magent
Guilbert 2004 mAPI (PEAK Table I). Positive if 4+ wheeze episodes in one year (one MD-diagnosed) plus 1+ major or 2+ minor. Majors: parental asthma, MD atopic dermatitis, aeroallergen sensitization. Minors: milk/egg/peanut sensitization, wheezing unrelated to colds, eosinophils ≥4%. Not original API. Not m²API. Not an asthma diagnosis. magent does not examine the child. Not a medical device.
SearchLiveeip155:8453Exactvia cdp
MapiPediatric-wheezeRespiratoryPredictive-index
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 12:58Z
—
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/mapi",
"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/mapi",
"tags": [
"mapi",
"pediatric-wheeze",
"respiratory",
"predictive-index"
],
"mimeType": "application/json",
"description": "Guilbert 2004 mAPI (PEAK Table I). Positive if 4+ wheeze episodes in one year (one MD-diagnosed) plus 1+ major or 2+ minor. Majors: parental asthma, MD atopic dermatitis, aeroallergen sensitization. Minors: milk/egg/peanut sensitization, wheezing unrelated to colds, eosinophils ≥4%. Not original API. Not m²API. Not an asthma diagnosis. magent does not examine the child. Not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"parental_asthma": false,
"eosinophilia_ge_4pct": false,
"md_atopic_dermatitis": false,
"aeroallergen_sensitization": false,
"wheezing_unrelated_to_colds": false,
"four_or_more_wheeze_episodes": false,
"food_sensitization_milk_egg_peanut": false
}
},
"output": {
"type": "json",
"example": {
"formula": "mapi",
"citation": {
"id": "guilbert-2004",
"doi": "10.1016/j.jaci.2004.09.020",
"pmid": "15577824",
"title": "Atopic characteristics of children with recurrent wheezing at high risk for the development of childhood asthma",
"source": "J Allergy Clin Immunol. 2004;114(6):1282-1287",
"authors": "Guilbert TW, Morgan WJ, Zeiger RS, et al."
},
"criteria": [
{
"met": false,
"factor": "four_or_more_wheeze_episodes"
},
{
"met": false,
"factor": "parental_asthma"
},
{
"met": false,
"factor": "md_atopic_dermatitis"
},
{
"met": false,
"factor": "aeroallergen_sensitization"
},
{
"met": false,
"factor": "food_sensitization_milk_egg_peanut"
},
{
"met": false,
"factor": "wheezing_unrelated_to_colds"
},
{
"met": false,
"factor": "eosinophilia_ge_4pct"
}
],
"positive": 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.",
"major_count": 0,
"minor_count": 0,
"formula_expression": "positive iff four_or_more_wheeze_episodes and (major_count >= 1 or minor_count >= 2); majors parental_asthma, md_atopic_dermatitis, aeroallergen_sensitization; minors food_sensitization_milk_egg_peanut, wheezing_unrelated_to_colds, eosinophilia_ge_4pct (Guilbert 2004 PEAK Table I)",
"four_or_more_wheeze_episodes": 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": [
"four_or_more_wheeze_episodes",
"parental_asthma",
"md_atopic_dermatitis",
"aeroallergen_sensitization",
"food_sensitization_milk_egg_peanut",
"wheezing_unrelated_to_colds",
"eosinophilia_ge_4pct"
],
"properties": {
"parental_asthma": {
"type": "boolean",
"description": "Parental asthma as assigned by the caller. true or false. Major criterion (Guilbert 2004 PEAK Table I). magent does not take a family history."
},
"eosinophilia_ge_4pct": {
"type": "boolean",
"description": "Blood eosinophils ≥4% of WBC as assigned by the caller (Guilbert 2004 PEAK Table I; 4% or greater). true or false. Minor criterion. magent does not take an eosinophil percent and does not interpret a CBC. Not Castro-Rodriguez circulating eosinophils >4%."
},
"md_atopic_dermatitis": {
"type": "boolean",
"description": "Physician-diagnosed atopic dermatitis as assigned by the caller. true or false. Major criterion (Guilbert 2004 PEAK Table I). magent does not examine the child."
},
"aeroallergen_sensitization": {
"type": "boolean",
"description": "Allergic sensitization to at least one aeroallergen as assigned by the caller. true or false. Major criterion (Guilbert 2004 PEAK Table I). magent does not interpret allergy testing."
},
"wheezing_unrelated_to_colds": {
"type": "boolean",
"description": "Wheezing unrelated to colds as assigned by the caller. true or false. Minor criterion (Guilbert 2004 PEAK Table I). magent does not auscultate."
},
"four_or_more_wheeze_episodes": {
"type": "boolean",
"description": "Caller-assigned history of 4 or more wheezing episodes in one year with at least one physician-diagnosed episode (Guilbert 2004 PEAK Table I primary criterion). true or false. magent does not take a numeric episode count."
},
"food_sensitization_milk_egg_peanut": {
"type": "boolean",
"description": "Allergic sensitization to milk, egg, or peanuts as assigned by the caller. true or false. Minor criterion (Guilbert 2004 PEAK Table I). magent does not interpret allergy testing."
