magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
DataLiveeip155:8453Exactvia cdp
MadrsDepressionMontgomeryEmergencyCalculator
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.
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/madrs",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
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"withdrawDelay": 86400,
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"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
],
"resource": {
"url": "https://api.magentlab.com/api/calc/madrs",
"tags": [
"madrs",
"depression",
"montgomery",
"emergency",
"calculator"
],
"mimeType": "application/json",
"description": "Montgomery 1979 MADRS: ten caller-assigned integers 0-6 (apparent sadness, reported sadness, inner tension, reduced sleep, reduced appetite, concentration difficulties, lassitude, inability to feel, pessimistic thoughts, suicidal thoughts). Sum 0-60. magent does not interview. Montgomery 1979 printed no total-score severity bands; later 0-6/7-19/20-34/35-60 cutoffs are not applied. Not a diagnosis, not Hamilton 1960, not PHQ-9, and not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lassitude": 0,
"inner_tension": 0,
"reduced_sleep": 0,
"apparent_sadness": 0,
"reduced_appetite": 0,
"reported_sadness": 0,
"inability_to_feel": 0,
"suicidal_thoughts": 0,
"pessimistic_thoughts": 0,
"concentration_difficulties": 0
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "madrs",
"citation": {
"id": "montgomery-1979",
"doi": "10.1192/bjp.134.4.382",
"pmid": "444788",
"title": "A new depression scale designed to be sensitive to change",
"source": "Br J Psychiatry. 1979;134:382-389",
"authors": "Montgomery SA, Åsberg M"
},
"max_score": 60,
"components": [
{
"value": 0,
"factor": "apparent_sadness",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reported_sadness",
"points": 0,
"present": true
},
{
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"factor": "inner_tension",
"points": 0,
"present": true
},
{
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"factor": "reduced_sleep",
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{
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"factor": "reduced_appetite",
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"present": true
},
{
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"factor": "concentration_difficulties",
"points": 0,
"present": true
},
{
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"factor": "lassitude",
"points": 0,
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{
"value": 0,
"factor": "inability_to_feel",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "pessimistic_thoughts",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "suicidal_thoughts",
"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.",
"formula_expression": "MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands"
}
},
"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": [
"apparent_sadness",
"reported_sadness",
"inner_tension",
"reduced_sleep",
"reduced_appetite",
"concentration_difficulties",
"lassitude",
"inability_to_feel",
"pessimistic_thoughts",
"suicidal_thoughts"
],
"properties": {
"lassitude": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 lassitude (integer 0-6): difficulty getting started or slowness initiating and performing everyday activities. magent does not interview the patient."
},
"inner_tension": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 inner tension (integer 0-6): ill-defined discomfort, edginess, inner turmoil, or mental tension mounting to panic, dread, or anguish. magent does not interview the patient."
},
"reduced_sleep": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 reduced sleep (integer 0-6): reduced duration or depth of sleep compared with the subject's own normal pattern when well. magent does not interview the patient."
},
"apparent_sadness": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 apparent sadness (integer 0-6): despondency, gloom, and despair reflected in speech, facial expression, and posture, rated by depth and inability to brighten up. magent does not interview the patient."
},
"reduced_appetite": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 reduced appetite (integer 0-6): loss of desire for food or the need to force oneself to eat compared with when well. magent does not interview the patient."
},
"reported_sadness": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 reported sadness (integer 0-6): reports of depressed mood, low spirits, despondency, or feeling beyond help, regardless of appearance. magent does not interview the patient."
},
"inability_to_feel": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 inability to feel (integer 0-6): reduced interest in surroundings or activities that normally give pleasure, or reduced ability to react with adequate emotion. magent does not interview the patient."
},
"suicidal_thoughts": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 suicidal thoughts (integer 0-6): feeling that life is not worth living, that a natural death would be welcome, suicidal thoughts, or preparations for suicide. A suicide attempt should not in itself influence the rating. magent does not interview the patient."
},
"pessimistic_thoughts": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 pessimistic thoughts (integer 0-6): thoughts of guilt, inferiority, self-reproach, sinfulness, remorse, or ruin. magent does not interview the patient."
},
"concentration_difficulties": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 concentration difficulties (integer 0-6): difficulty collecting one's thoughts mounting to incapacitating lack of concentration. magent does not interview the patient."
