magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
OtherLiveeip155:8453Exactvia cdp
Wat-1WithdrawalPediatricEmergencyCalculator
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 23:20Z
—
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/wat_1",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
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"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
],
"resource": {
"url": "https://api.magentlab.com/api/calc/wat_1",
"tags": [
"wat-1",
"withdrawal",
"pediatric",
"emergency",
"calculator"
],
"mimeType": "application/json",
"description": "Franck 2008 WAT-1 (Withdrawal Assessment Tool-1). Eleven caller-assigned integers: ten 0/1 signs plus time_to_calm 0-2. Sum 0-12. Cutoff WAT-1 ≥3 vs NRS ≥4. magent does not observe the child. Pediatric iatrogenic opioid/benzodiazepine withdrawal monitoring only. Not a diagnosis, not NAS, not COWS, not CIWA-Ar, and not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"state": 0,
"tremor": 0,
"sweating": 0,
"muscle_tone": 0,
"time_to_calm": 0,
"startle_to_touch": 0,
"loose_watery_stools": 0,
"temperature_gt_37_8": 0,
"yawning_or_sneezing": 0,
"vomiting_retching_gagging": 0,
"uncoordinated_repetitive_movement": 0
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "wat_1",
"citation": {
"id": "franck-2008",
"doi": "10.1097/PCC.0b013e31818c8328",
"pmid": "18838937",
"title": "The Withdrawal Assessment Tool-1 (WAT-1): an assessment instrument for monitoring opioid and benzodiazepine withdrawal symptoms in pediatric patients",
"source": "Pediatr Crit Care Med. 2008;9(6):573-580",
"authors": "Franck LS, Harris SK, Soetenga DJ, Amling JK, Curley MAQ"
},
"max_score": 12,
"wat1_ge_3": false,
"components": [
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"factor": "loose_watery_stools",
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},
{
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"factor": "vomiting_retching_gagging",
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{
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{
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{
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"factor": "tremor",
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{
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"factor": "sweating",
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"present": true
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{
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"factor": "uncoordinated_repetitive_movement",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "yawning_or_sneezing",
"points": 0,
"present": true
},
{
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"factor": "startle_to_touch",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "muscle_tone",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "time_to_calm",
"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": "WAT-1 = loose_watery_stools + vomiting_retching_gagging + temperature_gt_37_8 + state + tremor + sweating + uncoordinated_repetitive_movement + yawning_or_sneezing + startle_to_touch + muscle_tone + time_to_calm; ten signs 0 or 1; time_to_calm 0, 1, or 2; Franck 2008 Table 4; max 12; wat1_ge_3 iff total >= 3"
}
},
"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": [
"loose_watery_stools",
"vomiting_retching_gagging",
"temperature_gt_37_8",
"state",
"tremor",
"sweating",
"uncoordinated_repetitive_movement",
"yawning_or_sneezing",
"startle_to_touch",
"muscle_tone",
"time_to_calm"
],
"properties": {
"state": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus state (integer 0 or 1): 0 SBS ≤0 or asleep/awake/calm, 1 SBS ≥+1 or awake/distressed. magent does not observe the child."
},
"tremor": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus tremor (integer 0 or 1): 0 none/mild, 1 moderate/severe. magent does not observe the child."
},
"sweating": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus sweating (integer 0 or 1): 0 no, 1 any sweating. magent does not observe the child."
},
"muscle_tone": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 1-minute stimulus muscle tone (integer 0 or 1): 0 normal, 1 increased. magent does not observe the child."
},
"time_to_calm": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 post-stimulus time to gain a calm state (integer 0, 1, or 2): 0 if <2 min, 1 if 2-5 min, 2 if >5 min. magent does not observe the child."
},
"startle_to_touch": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 1-minute stimulus startle to touch (integer 0 or 1): 0 none/mild, 1 moderate/severe. magent does not observe the child."
},
"loose_watery_stools": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 loose/watery stools from the record in the previous 12 hours (integer 0 or 1): 0 none, 1 any loose or watery stools. magent does not observe the child."
},
"temperature_gt_37_8": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 modal temperature > 37.8°C from the record in the previous 12 hours (integer 0 or 1): 0 no, 1 yes. magent does not observe the child."
},
"yawning_or_sneezing": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus yawning or sneezing (integer 0 or 1): 0 none or 1 yawn/sneeze, 1 two or more. magent does not observe the child."
},
"vomiting_retching_gagging": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 vomiting, retching, or gagging from the record in the previous 12 hours (integer 0 or 1): 0 none, 1 any vomiting, retching, or gagging. magent does not observe the child."
},
"uncoordinated_repetitive_movement": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus uncoordinated or repetitive movement (integer 0 or 1): 0 none/mild, 1 moderate/severe. magent does not observe the child."
