magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Dataofflineeip155:8453Exactvia cdp
Rest-lgsLgsEpilepsyNeurologyScreening
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 00:33Z
—
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/rest_lgs",
"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/rest_lgs",
"tags": [
"rest-lgs",
"lgs",
"epilepsy",
"neurology",
"screening"
],
"mimeType": "application/json",
"description": "Wolf 2024 REST-LGS: four major criteria (+3 each) and four minor (+1 each). Max 16. likely if score > 11, possible if 8-11, unlikely if < 8. Caller-assigned flags only; magent does not read EEG. Screening, not a diagnosis of Lennox-Gastaut syndrome. Not the 2019 CRF count threshold.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"slow_spike_wave": false,
"vns_keto_or_surgery": false,
"other_eeg_abnormalities": false,
"seizure_onset_before_12": false,
"two_or_more_seizure_types": false,
"helmet_or_head_face_injury": false,
"cognitive_impairment_since_childhood": false,
"persistent_seizures_despite_two_asms": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "rest_lgs",
"citation": {
"id": "wolf-2024",
"doi": "10.1002/epi4.12952",
"pmid": "38726917",
"title": "Real-world use of the updated refractory epilepsy screening tool for Lennox-Gastaut syndrome",
"source": "Epilepsia Open. 2024;9(4):1277-1286",
"authors": "Wolf SM, Boyce D, Peña P, Piña-Garza JE, Roland JJ, Thomas B, Zogejani D, McGoldrick PE"
},
"max_score": 16,
"components": [
{
"factor": "two_or_more_seizure_types",
"points": 0,
"present": false
},
{
"factor": "seizure_onset_before_12",
"points": 0,
"present": false
},
{
"factor": "slow_spike_wave",
"points": 0,
"present": false
},
{
"factor": "cognitive_impairment_since_childhood",
"points": 0,
"present": false
},
{
"factor": "persistent_seizures_despite_two_asms",
"points": 0,
"present": false
},
{
"factor": "vns_keto_or_surgery",
"points": 0,
"present": false
},
{
"factor": "helmet_or_head_face_injury",
"points": 0,
"present": false
},
{
"factor": "other_eeg_abnormalities",
"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.",
"lgs_screen": "unlikely",
"major_count": 0,
"minor_count": 0,
"formula_expression": "REST-LGS = 3*two_or_more_seizure_types + 3*seizure_onset_before_12 + 3*slow_spike_wave + 3*cognitive_impairment_since_childhood + persistent_seizures_despite_two_asms + vns_keto_or_surgery + helmet_or_head_face_injury + other_eeg_abnormalities; each major 3, each minor 1; max 16; likely if score > 11; possible if 8-11; unlikely if score < 8 (Wolf 2024)"
}
},
"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": [
"two_or_more_seizure_types",
"seizure_onset_before_12",
"slow_spike_wave",
"cognitive_impairment_since_childhood",
"persistent_seizures_despite_two_asms",
"vns_keto_or_surgery",
"helmet_or_head_face_injury",
"other_eeg_abnormalities"
],
"properties": {
"slow_spike_wave": {
"type": "boolean",
"description": "History of slow spike-wave (SSW, <2.5 Hz) on EEG (Wolf 2024 major, +3). true or false as assigned by the caller. magent does not read EEG."
},
"vns_keto_or_surgery": {
"type": "boolean",
"description": "History of vagal nerve stimulation, ketogenic diet therapy, or epilepsy surgery (Wolf 2024 minor, +1). true or false as assigned by the caller."
},
"other_eeg_abnormalities": {
"type": "boolean",
"description": "Other EEG abnormalities: multifocal spikes, symptomatic generalized discharges, generalized periods of attenuation of background/electrodecrement, or paroxysmal fast activity (Wolf 2024 minor, +1). true or false as assigned by the caller. magent does not read EEG."
},
"seizure_onset_before_12": {
"type": "boolean",
"description": "Seizure onset at younger than 12 years of age (Wolf 2024 major, +3). Age 12 does not meet. true or false as assigned by the caller. magent does not take numeric age."
},
"two_or_more_seizure_types": {
"type": "boolean",
"description": "Two or more seizure types (Wolf 2024 major, +3). true or false as assigned by the caller."
},
"helmet_or_head_face_injury": {
"type": "boolean",
"description": "Evidence of seizure-related helmet use or head/face injury (Wolf 2024 minor, +1). true or false as assigned by the caller."
},
"cognitive_impairment_since_childhood": {
"type": "boolean",
"description": "Cognitive impairment since childhood (Wolf 2024 major, +3), which may include past or current learning difficulties, special education, autism, intellectual disabilities, or developmental delays. true or false as assigned by the caller."
},
"persistent_seizures_despite_two_asms": {
"type": "boolean",
"description": "Persistent seizures despite a trial of two or more antiseizure medications (Wolf 2024 minor, +1). true or false as assigned by the caller."
