) prior_hypo_ed_hospital_count >= 3 -> high; (2) prior 1-2 and insulin -> high; (3) prior 1-2 and not insulin -> intermediate; (4) prior 0 and insulin and (ed_visits_12mo >= 2 or severe_or_esrd or not age_lt_77) -> intermediate; (5) prior 0 and not insulin and sulfonylurea and (ed_visits_12mo >= 2 or severe_or_esrd) -> intermediate; (6) else -> low. high >5%, intermediate 1-5%, low <1% 12-month hypoglycemia-related ED/hospital use. T2D only. Not a points sum. magent does not assay glucose. Not a diagnosis. Not an insulin dose",
"prior_hypo_ed_hospital_count": 3
}
},
"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": [
"prior_hypo_ed_hospital_count",
"ed_visits_12mo",
"insulin",
"sulfonylurea",
"severe_or_esrd",
"age_lt_77"
],
"properties": {
"insulin": {
"type": "boolean",
"description": "Current insulin use as assigned by the caller (Karter 2017 Figure 2). true or false. With 1-2 prior hypoglycemia-related ED or hospital episodes, insulin is high; with 0 prior episodes, insulin plus ED visits >=2, severe_or_esrd, or age not <77 is intermediate. Not an insulin dose."
},
"age_lt_77": {
"type": "boolean",
"description": "Age younger than 77 years as assigned by the caller (Karter 2017 Figure 2). true or false. When prior episodes are 0 and insulin is true, age not <77 (with ED visits <2 and severe_or_esrd false) is intermediate. magent does not compute age."
},
"sulfonylurea": {
"type": "boolean",
"description": "Current sulfonylurea use as assigned by the caller (Karter 2017 Figure 2). true or false. With 0 prior episodes and no insulin, sulfonylurea plus ED visits >=2 or severe_or_esrd is intermediate. magent does not dispense medication."
},
"ed_visits_12mo": {
"type": "integer",
"description": "ED encounters for any reason in the prior 12 months (integer 0-50). Karter 2017 Figure 2 bands: <2 vs >=2. magent does not count visits."
},
"severe_or_esrd": {
"type": "boolean",
"description": "Severe or end-stage kidney disease as assigned by the caller (Karter 2017: dialysis or CKD stage 4-5, eGFR <=29 mL/min/1.73 m2). true or false. magent does not compute eGFR."
},
"prior_hypo_ed_hospital_count": {
"type": "integer",
"description": "Count of prior hypoglycemia-related ED visits or hospitalizations (integer 0-20). Karter 2017 Figure 2 bands: 0, 1-2, or >=3. >=3 is high regardless of other inputs. magent does not read claims."
}
}
}
},
"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/hypoglycemia_risk_score",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"insulin": false,
"age_lt_77": true,
"sulfonylurea": false,
"ed_visits_12mo": 0,
"severe_or_esrd": false,
"prior_hypo_ed_hospital_count": 3
},
{
"insulin": false,
"age_lt_77": true,
"sulfonylurea": false,
"ed_visits_12mo": 0,
"severe_or_esrd": false,
"prior_hypo_ed_hospital_count": 3
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/hypoglycemia_risk_score",
"count": 2,
"items": [
{
"risk": "high",
"formula": "hypoglycemia_risk_score",
"insulin": false,
"citation": {
"id": "karter-2017",
"doi": "10.1001/jamainternmed.2017.3844",
"pmid": "28828479",
"title": "Development and Validation of a Tool to Identify Patients With Type 2 Diabetes at High Risk of Hypoglycemia-Related Emergency Department or Hospital Use",
"source": "JAMA Intern Med. 2017;177(10):1461-1470",
"authors": "Karter AJ, Warton EM, Lipska KJ, Ralston JD, Moffet HH, Jackson GG, Huang ES, Miller DR"
},
"criteria": [
{
"met": true,
"value": 3,
"factor": "prior_hypo_ge_3"
},
{
"met": false,
"value": 3,
"factor": "prior_hypo_1_or_2"
},
{
"met": false,
"factor": "insulin"
},
{
"met": false,
"factor": "sulfonylurea"
},
{
"met": false,
"value": 0,
"factor": "ed_visits_ge_2"
},
{
"met": false,
"factor": "severe_or_esrd"
},
{
"met": true,
"factor": "age_lt_77"
}
],
"age_lt_77": true,
"rate_band": ">5%",
"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.",
"sulfonylurea": false,
"ed_visits_12mo": 0,
"ed_visits_band": "lt_2",
"figure2_option": 1,
"severe_or_esrd": false,
"prior_hypo_band": "ge_3",
