magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
WifiThreatened-limbSvsIschemiaCalculator
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 13:18Z
—
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/wifi",
"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/wifi",
"tags": [
"wifi",
"threatened-limb",
"svs",
"ischemia",
"calculator"
],
"mimeType": "application/json",
"description": "Mills 2014 SVS WIfI: three independent caller-assigned grades, not a summed total. Wound 0-3 (no ulcer; small shallow distal ulcer; deeper ulcer or digital gangrene; extensive ulcer or gangrene). Ischemia 0-3 (none; mild; moderate; severe). Foot infection 0-3 (none; skin/subcutaneous; deeper without SIRS; with SIRS). Label like W0-I0-fI0. Caller assigns grades. Not a medical device, not PEDIS, and not an amputation or revascularization order; magent does not inspect wounds or measure ABI.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"wound": 0,
"ischemia": 0,
"foot_infection": 0
}
},
"output": {
"type": "json",
"example": {
"wifi": "W0-I0-fI0",
"wound": 0,
"formula": "wifi",
"citation": {
"id": "mills-2014",
"doi": "10.1016/j.jvs.2013.08.003",
"pmid": "24126108",
"title": "The Society for Vascular Surgery Lower Extremity Threatened Limb Classification System: risk stratification based on wound, ischemia, and foot infection (WIfI).",
"source": "J Vasc Surg. 2014;59(1):220-234.e1-2",
"authors": "Mills JL, Conte MS, Armstrong DG, et al."
},
"criteria": [
{
"met": true,
"value": 0,
"factor": "wound"
},
{
"met": true,
"value": 0,
"factor": "ischemia"
},
{
"met": true,
"value": 0,
"factor": "foot_infection"
}
],
"ischemia": 0,
"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.",
"foot_infection": 0,
"formula_expression": "WIfI is three independent Mills 2014 SVS grades, not a summed total: wound 0-3 (0 no ulcer and no gangrene; 1 small shallow distal ulcer without gangrene; 2 deeper ulcer with exposed bone, joint, or tendon, or gangrene limited to digits; 3 extensive deep ulcer or extensive gangrene); ischemia 0-3 as assigned by the caller (0 none; 1 mild; 2 moderate; 3 severe); foot_infection 0-3 (0 none; 1 skin and subcutaneous only; 2 deeper than skin without SIRS; 3 infection with SIRS). Label is W{wound}-I{ischemia}-fI{foot_infection}"
}
},
"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": [
"wound",
"ischemia",
"foot_infection"
],
"properties": {
"wound": {
"type": "integer",
"description": "Wound grade 0-3 as assigned by the caller (Mills 2014): 0 no ulcer and no gangrene; 1 small, shallow ulcer(s) on the distal leg or foot without gangrene; 2 deeper ulcer with exposed bone, joint, or tendon, or gangrene limited to digits; 3 extensive deep ulcer involving forefoot and/or midfoot, full-thickness heel ulcer, or extensive gangrene. magent does not inspect wounds."
},
"ischemia": {
"type": "integer",
"description": "Ischemia grade 0-3 as assigned by the caller (Mills 2014): 0 none; 1 mild; 2 moderate; 3 severe. magent does not measure ABI, ankle pressure, or toe pressure and does not compute this grade from pressures."
},
"foot_infection": {
"type": "integer",
"description": "Foot infection grade 0-3 as assigned by the caller (Mills 2014): 0 no signs of infection; 1 infection involving only skin and subcutaneous tissue; 2 infection deeper than skin (abscess, osteomyelitis, septic arthritis, fasciitis) without SIRS; 3 infection with SIRS. magent does not diagnose infection."
}
}
}
},
"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/wifi",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"wound": 0,
"ischemia": 0,
"foot_infection": 0
},
{
"wound": 0,
"ischemia": 0,
"foot_infection": 0
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/wifi",
"count": 2,
"items": [
{
"wifi": "W0-I0-fI0",
"wound": 0,
"formula": "wifi",
"citation": {
"id": "mills-2014",
"doi": "10.1016/j.jvs.2013.08.003",
"pmid": "24126108",
"title": "The Society for Vascular Surgery Lower Extremity Threatened Limb Classification System: risk stratification based on wound, ischemia, and foot infection (WIfI).",
"source": "J Vasc Surg. 2014;59(1):220-234.e1-2",
"authors": "Mills JL, Conte MS, Armstrong DG, et al."
