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/dka_mpm",
"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/dka_mpm",
"tags": [
"dka-mpm",
"dka",
"ketoacidosis",
"mortality",
"calculator"
],
"mimeType": "application/json",
"description": "Efstathiou 2002 DKA-MPM. Six caller-assigned flags: severe coexisting disease at presentation (+6), pH <7.0 at presentation (+4), regular insulin >50 IU in the first 12 h (+4), glucose >16.7 mmol/L after 12 h (+4), depressed mental state after 24 h (+4), fever after 24 h (+3). Max 25. Published in-hospital death 0.86% for scores 0–14 and 93.3% for 19–25; scores 15–18 return the total only. magent does not assay pH or glucose. Not a DKA treatment or insulin-dose order. Not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ph_lt_7": false,
"fever_24h": false,
"insulin_gt_50_12h": false,
"severe_comorbidity": false,
"glucose_gt_16_7_12h": false,
"depressed_mental_24h": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "dka_mpm",
"citation": {
"id": "efstathiou-2002",
"doi": "10.1046/j.1365-2265.2002.01636.x",
"pmid": "12390332",
"title": "A mortality prediction model in diabetic ketoacidosis",
"source": "Clin Endocrinol (Oxf). 2002;57(5):595-601",
"authors": "Efstathiou SP, Tsioulos DI, Tsiakou AG, Gratsias YG, Pefanis AV, Mountokalakis TD"
},
"max_score": 25,
"components": [
{
"factor": "severe_comorbidity",
"points": 0,
"present": false
},
{
"factor": "ph_lt_7",
"points": 0,
"present": false
},
{
"factor": "insulin_gt_50_12h",
"points": 0,
"present": false
},
{
"factor": "glucose_gt_16_7_12h",
"points": 0,
"present": false
},
{
"factor": "depressed_mental_24h",
"points": 0,
"present": false
},
{
"factor": "fever_24h",
"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": "DKA-MPM = severe_comorbidity 6 + ph_lt_7 4 + insulin_gt_50_12h 4 + glucose_gt_16_7_12h 4 + depressed_mental_24h 4 + fever_24h 3; Efstathiou 2002; max 25; published in-hospital death 0.86% scores 0-14 and 93.3% scores 19-25",
"observed_mortality_percent": 0.86
}
},
"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": [
"severe_comorbidity",
"ph_lt_7",
"insulin_gt_50_12h",
"glucose_gt_16_7_12h",
"depressed_mental_24h",
"fever_24h"
],
"properties": {
"ph_lt_7": {
"type": "boolean",
"description": "Arterial pH < 7.0 at presentation as assigned by the caller (Efstathiou 2002). true scores 4. true or false. magent does not assay pH."
},
"fever_24h": {
"type": "boolean",
"description": "Fever after 24 h as assigned by the caller (Efstathiou 2002). true scores 3. true or false. magent does not take temperature."
},
"insulin_gt_50_12h": {
"type": "boolean",
"description": "Regular insulin > 50 IU in the first 12 h as assigned by the caller (Efstathiou 2002). true scores 4. true or false. Not an insulin dose. magent does not order insulin."
},
"severe_comorbidity": {
"type": "boolean",
"description": "Severe coexisting disease at presentation as assigned by the caller (Efstathiou 2002). true scores 6. true or false. magent does not diagnose comorbidity."
},
"glucose_gt_16_7_12h": {
"type": "boolean",
"description": "Serum glucose > 16.7 mmol/L after 12 h as assigned by the caller (Efstathiou 2002). true scores 4. true or false. magent does not assay glucose."
},
"depressed_mental_24h": {
"type": "boolean",
"description": "Depressed mental state after 24 h as assigned by the caller (Efstathiou 2002). true scores 4. true or false. magent does not examine the patient."
