magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
DataLiveeip155:8453Exactvia cdp
AceChildhood-adversityScreeningEmergencyCalculator
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 2026-09-01 17:32Z
—
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/ace",
"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/ace",
"tags": [
"ace",
"childhood-adversity",
"screening",
"emergency",
"calculator"
],
"mimeType": "application/json",
"description": "Felitti 1998 ACE Study: seven caller-assigned exposure categories (psychological abuse, physical abuse, sexual abuse, mother treated violently, household substance abuse, household mental illness, household incarceration), 1 point each, max 7. Returns ace_band 0, 1, 2, 3, or ge_4 (score ≥4). A category count, not a diagnosis, trauma inventory, or 10-item ACE-Q. magent does not interpret the items.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sexual_abuse": false,
"physical_abuse": false,
"psychological_abuse": false,
"household_incarceration": false,
"household_mental_illness": false,
"mother_treated_violently": false,
"household_substance_abuse": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "ace",
"ace_band": "0",
"citation": {
"id": "felitti-1998",
"doi": "10.1016/S0749-3797(98)00017-8",
"title": "Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. The Adverse Childhood Experiences (ACE) Study",
"source": "Am J Prev Med. 1998;14(4):245-258",
"authors": "Felitti VJ, Anda RF, Nordenberg D, et al."
},
"max_score": 7,
"components": [
{
"factor": "psychological_abuse",
"points": 0,
"present": false
},
{
"factor": "physical_abuse",
"points": 0,
"present": false
},
{
"factor": "sexual_abuse",
"points": 0,
"present": false
},
{
"factor": "mother_treated_violently",
"points": 0,
"present": false
},
{
"factor": "household_substance_abuse",
"points": 0,
"present": false
},
{
"factor": "household_mental_illness",
"points": 0,
"present": false
},
{
"factor": "household_incarceration",
"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.",
"formula_expression": "ACE = psychological_abuse + physical_abuse + sexual_abuse + mother_treated_violently + household_substance_abuse + household_mental_illness + household_incarceration; each 1 if true; max 7"
}
},
"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": [
"psychological_abuse",
"physical_abuse",
"sexual_abuse",
"mother_treated_violently",
"household_substance_abuse",
"household_mental_illness",
"household_incarceration"
],
"properties": {
"sexual_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study sexual-abuse category (an adult or person at least 5 years older touched or fondled the respondent in a sexual way, had the respondent touch their body in a sexual way, or attempted or completed oral, anal, or vaginal intercourse). true or false. magent does not interpret the item."
},
"physical_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study physical-abuse category (a parent or other adult in the household often or very often pushed, grabbed, slapped, or threw something at the respondent, or ever hit the respondent so hard that there were marks or injury). true or false. magent does not interpret the item."
},
"psychological_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study psychological-abuse category (a parent or other adult in the household often or very often swore at, insulted, or put the respondent down, or acted in a way that made the respondent afraid of being physically hurt). true or false. magent does not interpret the item."
},
"household_incarceration": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study criminal-behavior-in-household category (a household member went to prison). true or false. magent does not interpret the item."
},
"household_mental_illness": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study household mental-illness category (a household member was depressed or mentally ill, or a household member attempted suicide). true or false. magent does not interpret the item."
},
"mother_treated_violently": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study mother-treated-violently category (mother or stepmother was pushed, grabbed, slapped, had something thrown at her, kicked, bitten, hit with a fist or hard object, repeatedly hit, or threatened or hurt with a knife or gun). true or false. magent does not interpret the item."
},
"household_substance_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study household substance-abuse category (lived with anyone who was a problem drinker or alcoholic, or who used street drugs). true or false. magent does not interpret the item."
}
}
}
},
"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/ace",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"sexual_abuse": false,
"physical_abuse": false,
"psychological_abuse": false,
"household_incarceration": false,
"household_mental_illness": false,
"mother_treated_violently": false,
"household_substance_abuse": false
},
{
"sexual_abuse": false,
"physical_abuse": false,
"psychological_abuse": false,
"household_incarceration": false,
"household_mental_illness": false,
"mother_treated_violently": false,
"household_substance_abuse": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/ace",
"count": 2,
"items": [
{
"score": 0,
"formula": "ace",
"ace_band": "0",
"citation": {
"id": "felitti-1998",
"doi": "10.1016/S0749-3797(98)00017-8",
"title": "Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. The Adverse Childhood Experiences (ACE) Study",
"source": "Am J Prev Med. 1998;14(4):245-258",
"authors": "Felitti VJ, Anda RF, Nordenberg D, et al."