}
}
}
},
"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/madrs",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"lassitude": 0,
"inner_tension": 0,
"reduced_sleep": 0,
"apparent_sadness": 0,
"reduced_appetite": 0,
"reported_sadness": 0,
"inability_to_feel": 0,
"suicidal_thoughts": 0,
"pessimistic_thoughts": 0,
"concentration_difficulties": 0
},
{
"lassitude": 0,
"inner_tension": 0,
"reduced_sleep": 0,
"apparent_sadness": 0,
"reduced_appetite": 0,
"reported_sadness": 0,
"inability_to_feel": 0,
"suicidal_thoughts": 0,
"pessimistic_thoughts": 0,
"concentration_difficulties": 0
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/madrs",
"count": 2,
"items": [
{
"score": 0,
"formula": "madrs",
"citation": {
"id": "montgomery-1979",
"doi": "10.1192/bjp.134.4.382",
"pmid": "444788",
"title": "A new depression scale designed to be sensitive to change",
"source": "Br J Psychiatry. 1979;134:382-389",
"authors": "Montgomery SA, Åsberg M"
},
"max_score": 60,
"components": [
{
"value": 0,
"factor": "apparent_sadness",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reported_sadness",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "inner_tension",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reduced_sleep",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reduced_appetite",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "concentration_difficulties",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "lassitude",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "inability_to_feel",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "pessimistic_thoughts",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "suicidal_thoughts",
"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.",
"formula_expression": "MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands"
},
{
"score": 0,
"formula": "madrs",
"citation": {
"id": "montgomery-1979",
"doi": "10.1192/bjp.134.4.382",
"pmid": "444788",
"title": "A new depression scale designed to be sensitive to change",
"source": "Br J Psychiatry. 1979;134:382-389",
"authors": "Montgomery SA, Åsberg M"
},
"max_score": 60,
"components": [
{
"value": 0,
"factor": "apparent_sadness",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reported_sadness",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "inner_tension",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reduced_sleep",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "reduced_appetite",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "concentration_difficulties",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "lassitude",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "inability_to_feel",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "pessimistic_thoughts",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "suicidal_thoughts",
"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.",
"formula_expression": "MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands"
}
]
}
},
"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": [
"apparent_sadness",
"reported_sadness",
"inner_tension",
"reduced_sleep",
"reduced_appetite",
"concentration_difficulties",
"lassitude",
"inability_to_feel",
"pessimistic_thoughts",
"suicidal_thoughts"
],
"properties": {
"lassitude": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 lassitude (integer 0-6): difficulty getting started or slowness initiating and performing everyday activities. magent does not interview the patient."
},
"inner_tension": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 inner tension (integer 0-6): ill-defined discomfort, edginess, inner turmoil, or mental tension mounting to panic, dread, or anguish. magent does not interview the patient."
},
"reduced_sleep": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 reduced sleep (integer 0-6): reduced duration or depth of sleep compared with the subject's own normal pattern when well. magent does not interview the patient."
},
"apparent_sadness": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 apparent sadness (integer 0-6): despondency, gloom, and despair reflected in speech, facial expression, and posture, rated by depth and inability to brighten up. magent does not interview the patient."
},
"reduced_appetite": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 reduced appetite (integer 0-6): loss of desire for food or the need to force oneself to eat compared with when well. magent does not interview the patient."
},
"reported_sadness": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 reported sadness (integer 0-6): reports of depressed mood, low spirits, despondency, or feeling beyond help, regardless of appearance. magent does not interview the patient."
},
"inability_to_feel": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 inability to feel (integer 0-6): reduced interest in surroundings or activities that normally give pleasure, or reduced ability to react with adequate emotion. magent does not interview the patient."
},
"suicidal_thoughts": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 suicidal thoughts (integer 0-6): feeling that life is not worth living, that a natural death would be welcome, suicidal thoughts, or preparations for suicide. A suicide attempt should not in itself influence the rating. magent does not interview the patient."
},
"pessimistic_thoughts": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 pessimistic thoughts (integer 0-6): thoughts of guilt, inferiority, self-reproach, sinfulness, remorse, or ruin. magent does not interview the patient."
},
"concentration_difficulties": {
"type": "integer",
"description": "Caller-assigned Montgomery 1979 concentration difficulties (integer 0-6): difficulty collecting one's thoughts mounting to incapacitating lack of concentration. magent does not interview the patient."
}
}
},
"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 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/madrs, 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.