}
}
}
},
"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/wat_1",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"state": 0,
"tremor": 0,
"sweating": 0,
"muscle_tone": 0,
"time_to_calm": 0,
"startle_to_touch": 0,
"loose_watery_stools": 0,
"temperature_gt_37_8": 0,
"yawning_or_sneezing": 0,
"vomiting_retching_gagging": 0,
"uncoordinated_repetitive_movement": 0
},
{
"state": 0,
"tremor": 0,
"sweating": 0,
"muscle_tone": 0,
"time_to_calm": 0,
"startle_to_touch": 0,
"loose_watery_stools": 0,
"temperature_gt_37_8": 0,
"yawning_or_sneezing": 0,
"vomiting_retching_gagging": 0,
"uncoordinated_repetitive_movement": 0
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/wat_1",
"count": 2,
"items": [
{
"score": 0,
"formula": "wat_1",
"citation": {
"id": "franck-2008",
"doi": "10.1097/PCC.0b013e31818c8328",
"pmid": "18838937",
"title": "The Withdrawal Assessment Tool-1 (WAT-1): an assessment instrument for monitoring opioid and benzodiazepine withdrawal symptoms in pediatric patients",
"source": "Pediatr Crit Care Med. 2008;9(6):573-580",
"authors": "Franck LS, Harris SK, Soetenga DJ, Amling JK, Curley MAQ"
},
"max_score": 12,
"wat1_ge_3": false,
"components": [
{
"value": 0,
"factor": "loose_watery_stools",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "vomiting_retching_gagging",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "temperature_gt_37_8",
"points": 0,
"present": true
},
{
"value": 0,
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"points": 0,
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},
{
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},
{
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"points": 0,
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},
{
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},
{
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"points": 0,
"present": true
},
{
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"points": 0,
"present": true
},
{
"value": 0,
"factor": "muscle_tone",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "time_to_calm",
"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": "WAT-1 = loose_watery_stools + vomiting_retching_gagging + temperature_gt_37_8 + state + tremor + sweating + uncoordinated_repetitive_movement + yawning_or_sneezing + startle_to_touch + muscle_tone + time_to_calm; ten signs 0 or 1; time_to_calm 0, 1, or 2; Franck 2008 Table 4; max 12; wat1_ge_3 iff total >= 3"
},
{
"score": 0,
"formula": "wat_1",
"citation": {
"id": "franck-2008",
"doi": "10.1097/PCC.0b013e31818c8328",
"pmid": "18838937",
"title": "The Withdrawal Assessment Tool-1 (WAT-1): an assessment instrument for monitoring opioid and benzodiazepine withdrawal symptoms in pediatric patients",
"source": "Pediatr Crit Care Med. 2008;9(6):573-580",
"authors": "Franck LS, Harris SK, Soetenga DJ, Amling JK, Curley MAQ"
},
"max_score": 12,
"wat1_ge_3": false,
"components": [
{
"value": 0,
"factor": "loose_watery_stools",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "vomiting_retching_gagging",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "temperature_gt_37_8",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "state",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "tremor",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "sweating",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "uncoordinated_repetitive_movement",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "yawning_or_sneezing",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "startle_to_touch",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "muscle_tone",
"points": 0,
"present": true
},
{
"value": 0,
"factor": "time_to_calm",
"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": "WAT-1 = loose_watery_stools + vomiting_retching_gagging + temperature_gt_37_8 + state + tremor + sweating + uncoordinated_repetitive_movement + yawning_or_sneezing + startle_to_touch + muscle_tone + time_to_calm; ten signs 0 or 1; time_to_calm 0, 1, or 2; Franck 2008 Table 4; max 12; wat1_ge_3 iff total >= 3"
}
]
}
},
"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": [
"loose_watery_stools",
"vomiting_retching_gagging",
"temperature_gt_37_8",
"state",
"tremor",
"sweating",
"uncoordinated_repetitive_movement",
"yawning_or_sneezing",
"startle_to_touch",
"muscle_tone",
"time_to_calm"
],
"properties": {
"state": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus state (integer 0 or 1): 0 SBS ≤0 or asleep/awake/calm, 1 SBS ≥+1 or awake/distressed. magent does not observe the child."
},
"tremor": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus tremor (integer 0 or 1): 0 none/mild, 1 moderate/severe. magent does not observe the child."
},
"sweating": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus sweating (integer 0 or 1): 0 no, 1 any sweating. magent does not observe the child."
},
"muscle_tone": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 1-minute stimulus muscle tone (integer 0 or 1): 0 normal, 1 increased. magent does not observe the child."
},
"time_to_calm": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 post-stimulus time to gain a calm state (integer 0, 1, or 2): 0 if <2 min, 1 if 2-5 min, 2 if >5 min. magent does not observe the child."
},
"startle_to_touch": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 1-minute stimulus startle to touch (integer 0 or 1): 0 none/mild, 1 moderate/severe. magent does not observe the child."
},
"loose_watery_stools": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 loose/watery stools from the record in the previous 12 hours (integer 0 or 1): 0 none, 1 any loose or watery stools. magent does not observe the child."
},
"temperature_gt_37_8": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 modal temperature > 37.8°C from the record in the previous 12 hours (integer 0 or 1): 0 no, 1 yes. magent does not observe the child."
},
"yawning_or_sneezing": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus yawning or sneezing (integer 0 or 1): 0 none or 1 yawn/sneeze, 1 two or more. magent does not observe the child."
},
"vomiting_retching_gagging": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 vomiting, retching, or gagging from the record in the previous 12 hours (integer 0 or 1): 0 none, 1 any vomiting, retching, or gagging. magent does not observe the child."
},
"uncoordinated_repetitive_movement": {
"type": "integer",
"description": "Caller-assigned Franck 2008 Table 4 2-minute pre-stimulus uncoordinated or repetitive movement (integer 0 or 1): 0 none/mild, 1 moderate/severe. magent does not observe the child."
}
}
},
"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 23:20Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 20:15Z
- 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. 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/wat_1, 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.