},
"max_score": 7,
"components": [
{
"factor": "psychological_abuse",
"points": 0,
"present": false
},
{
"factor": "physical_abuse",
"points": 0,
"present": false
},
{
"factor": "sexual_abuse",
"points": 0,
"present": false
},
{
"factor": "mother_treated_violently",
"points": 0,
"present": false
},
{
"factor": "household_substance_abuse",
"points": 0,
"present": false
},
{
"factor": "household_mental_illness",
"points": 0,
"present": false
},
{
"factor": "household_incarceration",
"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.",
"formula_expression": "ACE = psychological_abuse + physical_abuse + sexual_abuse + mother_treated_violently + household_substance_abuse + household_mental_illness + household_incarceration; each 1 if true; max 7"
},
{
"score": 0,
"formula": "ace",
"ace_band": "0",
"citation": {
"id": "felitti-1998",
"doi": "10.1016/S0749-3797(98)00017-8",
"title": "Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. The Adverse Childhood Experiences (ACE) Study",
"source": "Am J Prev Med. 1998;14(4):245-258",
"authors": "Felitti VJ, Anda RF, Nordenberg D, et al."
},
"max_score": 7,
"components": [
{
"factor": "psychological_abuse",
"points": 0,
"present": false
},
{
"factor": "physical_abuse",
"points": 0,
"present": false
},
{
"factor": "sexual_abuse",
"points": 0,
"present": false
},
{
"factor": "mother_treated_violently",
"points": 0,
"present": false
},
{
"factor": "household_substance_abuse",
"points": 0,
"present": false
},
{
"factor": "household_mental_illness",
"points": 0,
"present": false
},
{
"factor": "household_incarceration",
"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.",
"formula_expression": "ACE = psychological_abuse + physical_abuse + sexual_abuse + mother_treated_violently + household_substance_abuse + household_mental_illness + household_incarceration; each 1 if true; max 7"
}
]
}
},
"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": [
"psychological_abuse",
"physical_abuse",
"sexual_abuse",
"mother_treated_violently",
"household_substance_abuse",
"household_mental_illness",
"household_incarceration"
],
"properties": {
"sexual_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study sexual-abuse category (an adult or person at least 5 years older touched or fondled the respondent in a sexual way, had the respondent touch their body in a sexual way, or attempted or completed oral, anal, or vaginal intercourse). true or false. magent does not interpret the item."
},
"physical_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study physical-abuse category (a parent or other adult in the household often or very often pushed, grabbed, slapped, or threw something at the respondent, or ever hit the respondent so hard that there were marks or injury). true or false. magent does not interpret the item."
},
"psychological_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study psychological-abuse category (a parent or other adult in the household often or very often swore at, insulted, or put the respondent down, or acted in a way that made the respondent afraid of being physically hurt). true or false. magent does not interpret the item."
},
"household_incarceration": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study criminal-behavior-in-household category (a household member went to prison). true or false. magent does not interpret the item."
},
"household_mental_illness": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study household mental-illness category (a household member was depressed or mentally ill, or a household member attempted suicide). true or false. magent does not interpret the item."
},
"mother_treated_violently": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study mother-treated-violently category (mother or stepmother was pushed, grabbed, slapped, had something thrown at her, kicked, bitten, hit with a fist or hard object, repeatedly hit, or threatened or hurt with a knife or gun). true or false. magent does not interpret the item."
},
"household_substance_abuse": {
"type": "boolean",
"description": "Caller-assigned Felitti 1998 ACE Study household substance-abuse category (lived with anyone who was a problem drinker or alcoholic, or who used street drugs). true or false. magent does not interpret the item."
}
}
},
"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
- 2026-09-01 17:32Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 17:15Z
- 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. 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/ace, 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.