magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
SearchLiveeip155:8453Exactvia cdp
MnihssStrokeNeurologyMeyerCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 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 2026-08-31 21:36Z
—
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.
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"description": "Meyer/Lyden 2001 modified NIH Stroke Scale (mNIHSS): eleven caller-assigned NINDS-style integers. Drops LOC, facial palsy, limb ataxia, and dysarthria; collapses sensory to 0 = normal or 1 = abnormal; keeps left/right motor arm and leg (each 0-4). Sum 0-31. magent does not examine the patient. No total-score severity bands in Meyer 2001; later website cutoffs are not applied. Not Brott 1989 NIHSS, not a tPA order, not a diagnosis, and not a medical device.",
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],
"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": "mNIHSS = loc_questions (0-2) + loc_commands (0-2) + best_gaze (0-2) + best_visual (0-3) + left_arm (0-4) + right_arm (0-4) + left_leg (0-4) + right_leg (0-4) + sensory (0-1) + best_language (0-3) + neglect (0-2); Meyer/Lyden 2001 modified NIHSS (NINDS 11-item form; L/R motor; sensory collapsed to 0-1); total = sum; max 31; no published total-score severity bands"
}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
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"left_arm",
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"left_leg",
"right_leg",
"sensory",
"best_language",
"neglect"
],
"properties": {
"neglect": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 neglect (integer 0-2): 0 no neglect, 1 partial neglect, 2 complete neglect. magent does not examine the patient."
},
"sensory": {
"enum": [
0,
1
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 sensory (integer 0-1): 0 normal, 1 abnormal. Collapsed from NIHSS 0-2; 2 is invalid. magent does not examine the patient."
},
"left_arm": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 left arm motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"left_leg": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 left leg motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"best_gaze": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 best gaze (integer 0-2): 0 normal, 1 partial gaze palsy, 2 forced deviation. magent does not examine the patient."
},
"right_arm": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 right arm motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"right_leg": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 right leg motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"best_visual": {
"enum": [
0,
1,
2,
3
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 best visual (integer 0-3): 0 no visual loss, 1 partial hemianopia, 2 complete hemianopia, 3 bilateral hemianopia. magent does not examine the patient."
},
"loc_commands": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 LOC commands (integer 0-2): 0 obeys both correctly, 1 obeys one correctly, 2 incorrect. magent does not examine the patient."
},
"best_language": {
"enum": [
0,
1,
2,
3
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 best language (integer 0-3): 0 no aphasia, 1 mild to moderate, 2 severe aphasia, 3 mute. magent does not examine the patient."
},
"loc_questions": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 LOC questions (integer 0-2): 0 answers both correctly, 1 answers one correctly, 2 incorrect. magent does not examine the patient."
}
}
}
},
"additionalProperties": false
},
"output": {
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],
"properties": {
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},
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}
}
}
}
}
}
},
"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
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},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
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"output": {
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"citation": {
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],
"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": "mNIHSS = loc_questions (0-2) + loc_commands (0-2) + best_gaze (0-2) + best_visual (0-3) + left_arm (0-4) + right_arm (0-4) + left_leg (0-4) + right_leg (0-4) + sensory (0-1) + best_language (0-3) + neglect (0-2); Meyer/Lyden 2001 modified NIHSS (NINDS 11-item form; L/R motor; sensory collapsed to 0-1); total = sum; max 31; no published total-score severity bands"
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"authors": "Meyer BC, Hemmen TM, Jackson CM, Lyden PD"
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"present": true
}
],
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"iconUrl": "https://api.magentlab.com/favicon.ico"
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"required": [
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"method"
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"properties": {
"body": {
"type": "object",
"required": [
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],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"loc_questions",
"loc_commands",
"best_gaze",
"best_visual",
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],
"properties": {
"neglect": {
"enum": [
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],
"type": "integer",
"description": "Caller-assigned Meyer 2001 neglect (integer 0-2): 0 no neglect, 1 partial neglect, 2 complete neglect. magent does not examine the patient."
},
"sensory": {
"enum": [
0,
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],
"type": "integer",
"description": "Caller-assigned Meyer 2001 sensory (integer 0-1): 0 normal, 1 abnormal. Collapsed from NIHSS 0-2; 2 is invalid. magent does not examine the patient."
},
"left_arm": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 left arm motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"left_leg": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 left leg motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"best_gaze": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 best gaze (integer 0-2): 0 normal, 1 partial gaze palsy, 2 forced deviation. magent does not examine the patient."
},
"right_arm": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 right arm motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"right_leg": {
"enum": [
0,
1,
2,
3,
4
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 right leg motor, NINDS style (integer 0-4): 0 no drift, 1 drift, 2 some effort against gravity, 3 no effort against gravity, 4 no movement. Not Brott weaker-limb. magent does not examine the patient."
},
"best_visual": {
"enum": [
0,
1,
2,
3
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 best visual (integer 0-3): 0 no visual loss, 1 partial hemianopia, 2 complete hemianopia, 3 bilateral hemianopia. magent does not examine the patient."
},
"loc_commands": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 LOC commands (integer 0-2): 0 obeys both correctly, 1 obeys one correctly, 2 incorrect. magent does not examine the patient."
},
"best_language": {
"enum": [
0,
1,
2,
3
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 best language (integer 0-3): 0 no aphasia, 1 mild to moderate, 2 severe aphasia, 3 mute. magent does not examine the patient."
},
"loc_questions": {
"enum": [
0,
1,
2
],
"type": "integer",
"description": "Caller-assigned Meyer 2001 LOC questions (integer 0-2): 0 answers both correctly, 1 answers one correctly, 2 incorrect. magent does not examine the patient."
}
}
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"minItems": 1
}
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},
"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"
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}Provenance
- Seen in the source catalog
- 2026-08-31 21:36Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 18:45Z
- 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. 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/mnihss, 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.