magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
TradingLiveeip155:8453Exactvia cdp
AdaptAcsChest-painTroponinCalculator
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 13:02Z
—
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/adapt",
"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/adapt",
"tags": [
"adapt",
"acs",
"chest-pain",
"troponin",
"calculator"
],
"mimeType": "application/json",
"description": "Than 2012 ADAPT 2-hour accelerated diagnostic protocol for emergency chest pain. low_risk is true only when the caller-assigned TIMI UA/NSTEMI score is 0, new ischemic ECG changes are absent, and both 0-hour and 2-hour (not 3-hour) troponin flags are not elevated. magent does not assign TIMI items, read an ECG, or assay troponin. Not HEART Pathway. Not a discharge order, ACS diagnosis, or stress-test order. Not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"timi_score": 0,
"new_ischemic_ecg": false,
"troponin_0_elevated": false,
"troponin_2h_elevated": false
}
},
"output": {
"type": "json",
"example": {
"formula": "adapt",
"citation": {
"id": "than-2012",
"doi": "10.1016/j.jacc.2012.02.035",
"pmid": "22578923",
"title": "2-Hour accelerated diagnostic protocol to assess patients with chest pain symptoms using contemporary troponins as the only biomarker: the ADAPT trial",
"source": "J Am Coll Cardiol. 2012;59(23):2091-2098",
"authors": "Than M, Cullen L, Aldous S, Parsonage WA, Reid CM, Greenslade J, et al."
},
"low_risk": true,
"components": [
{
"met": true,
"value": 0,
"factor": "timi_score_eq_0"
},
{
"met": true,
"value": false,
"factor": "no_new_ischemic_ecg"
},
{
"met": true,
"value": false,
"factor": "trop0_not_elevated"
},
{
"met": true,
"value": false,
"factor": "trop2h_not_elevated"
}
],
"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.",
"timi_score": 0,
"new_ischemic_ecg": false,
"formula_expression": "low_risk iff timi_score == 0 and new_ischemic_ecg is false and troponin_0_elevated is false and troponin_2h_elevated is false; timi_score is the caller-assigned Antman 2000 TIMI UA/NSTEMI total 0-7; ECG and troponin flags are caller-assigned (Than 2012 ADAPT Table 1)",
"troponin_0_elevated": false,
"troponin_2h_elevated": false
}
},
"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": [
"timi_score",
"new_ischemic_ecg",
"troponin_0_elevated",
"troponin_2h_elevated"
],
"properties": {
"timi_score": {
"type": "integer",
"description": "Caller-assigned TIMI UA/NSTEMI score integer 0-7 (Antman 2000 components already summed by the caller). magent does not assign TIMI items. Low-risk (ADP-negative) requires 0 when the ECG and both 2-hour serial troponin flags are false."
},
"new_ischemic_ecg": {
"type": "boolean",
"description": "New ischemic changes on the initial ECG (not known to be pre-existing), as assigned by the caller. true or false. true blocks low-risk. magent does not read an ECG."
},
"troponin_0_elevated": {
"type": "boolean",
"description": "0-hour cTnI at or above the institutional cutoff as assigned by the caller. true or false. true blocks low-risk. magent does not assay troponin."
},
"troponin_2h_elevated": {
"type": "boolean",
"description": "2-hour (not 3-hour) troponin at or above the institutional cutoff as assigned by the caller. true or false. true blocks low-risk. magent does not assay troponin."
}
}
}
},
"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/adapt",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"timi_score": 0,
"new_ischemic_ecg": false,
"troponin_0_elevated": false,
"troponin_2h_elevated": false
},
{
"timi_score": 0,
"new_ischemic_ecg": false,
"troponin_0_elevated": false,
"troponin_2h_elevated": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/adapt",
"count": 2,
"items": [
{
"formula": "adapt",
"citation": {
"id": "than-2012",
"doi": "10.1016/j.jacc.2012.02.035",
"pmid": "22578923",
"title": "2-Hour accelerated diagnostic protocol to assess patients with chest pain symptoms using contemporary troponins as the only biomarker: the ADAPT trial",
"source": "J Am Coll Cardiol. 2012;59(23):2091-2098",
"authors": "Than M, Cullen L, Aldous S, Parsonage WA, Reid CM, Greenslade J, et al."
},
"low_risk": true,
"components": [
{
"met": true,
"value": 0,
"factor": "timi_score_eq_0"
},
{
"met": true,
"value": false,
"factor": "no_new_ischemic_ecg"
},
{
"met": true,
"value": false,
"factor": "trop0_not_elevated"
},
{
"met": true,
"value": false,
"factor": "trop2h_not_elevated"
}
],
"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.",
"timi_score": 0,
"new_ischemic_ecg": false,
"formula_expression": "low_risk iff timi_score == 0 and new_ischemic_ecg is false and troponin_0_elevated is false and troponin_2h_elevated is false; timi_score is the caller-assigned Antman 2000 TIMI UA/NSTEMI total 0-7; ECG and troponin flags are caller-assigned (Than 2012 ADAPT Table 1)",
"troponin_0_elevated": false,
"troponin_2h_elevated": false
},
{
"formula": "adapt",
"citation": {
"id": "than-2012",
"doi": "10.1016/j.jacc.2012.02.035",
"pmid": "22578923",
"title": "2-Hour accelerated diagnostic protocol to assess patients with chest pain symptoms using contemporary troponins as the only biomarker: the ADAPT trial",
"source": "J Am Coll Cardiol. 2012;59(23):2091-2098",
"authors": "Than M, Cullen L, Aldous S, Parsonage WA, Reid CM, Greenslade J, et al."
},
"low_risk": true,
"components": [
{
"met": true,
"value": 0,
"factor": "timi_score_eq_0"
},
{
"met": true,
"value": false,
"factor": "no_new_ischemic_ecg"
},
{
"met": true,
"value": false,
"factor": "trop0_not_elevated"
},
{
"met": true,
"value": false,
"factor": "trop2h_not_elevated"
}
],
"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.",
"timi_score": 0,
"new_ischemic_ecg": false,
"formula_expression": "low_risk iff timi_score == 0 and new_ischemic_ecg is false and troponin_0_elevated is false and troponin_2h_elevated is false; timi_score is the caller-assigned Antman 2000 TIMI UA/NSTEMI total 0-7; ECG and troponin flags are caller-assigned (Than 2012 ADAPT Table 1)",
"troponin_0_elevated": false,
"troponin_2h_elevated": false
}
]
}
},
"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": [
"timi_score",
"new_ischemic_ecg",
"troponin_0_elevated",
"troponin_2h_elevated"
],
"properties": {
"timi_score": {
"type": "integer",
"description": "Caller-assigned TIMI UA/NSTEMI score integer 0-7 (Antman 2000 components already summed by the caller). magent does not assign TIMI items. Low-risk (ADP-negative) requires 0 when the ECG and both 2-hour serial troponin flags are false."
},
"new_ischemic_ecg": {
"type": "boolean",
"description": "New ischemic changes on the initial ECG (not known to be pre-existing), as assigned by the caller. true or false. true blocks low-risk. magent does not read an ECG."
},
"troponin_0_elevated": {
"type": "boolean",
"description": "0-hour cTnI at or above the institutional cutoff as assigned by the caller. true or false. true blocks low-risk. magent does not assay troponin."
},
"troponin_2h_elevated": {
"type": "boolean",
"description": "2-hour (not 3-hour) troponin at or above the institutional cutoff as assigned by the caller. true or false. true blocks low-risk. magent does not assay troponin."
}
}
},
"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 13:02Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 06:45Z
- 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/adapt, 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.