magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
RegiscarDressEmergencyDermatologyCalculator
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 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 13:32Z
—
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/regiscar",
"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/regiscar",
"tags": [
"regiscar",
"dress",
"emergency",
"dermatology",
"calculator"
],
"mimeType": "application/json",
"description": "Kardaun 2007 RegiSCAR DRESS scoring letter from ten caller-assigned items (sum -4 to 9). Bands: <2 none, 2-3 possible, 4-5 probable, >=6 definite. Not a DRESS diagnosis, not SCORTEN, not J-SCAR. magent does not count eosinophils or read a biopsy. Biopsy unknown is not offered. Not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"organs": 0,
"eosinophilia": "none",
"fever_ge_38_5": true,
"rash_gt_50_bsa": false,
"rash_suggestive": false,
"biopsy_compatible": true,
"atypical_lymphocytes": false,
"resolution_ge_15_days": true,
"lymphadenopathy_ge_2_sites": false,
"alternative_causes_excluded": false
}
},
"output": {
"type": "json",
"example": {
"score": -1,
"formula": "regiscar",
"citation": {
"id": "kardaun-2007",
"doi": "10.1111/j.1365-2133.2006.07704.x",
"pmid": "17300272",
"title": "Variability in the clinical pattern of cutaneous side-effects of drugs with systemic symptoms: does a DRESS syndrome really exist?",
"source": "Br J Dermatol. 2007;156(3):609-611",
"authors": "Kardaun SH, Sidoroff A, Valeyrie-Allanore L, Halevy S, Davidovici BB, Mockenhaupt M, Roujeau JC"
},
"max_score": 9,
"components": [
{
"value": true,
"factor": "fever_ge_38_5",
"points": 0,
"present": true
},
{
"value": false,
"factor": "lymphadenopathy_ge_2_sites",
"points": 0,
"present": true
},
{
"value": "none",
"factor": "eosinophilia",
"points": 0,
"present": true
},
{
"value": false,
"factor": "atypical_lymphocytes",
"points": 0,
"present": true
},
{
"value": false,
"factor": "rash_gt_50_bsa",
"points": 0,
"present": true
},
{
"value": false,
"factor": "rash_suggestive",
"points": -1,
"present": true
},
{
"value": true,
"factor": "biopsy_compatible",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "organs",
"points": 0,
"present": true
},
{
"value": true,
"factor": "resolution_ge_15_days",
"points": 0,
"present": true
},
{
"value": false,
"factor": "alternative_causes_excluded",
"points": 0,
"present": true
}
],
"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.",
"regiscar_band": "none",
"formula_expression": "RegiSCAR = fever_ge_38_5 (true 0, false −1) + lymphadenopathy_ge_2_sites (true 1, false 0) + eosinophilia (none 0, mild 1, severe 2) + atypical_lymphocytes (true 1, false 0) + rash_gt_50_bsa (true 1, false 0) + rash_suggestive (true 1, false −1) + biopsy_compatible (true 0, false −1) + organs (0/1/≥2 → 0/1/2) + resolution_ge_15_days (true 0, false −1) + alternative_causes_excluded (true 1, false 0); Kardaun 2007 scoring letter; sum −4 to 9; none <2, possible 2–3, probable 4–5, definite ≥6"
}
},
"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": [
"fever_ge_38_5",
"lymphadenopathy_ge_2_sites",
"eosinophilia",
"atypical_lymphocytes",
"rash_gt_50_bsa",
"rash_suggestive",
"biopsy_compatible",
"organs",
"resolution_ge_15_days",
"alternative_causes_excluded"
],
"properties": {
"organs": {
"type": "integer",
"description": "Caller-assigned organ involvement count (Kardaun 2007): integer 0, 1, or 2 (≥2 organs scores 2). Values outside 0–2 are rejected. magent does not diagnose organ injury."
},
"eosinophilia": {
"enum": [
"none",
"mild",
"severe"
],
"type": "string",
"description": "Caller-assigned eosinophilia (Kardaun 2007): none (0), mild (1; 700–1499/µL or 10–19%), or severe (2; ≥1500/µL or ≥20%). magent does not count eosinophils."
},
"fever_ge_38_5": {
"type": "boolean",
"description": "Caller-assigned fever ≥38.5 °C (Kardaun 2007). true scores 0; false scores −1. magent does not measure temperature."
},
"rash_gt_50_bsa": {
"type": "boolean",
"description": "Caller-assigned rash extent >50% body surface area (Kardaun 2007). true scores 1; false scores 0. magent does not measure BSA."