"formula_expression": "hypoglycemia_risk_score first-match Karter 2017 Figure 2 (6 mutually exclusive options; eTable 2 source): (1) prior_hypo_ed_hospital_count >= 3 -> high; (2) prior 1-2 and insulin -> high; (3) prior 1-2 and not insulin -> intermediate; (4) prior 0 and insulin and (ed_visits_12mo >= 2 or severe_or_esrd or not age_lt_77) -> intermediate; (5) prior 0 and not insulin and sulfonylurea and (ed_visits_12mo >= 2 or severe_or_esrd) -> intermediate; (6) else -> low. high >5%, intermediate 1-5%, low <1% 12-month hypoglycemia-related ED/hospital use. T2D only. Not a points sum. magent does not assay glucose. Not a diagnosis. Not an insulin dose",
"prior_hypo_ed_hospital_count": 3
},
{
"risk": "high",
"formula": "hypoglycemia_risk_score",
"insulin": false,
"citation": {
"id": "karter-2017",
"doi": "10.1001/jamainternmed.2017.3844",
"pmid": "28828479",
"title": "Development and Validation of a Tool to Identify Patients With Type 2 Diabetes at High Risk of Hypoglycemia-Related Emergency Department or Hospital Use",
"source": "JAMA Intern Med. 2017;177(10):1461-1470",
"authors": "Karter AJ, Warton EM, Lipska KJ, Ralston JD, Moffet HH, Jackson GG, Huang ES, Miller DR"
},
"criteria": [
{
"met": true,
"value": 3,
"factor": "prior_hypo_ge_3"
},
{
"met": false,
"value": 3,
"factor": "prior_hypo_1_or_2"
},
{
"met": false,
"factor": "insulin"
},
{
"met": false,
"factor": "sulfonylurea"
},
{
"met": false,
"value": 0,
"factor": "ed_visits_ge_2"
},
{
"met": false,
"factor": "severe_or_esrd"
},
{
"met": true,
"factor": "age_lt_77"
}
],
"age_lt_77": true,
"rate_band": ">5%",
"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.",
"sulfonylurea": false,
"ed_visits_12mo": 0,
"ed_visits_band": "lt_2",
"figure2_option": 1,
"severe_or_esrd": false,
"prior_hypo_band": "ge_3",
"formula_expression": "hypoglycemia_risk_score first-match Karter 2017 Figure 2 (6 mutually exclusive options; eTable 2 source): (1) prior_hypo_ed_hospital_count >= 3 -> high; (2) prior 1-2 and insulin -> high; (3) prior 1-2 and not insulin -> intermediate; (4) prior 0 and insulin and (ed_visits_12mo >= 2 or severe_or_esrd or not age_lt_77) -> intermediate; (5) prior 0 and not insulin and sulfonylurea and (ed_visits_12mo >= 2 or severe_or_esrd) -> intermediate; (6) else -> low. high >5%, intermediate 1-5%, low <1% 12-month hypoglycemia-related ED/hospital use. T2D only. Not a points sum. magent does not assay glucose. Not a diagnosis. Not an insulin dose",
"prior_hypo_ed_hospital_count": 3
}
]
}
},
"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": [
"prior_hypo_ed_hospital_count",
"ed_visits_12mo",
"insulin",
"sulfonylurea",
"severe_or_esrd",
"age_lt_77"
],
"properties": {
"insulin": {
"type": "boolean",
"description": "Current insulin use as assigned by the caller (Karter 2017 Figure 2). true or false. With 1-2 prior hypoglycemia-related ED or hospital episodes, insulin is high; with 0 prior episodes, insulin plus ED visits >=2, severe_or_esrd, or age not <77 is intermediate. Not an insulin dose."
},
"age_lt_77": {
"type": "boolean",
"description": "Age younger than 77 years as assigned by the caller (Karter 2017 Figure 2). true or false. When prior episodes are 0 and insulin is true, age not <77 (with ED visits <2 and severe_or_esrd false) is intermediate. magent does not compute age."
},
"sulfonylurea": {
"type": "boolean",
"description": "Current sulfonylurea use as assigned by the caller (Karter 2017 Figure 2). true or false. With 0 prior episodes and no insulin, sulfonylurea plus ED visits >=2 or severe_or_esrd is intermediate. magent does not dispense medication."
},
"ed_visits_12mo": {
"type": "integer",
"description": "ED encounters for any reason in the prior 12 months (integer 0-50). Karter 2017 Figure 2 bands: <2 vs >=2. magent does not count visits."
},
"severe_or_esrd": {
"type": "boolean",
"description": "Severe or end-stage kidney disease as assigned by the caller (Karter 2017: dialysis or CKD stage 4-5, eGFR <=29 mL/min/1.73 m2). true or false. magent does not compute eGFR."
},
"prior_hypo_ed_hospital_count": {
"type": "integer",
"description": "Count of prior hypoglycemia-related ED visits or hospitalizations (integer 0-20). Karter 2017 Figure 2 bands: 0, 1-2, or >=3. >=3 is high regardless of other inputs. magent does not read claims."
}
}
},
"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 04:40Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 20:15Z
- 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. 8 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/hypoglycemia_risk_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.