}
}
}
},
"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/mapi",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"parental_asthma": false,
"eosinophilia_ge_4pct": false,
"md_atopic_dermatitis": false,
"aeroallergen_sensitization": false,
"wheezing_unrelated_to_colds": false,
"four_or_more_wheeze_episodes": false,
"food_sensitization_milk_egg_peanut": false
},
{
"parental_asthma": false,
"eosinophilia_ge_4pct": false,
"md_atopic_dermatitis": false,
"aeroallergen_sensitization": false,
"wheezing_unrelated_to_colds": false,
"four_or_more_wheeze_episodes": false,
"food_sensitization_milk_egg_peanut": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/mapi",
"count": 2,
"items": [
{
"formula": "mapi",
"citation": {
"id": "guilbert-2004",
"doi": "10.1016/j.jaci.2004.09.020",
"pmid": "15577824",
"title": "Atopic characteristics of children with recurrent wheezing at high risk for the development of childhood asthma",
"source": "J Allergy Clin Immunol. 2004;114(6):1282-1287",
"authors": "Guilbert TW, Morgan WJ, Zeiger RS, et al."
},
"criteria": [
{
"met": false,
"factor": "four_or_more_wheeze_episodes"
},
{
"met": false,
"factor": "parental_asthma"
},
{
"met": false,
"factor": "md_atopic_dermatitis"
},
{
"met": false,
"factor": "aeroallergen_sensitization"
},
{
"met": false,
"factor": "food_sensitization_milk_egg_peanut"
},
{
"met": false,
"factor": "wheezing_unrelated_to_colds"
},
{
"met": false,
"factor": "eosinophilia_ge_4pct"
}
],
"positive": 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.",
"major_count": 0,
"minor_count": 0,
"formula_expression": "positive iff four_or_more_wheeze_episodes and (major_count >= 1 or minor_count >= 2); majors parental_asthma, md_atopic_dermatitis, aeroallergen_sensitization; minors food_sensitization_milk_egg_peanut, wheezing_unrelated_to_colds, eosinophilia_ge_4pct (Guilbert 2004 PEAK Table I)",
"four_or_more_wheeze_episodes": false
},
{
"formula": "mapi",
"citation": {
"id": "guilbert-2004",
"doi": "10.1016/j.jaci.2004.09.020",
"pmid": "15577824",
"title": "Atopic characteristics of children with recurrent wheezing at high risk for the development of childhood asthma",
"source": "J Allergy Clin Immunol. 2004;114(6):1282-1287",
"authors": "Guilbert TW, Morgan WJ, Zeiger RS, et al."
},
"criteria": [
{
"met": false,
"factor": "four_or_more_wheeze_episodes"
},
{
"met": false,
"factor": "parental_asthma"
},
{
"met": false,
"factor": "md_atopic_dermatitis"
},
{
"met": false,
"factor": "aeroallergen_sensitization"
},
{
"met": false,
"factor": "food_sensitization_milk_egg_peanut"
},
{
"met": false,
"factor": "wheezing_unrelated_to_colds"
},
{
"met": false,
"factor": "eosinophilia_ge_4pct"
}
],
"positive": 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.",
"major_count": 0,
"minor_count": 0,
"formula_expression": "positive iff four_or_more_wheeze_episodes and (major_count >= 1 or minor_count >= 2); majors parental_asthma, md_atopic_dermatitis, aeroallergen_sensitization; minors food_sensitization_milk_egg_peanut, wheezing_unrelated_to_colds, eosinophilia_ge_4pct (Guilbert 2004 PEAK Table I)",
"four_or_more_wheeze_episodes": 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": [
"four_or_more_wheeze_episodes",
"parental_asthma",
"md_atopic_dermatitis",
"aeroallergen_sensitization",
"food_sensitization_milk_egg_peanut",
"wheezing_unrelated_to_colds",
"eosinophilia_ge_4pct"
],
"properties": {
"parental_asthma": {
"type": "boolean",
"description": "Parental asthma as assigned by the caller. true or false. Major criterion (Guilbert 2004 PEAK Table I). magent does not take a family history."
},
"eosinophilia_ge_4pct": {
"type": "boolean",
"description": "Blood eosinophils ≥4% of WBC as assigned by the caller (Guilbert 2004 PEAK Table I; 4% or greater). true or false. Minor criterion. magent does not take an eosinophil percent and does not interpret a CBC. Not Castro-Rodriguez circulating eosinophils >4%."
},
"md_atopic_dermatitis": {
"type": "boolean",
"description": "Physician-diagnosed atopic dermatitis as assigned by the caller. true or false. Major criterion (Guilbert 2004 PEAK Table I). magent does not examine the child."
},
"aeroallergen_sensitization": {
"type": "boolean",
"description": "Allergic sensitization to at least one aeroallergen as assigned by the caller. true or false. Major criterion (Guilbert 2004 PEAK Table I). magent does not interpret allergy testing."
},
"wheezing_unrelated_to_colds": {
"type": "boolean",
"description": "Wheezing unrelated to colds as assigned by the caller. true or false. Minor criterion (Guilbert 2004 PEAK Table I). magent does not auscultate."
},
"four_or_more_wheeze_episodes": {
"type": "boolean",
"description": "Caller-assigned history of 4 or more wheezing episodes in one year with at least one physician-diagnosed episode (Guilbert 2004 PEAK Table I primary criterion). true or false. magent does not take a numeric episode count."
},
"food_sensitization_milk_egg_peanut": {
"type": "boolean",
"description": "Allergic sensitization to milk, egg, or peanuts as assigned by the caller. true or false. Minor criterion (Guilbert 2004 PEAK Table I). magent does not interpret allergy testing."
}
}
},
"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 12:58Z
- 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/mapi, 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.