},
"rash_suggestive": {
"type": "boolean",
"description": "Caller-assigned rash morphology suggestive of DRESS (Kardaun 2007). true scores 1; false scores −1. magent does not examine the skin."
},
"biopsy_compatible": {
"type": "boolean",
"description": "Caller-assigned skin-biopsy compatibility with DRESS (Kardaun 2007). true scores 0; false scores −1. Unknown is not offered. magent does not read a biopsy."
},
"atypical_lymphocytes": {
"type": "boolean",
"description": "Caller-assigned atypical lymphocytes (Kardaun 2007). true scores 1; false scores 0. magent does not read a blood film."
},
"resolution_ge_15_days": {
"type": "boolean",
"description": "Caller-assigned resolution ≥15 days (Kardaun 2007). true scores 0; false scores −1. magent does not time the illness."
},
"lymphadenopathy_ge_2_sites": {
"type": "boolean",
"description": "Caller-assigned lymphadenopathy involving ≥2 sites (Kardaun 2007). true scores 1; false scores 0. magent does not examine lymph nodes."
},
"alternative_causes_excluded": {
"type": "boolean",
"description": "Caller-assigned exclusion of alternative causes (Kardaun 2007). true scores 1; false scores 0. magent does not exclude infection or other diagnoses."
}
}
}
},
"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/regiscar",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"organs": 0,
"eosinophilia": "none",
"fever_ge_38_5": true,
"rash_gt_50_bsa": false,
"rash_suggestive": false,
"biopsy_compatible": true,
"atypical_lymphocytes": false,
"resolution_ge_15_days": true,
"lymphadenopathy_ge_2_sites": false,
"alternative_causes_excluded": false
},
{
"organs": 0,
"eosinophilia": "none",
"fever_ge_38_5": true,
"rash_gt_50_bsa": false,
"rash_suggestive": false,
"biopsy_compatible": true,
"atypical_lymphocytes": false,
"resolution_ge_15_days": true,
"lymphadenopathy_ge_2_sites": false,
"alternative_causes_excluded": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/regiscar",
"count": 2,
"items": [
{
"score": -1,
"formula": "regiscar",
"citation": {
"id": "kardaun-2007",
"doi": "10.1111/j.1365-2133.2006.07704.x",
"pmid": "17300272",
"title": "Variability in the clinical pattern of cutaneous side-effects of drugs with systemic symptoms: does a DRESS syndrome really exist?",
"source": "Br J Dermatol. 2007;156(3):609-611",
"authors": "Kardaun SH, Sidoroff A, Valeyrie-Allanore L, Halevy S, Davidovici BB, Mockenhaupt M, Roujeau JC"
},
"max_score": 9,
"components": [
{
"value": true,
"factor": "fever_ge_38_5",
"points": 0,
"present": true
},
{
"value": false,
"factor": "lymphadenopathy_ge_2_sites",
"points": 0,
"present": true
},
{
"value": "none",
"factor": "eosinophilia",
"points": 0,
"present": true
},
{
"value": false,
"factor": "atypical_lymphocytes",
"points": 0,
"present": true
},
{
"value": false,
"factor": "rash_gt_50_bsa",
"points": 0,
"present": true
},
{
"value": false,
"factor": "rash_suggestive",
"points": -1,
"present": true
},
{
"value": true,
"factor": "biopsy_compatible",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "organs",
"points": 0,
"present": true
},
{
"value": true,
"factor": "resolution_ge_15_days",
"points": 0,
"present": true
},
{
"value": false,
"factor": "alternative_causes_excluded",
"points": 0,
"present": true
}
],
"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.",
"regiscar_band": "none",
"formula_expression": "RegiSCAR = fever_ge_38_5 (true 0, false −1) + lymphadenopathy_ge_2_sites (true 1, false 0) + eosinophilia (none 0, mild 1, severe 2) + atypical_lymphocytes (true 1, false 0) + rash_gt_50_bsa (true 1, false 0) + rash_suggestive (true 1, false −1) + biopsy_compatible (true 0, false −1) + organs (0/1/≥2 → 0/1/2) + resolution_ge_15_days (true 0, false −1) + alternative_causes_excluded (true 1, false 0); Kardaun 2007 scoring letter; sum −4 to 9; none <2, possible 2–3, probable 4–5, definite ≥6"
},
{
"score": -1,
"formula": "regiscar",
"citation": {
"id": "kardaun-2007",
"doi": "10.1111/j.1365-2133.2006.07704.x",
"pmid": "17300272",
"title": "Variability in the clinical pattern of cutaneous side-effects of drugs with systemic symptoms: does a DRESS syndrome really exist?",
"source": "Br J Dermatol. 2007;156(3):609-611",