}
}
}
},
"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/rest_lgs",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"slow_spike_wave": false,
"vns_keto_or_surgery": false,
"other_eeg_abnormalities": false,
"seizure_onset_before_12": false,
"two_or_more_seizure_types": false,
"helmet_or_head_face_injury": false,
"cognitive_impairment_since_childhood": false,
"persistent_seizures_despite_two_asms": false
},
{
"slow_spike_wave": false,
"vns_keto_or_surgery": false,
"other_eeg_abnormalities": false,
"seizure_onset_before_12": false,
"two_or_more_seizure_types": false,
"helmet_or_head_face_injury": false,
"cognitive_impairment_since_childhood": false,
"persistent_seizures_despite_two_asms": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/rest_lgs",
"count": 2,
"items": [
{
"score": 0,
"formula": "rest_lgs",
"citation": {
"id": "wolf-2024",
"doi": "10.1002/epi4.12952",
"pmid": "38726917",
"title": "Real-world use of the updated refractory epilepsy screening tool for Lennox-Gastaut syndrome",
"source": "Epilepsia Open. 2024;9(4):1277-1286",
"authors": "Wolf SM, Boyce D, Peña P, Piña-Garza JE, Roland JJ, Thomas B, Zogejani D, McGoldrick PE"
},
"max_score": 16,
"components": [
{
"factor": "two_or_more_seizure_types",
"points": 0,
"present": false
},
{
"factor": "seizure_onset_before_12",
"points": 0,
"present": false
},
{
"factor": "slow_spike_wave",
"points": 0,
"present": false
},
{
"factor": "cognitive_impairment_since_childhood",
"points": 0,
"present": false
},
{
"factor": "persistent_seizures_despite_two_asms",
"points": 0,
"present": false
},
{
"factor": "vns_keto_or_surgery",
"points": 0,
"present": false
},
{
"factor": "helmet_or_head_face_injury",
"points": 0,
"present": false
},
{
"factor": "other_eeg_abnormalities",
"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.",
"lgs_screen": "unlikely",
"major_count": 0,
"minor_count": 0,
"formula_expression": "REST-LGS = 3*two_or_more_seizure_types + 3*seizure_onset_before_12 + 3*slow_spike_wave + 3*cognitive_impairment_since_childhood + persistent_seizures_despite_two_asms + vns_keto_or_surgery + helmet_or_head_face_injury + other_eeg_abnormalities; each major 3, each minor 1; max 16; likely if score > 11; possible if 8-11; unlikely if score < 8 (Wolf 2024)"
},
{
"score": 0,
"formula": "rest_lgs",
"citation": {
"id": "wolf-2024",
"doi": "10.1002/epi4.12952",
"pmid": "38726917",
"title": "Real-world use of the updated refractory epilepsy screening tool for Lennox-Gastaut syndrome",
"source": "Epilepsia Open. 2024;9(4):1277-1286",
"authors": "Wolf SM, Boyce D, Peña P, Piña-Garza JE, Roland JJ, Thomas B, Zogejani D, McGoldrick PE"
},
"max_score": 16,
"components": [
{
"factor": "two_or_more_seizure_types",
"points": 0,
"present": false
},
{
"factor": "seizure_onset_before_12",
"points": 0,
"present": false
},
{
"factor": "slow_spike_wave",
"points": 0,
"present": false
},
{
"factor": "cognitive_impairment_since_childhood",
"points": 0,
"present": false
},
{
"factor": "persistent_seizures_despite_two_asms",
"points": 0,
"present": false
},
{
"factor": "vns_keto_or_surgery",
"points": 0,
"present": false
},
{
"factor": "helmet_or_head_face_injury",
"points": 0,
"present": false
},
{
"factor": "other_eeg_abnormalities",
"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.",
"lgs_screen": "unlikely",
"major_count": 0,
"minor_count": 0,
"formula_expression": "REST-LGS = 3*two_or_more_seizure_types + 3*seizure_onset_before_12 + 3*slow_spike_wave + 3*cognitive_impairment_since_childhood + persistent_seizures_despite_two_asms + vns_keto_or_surgery + helmet_or_head_face_injury + other_eeg_abnormalities; each major 3, each minor 1; max 16; likely if score > 11; possible if 8-11; unlikely if score < 8 (Wolf 2024)"
}
]
}
},
"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": [
"two_or_more_seizure_types",
"seizure_onset_before_12",
"slow_spike_wave",
"cognitive_impairment_since_childhood",
"persistent_seizures_despite_two_asms",
"vns_keto_or_surgery",
"helmet_or_head_face_injury",
"other_eeg_abnormalities"
],
"properties": {
"slow_spike_wave": {
"type": "boolean",
"description": "History of slow spike-wave (SSW, <2.5 Hz) on EEG (Wolf 2024 major, +3). true or false as assigned by the caller. magent does not read EEG."
},
"vns_keto_or_surgery": {
"type": "boolean",
"description": "History of vagal nerve stimulation, ketogenic diet therapy, or epilepsy surgery (Wolf 2024 minor, +1). true or false as assigned by the caller."
},
"other_eeg_abnormalities": {
"type": "boolean",
"description": "Other EEG abnormalities: multifocal spikes, symptomatic generalized discharges, generalized periods of attenuation of background/electrodecrement, or paroxysmal fast activity (Wolf 2024 minor, +1). true or false as assigned by the caller. magent does not read EEG."
},
"seizure_onset_before_12": {
"type": "boolean",
"description": "Seizure onset at younger than 12 years of age (Wolf 2024 major, +3). Age 12 does not meet. true or false as assigned by the caller. magent does not take numeric age."
},
"two_or_more_seizure_types": {
"type": "boolean",
"description": "Two or more seizure types (Wolf 2024 major, +3). true or false as assigned by the caller."
},
"helmet_or_head_face_injury": {
"type": "boolean",
"description": "Evidence of seizure-related helmet use or head/face injury (Wolf 2024 minor, +1). true or false as assigned by the caller."
},
"cognitive_impairment_since_childhood": {
"type": "boolean",
"description": "Cognitive impairment since childhood (Wolf 2024 major, +3), which may include past or current learning difficulties, special education, autism, intellectual disabilities, or developmental delays. true or false as assigned by the caller."
},
"persistent_seizures_despite_two_asms": {
"type": "boolean",
"description": "Persistent seizures despite a trial of two or more antiseizure medications (Wolf 2024 minor, +1). true or false as assigned by the caller."
}
}
},
"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 00:33Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 15:45Z
- 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/rest_lgs, 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.