},
"criteria": [
{
"met": true,
"value": 0,
"factor": "wound"
},
{
"met": true,
"value": 0,
"factor": "ischemia"
},
{
"met": true,
"value": 0,
"factor": "foot_infection"
}
],
"ischemia": 0,
"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.",
"foot_infection": 0,
"formula_expression": "WIfI is three independent Mills 2014 SVS grades, not a summed total: wound 0-3 (0 no ulcer and no gangrene; 1 small shallow distal ulcer without gangrene; 2 deeper ulcer with exposed bone, joint, or tendon, or gangrene limited to digits; 3 extensive deep ulcer or extensive gangrene); ischemia 0-3 as assigned by the caller (0 none; 1 mild; 2 moderate; 3 severe); foot_infection 0-3 (0 none; 1 skin and subcutaneous only; 2 deeper than skin without SIRS; 3 infection with SIRS). Label is W{wound}-I{ischemia}-fI{foot_infection}"
},
{
"wifi": "W0-I0-fI0",
"wound": 0,
"formula": "wifi",
"citation": {
"id": "mills-2014",
"doi": "10.1016/j.jvs.2013.08.003",
"pmid": "24126108",
"title": "The Society for Vascular Surgery Lower Extremity Threatened Limb Classification System: risk stratification based on wound, ischemia, and foot infection (WIfI).",
"source": "J Vasc Surg. 2014;59(1):220-234.e1-2",
"authors": "Mills JL, Conte MS, Armstrong DG, et al."
},
"criteria": [
{
"met": true,
"value": 0,
"factor": "wound"
},
{
"met": true,
"value": 0,
"factor": "ischemia"
},
{
"met": true,
"value": 0,
"factor": "foot_infection"
}
],
"ischemia": 0,
"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.",
"foot_infection": 0,
"formula_expression": "WIfI is three independent Mills 2014 SVS grades, not a summed total: wound 0-3 (0 no ulcer and no gangrene; 1 small shallow distal ulcer without gangrene; 2 deeper ulcer with exposed bone, joint, or tendon, or gangrene limited to digits; 3 extensive deep ulcer or extensive gangrene); ischemia 0-3 as assigned by the caller (0 none; 1 mild; 2 moderate; 3 severe); foot_infection 0-3 (0 none; 1 skin and subcutaneous only; 2 deeper than skin without SIRS; 3 infection with SIRS). Label is W{wound}-I{ischemia}-fI{foot_infection}"
}
]
}
},
"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": [
"wound",
"ischemia",
"foot_infection"
],
"properties": {
"wound": {
"type": "integer",
"description": "Wound grade 0-3 as assigned by the caller (Mills 2014): 0 no ulcer and no gangrene; 1 small, shallow ulcer(s) on the distal leg or foot without gangrene; 2 deeper ulcer with exposed bone, joint, or tendon, or gangrene limited to digits; 3 extensive deep ulcer involving forefoot and/or midfoot, full-thickness heel ulcer, or extensive gangrene. magent does not inspect wounds."
},
"ischemia": {
"type": "integer",
"description": "Ischemia grade 0-3 as assigned by the caller (Mills 2014): 0 none; 1 mild; 2 moderate; 3 severe. magent does not measure ABI, ankle pressure, or toe pressure and does not compute this grade from pressures."
},
"foot_infection": {
"type": "integer",
"description": "Foot infection grade 0-3 as assigned by the caller (Mills 2014): 0 no signs of infection; 1 infection involving only skin and subcutaneous tissue; 2 infection deeper than skin (abscess, osteomyelitis, septic arthritis, fasciitis) without SIRS; 3 infection with SIRS. magent does not diagnose infection."
}
}
},
"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 13:18Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 10:15Z
- 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/wifi, 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.