"authors": "Kardaun SH, Sidoroff A, Valeyrie-Allanore L, Halevy S, Davidovici BB, Mockenhaupt M, Roujeau JC"
},
"max_score": 9,
"components": [
{
"value": true,
"factor": "fever_ge_38_5",
"points": 0,
"present": true
},
{
"value": false,
"factor": "lymphadenopathy_ge_2_sites",
"points": 0,
"present": true
},
{
"value": "none",
"factor": "eosinophilia",
"points": 0,
"present": true
},
{
"value": false,
"factor": "atypical_lymphocytes",
"points": 0,
"present": true
},
{
"value": false,
"factor": "rash_gt_50_bsa",
"points": 0,
"present": true
},
{
"value": false,
"factor": "rash_suggestive",
"points": -1,
"present": true
},
{
"value": true,
"factor": "biopsy_compatible",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "organs",
"points": 0,
"present": true
},
{
"value": true,
"factor": "resolution_ge_15_days",
"points": 0,
"present": true
},
{
"value": false,
"factor": "alternative_causes_excluded",
"points": 0,
"present": true
}
],
"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.",
"regiscar_band": "none",
"formula_expression": "RegiSCAR = fever_ge_38_5 (true 0, false −1) + lymphadenopathy_ge_2_sites (true 1, false 0) + eosinophilia (none 0, mild 1, severe 2) + atypical_lymphocytes (true 1, false 0) + rash_gt_50_bsa (true 1, false 0) + rash_suggestive (true 1, false −1) + biopsy_compatible (true 0, false −1) + organs (0/1/≥2 → 0/1/2) + resolution_ge_15_days (true 0, false −1) + alternative_causes_excluded (true 1, false 0); Kardaun 2007 scoring letter; sum −4 to 9; none <2, possible 2–3, probable 4–5, definite ≥6"
}
]
}
},
"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": [
"fever_ge_38_5",
"lymphadenopathy_ge_2_sites",
"eosinophilia",
"atypical_lymphocytes",
"rash_gt_50_bsa",
"rash_suggestive",
"biopsy_compatible",
"organs",
"resolution_ge_15_days",
"alternative_causes_excluded"
],
"properties": {
"organs": {
"type": "integer",
"description": "Caller-assigned organ involvement count (Kardaun 2007): integer 0, 1, or 2 (≥2 organs scores 2). Values outside 0–2 are rejected. magent does not diagnose organ injury."
},
"eosinophilia": {
"enum": [
"none",
"mild",
"severe"
],
"type": "string",
"description": "Caller-assigned eosinophilia (Kardaun 2007): none (0), mild (1; 700–1499/µL or 10–19%), or severe (2; ≥1500/µL or ≥20%). magent does not count eosinophils."
},
"fever_ge_38_5": {
"type": "boolean",
"description": "Caller-assigned fever ≥38.5 °C (Kardaun 2007). true scores 0; false scores −1. magent does not measure temperature."
},
"rash_gt_50_bsa": {
"type": "boolean",
"description": "Caller-assigned rash extent >50% body surface area (Kardaun 2007). true scores 1; false scores 0. magent does not measure BSA."
},
"rash_suggestive": {
"type": "boolean",
"description": "Caller-assigned rash morphology suggestive of DRESS (Kardaun 2007). true scores 1; false scores −1. magent does not examine the skin."
},
"biopsy_compatible": {
"type": "boolean",
"description": "Caller-assigned skin-biopsy compatibility with DRESS (Kardaun 2007). true scores 0; false scores −1. Unknown is not offered. magent does not read a biopsy."
},
"atypical_lymphocytes": {
"type": "boolean",
"description": "Caller-assigned atypical lymphocytes (Kardaun 2007). true scores 1; false scores 0. magent does not read a blood film."
},
"resolution_ge_15_days": {
"type": "boolean",
"description": "Caller-assigned resolution ≥15 days (Kardaun 2007). true scores 0; false scores −1. magent does not time the illness."
},
"lymphadenopathy_ge_2_sites": {
"type": "boolean",
"description": "Caller-assigned lymphadenopathy involving ≥2 sites (Kardaun 2007). true scores 1; false scores 0. magent does not examine lymph nodes."
},
"alternative_causes_excluded": {
"type": "boolean",
"description": "Caller-assigned exclusion of alternative causes (Kardaun 2007). true scores 1; false scores 0. magent does not exclude infection or other diagnoses."
}
}
},
"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 13:32Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 09:15Z
- 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. 13 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/regiscar, 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.