}
}
}
},
"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/dka_mpm",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"ph_lt_7": false,
"fever_24h": false,
"insulin_gt_50_12h": false,
"severe_comorbidity": false,
"glucose_gt_16_7_12h": false,
"depressed_mental_24h": false
},
{
"ph_lt_7": false,
"fever_24h": false,
"insulin_gt_50_12h": false,
"severe_comorbidity": false,
"glucose_gt_16_7_12h": false,
"depressed_mental_24h": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/dka_mpm",
"count": 2,
"items": [
{
"score": 0,
"formula": "dka_mpm",
"citation": {
"id": "efstathiou-2002",
"doi": "10.1046/j.1365-2265.2002.01636.x",
"pmid": "12390332",
"title": "A mortality prediction model in diabetic ketoacidosis",
"source": "Clin Endocrinol (Oxf). 2002;57(5):595-601",
"authors": "Efstathiou SP, Tsioulos DI, Tsiakou AG, Gratsias YG, Pefanis AV, Mountokalakis TD"
},
"max_score": 25,
"components": [
{
"factor": "severe_comorbidity",
"points": 0,
"present": false
},
{
"factor": "ph_lt_7",
"points": 0,
"present": false
},
{
"factor": "insulin_gt_50_12h",
"points": 0,
"present": false
},
{
"factor": "glucose_gt_16_7_12h",
"points": 0,
"present": false
},
{
"factor": "depressed_mental_24h",
"points": 0,
"present": false
},
{
"factor": "fever_24h",
"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": "DKA-MPM = severe_comorbidity 6 + ph_lt_7 4 + insulin_gt_50_12h 4 + glucose_gt_16_7_12h 4 + depressed_mental_24h 4 + fever_24h 3; Efstathiou 2002; max 25; published in-hospital death 0.86% scores 0-14 and 93.3% scores 19-25",
"observed_mortality_percent": 0.86
},
{
"score": 0,
"formula": "dka_mpm",
"citation": {
"id": "efstathiou-2002",
"doi": "10.1046/j.1365-2265.2002.01636.x",
"pmid": "12390332",
"title": "A mortality prediction model in diabetic ketoacidosis",
"source": "Clin Endocrinol (Oxf). 2002;57(5):595-601",
"authors": "Efstathiou SP, Tsioulos DI, Tsiakou AG, Gratsias YG, Pefanis AV, Mountokalakis TD"
},
"max_score": 25,
"components": [
{
"factor": "severe_comorbidity",
"points": 0,
"present": false
},
{
"factor": "ph_lt_7",
"points": 0,
"present": false
},
{
"factor": "insulin_gt_50_12h",
"points": 0,
"present": false
},
{
"factor": "glucose_gt_16_7_12h",
"points": 0,
"present": false
},
{
"factor": "depressed_mental_24h",
"points": 0,
"present": false
},
{
"factor": "fever_24h",
"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": "DKA-MPM = severe_comorbidity 6 + ph_lt_7 4 + insulin_gt_50_12h 4 + glucose_gt_16_7_12h 4 + depressed_mental_24h 4 + fever_24h 3; Efstathiou 2002; max 25; published in-hospital death 0.86% scores 0-14 and 93.3% scores 19-25",
"observed_mortality_percent": 0.86
}
]
}
},
"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": [
"severe_comorbidity",
"ph_lt_7",
"insulin_gt_50_12h",
"glucose_gt_16_7_12h",
"depressed_mental_24h",
"fever_24h"
],
"properties": {
"ph_lt_7": {
"type": "boolean",
"description": "Arterial pH < 7.0 at presentation as assigned by the caller (Efstathiou 2002). true scores 4. true or false. magent does not assay pH."
},
"fever_24h": {
"type": "boolean",
"description": "Fever after 24 h as assigned by the caller (Efstathiou 2002). true scores 3. true or false. magent does not take temperature."
},
"insulin_gt_50_12h": {
"type": "boolean",
"description": "Regular insulin > 50 IU in the first 12 h as assigned by the caller (Efstathiou 2002). true scores 4. true or false. Not an insulin dose. magent does not order insulin."
},
"severe_comorbidity": {
"type": "boolean",
"description": "Severe coexisting disease at presentation as assigned by the caller (Efstathiou 2002). true scores 6. true or false. magent does not diagnose comorbidity."
},
"glucose_gt_16_7_12h": {
"type": "boolean",
"description": "Serum glucose > 16.7 mmol/L after 12 h as assigned by the caller (Efstathiou 2002). true scores 4. true or false. magent does not assay glucose."
},
"depressed_mental_24h": {
"type": "boolean",
"description": "Depressed mental state after 24 h as assigned by the caller (Efstathiou 2002). true scores 4. true or false. magent does not examine the patient."
}
}
},
"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 16:01Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 08:15Z
- 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. 9 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/dka_mpm, 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.