magent
Rockall 1996 complete (post-endoscopy) score after acute upper GI haemorrhage: age <60 0, 60-79 1, >=80 2; shock SBP<100 2 (hypotension; tachycardia not added), else HR>=100 1, else 0; comorbidity none 0, cardiac 2, renal/liver/metastatic 3; diagnosis none or mallory_weiss 0, other 1, malignancy 2; stigmata none_or_spot 0, blood_clot_vessel 2. Max 11. Not pre-endoscopy-only Rockall, AIMS65, or GBS. Caller assigns comorbidity, diagnosis, and stigmata.
DataLiveeip155:8453Exactvia cdp
RockallGiBleedScoreEndoscopy
Calls · 30d
3→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 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.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 13:07Z
—
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/rockall",
"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/rockall",
"tags": [
"rockall",
"gi",
"bleed",
"score",
"endoscopy"
],
"mimeType": "application/json",
"description": "Rockall 1996 complete (post-endoscopy) score after acute upper GI haemorrhage: age <60 0, 60-79 1, >=80 2; shock SBP<100 2 (hypotension; tachycardia not added), else HR>=100 1, else 0; comorbidity none 0, cardiac 2, renal/liver/metastatic 3; diagnosis none or mallory_weiss 0, other 1, malignancy 2; stigmata none_or_spot 0, blood_clot_vessel 2. Max 11. Not pre-endoscopy-only Rockall, AIMS65, or GBS. Caller assigns comorbidity, diagnosis, and stigmata.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 50,
"stigmata": "none_or_spot",
"diagnosis": "none",
"comorbidity": "none",
"heart_rate_bpm": 80,
"systolic_mm_hg": 120
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "rockall",
"citation": {
"id": "rockall-1996",
"doi": "10.1136/gut.38.3.316",
"pmid": "8675081",
"title": "Risk assessment after acute upper gastrointestinal haemorrhage",
"source": "Gut. 1996;38(3):316-321",
"authors": "Rockall TA, Logan RF, Devlin HB, Northfield TC"
},
"stigmata": "none_or_spot",
"age_years": 50,
"diagnosis": "none",
"max_score": 11,
"components": [
{
"value": 50,
"factor": "age",
"points": 0,
"present": false
},
{
"value": {
"heart_rate_bpm": 80,
"systolic_mm_hg": 120
},
"factor": "shock",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "comorbidity",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "diagnosis",
"points": 0,
"present": false
},
{
"value": "none_or_spot",
"factor": "stigmata",
"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.",
"comorbidity": "none",
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"formula_expression": "Rockall = age (<60: 0, 60-79: 1, >=80: 2) + shock (SBP<100: 2; else HR>=100: 1; else 0) + comorbidity (none: 0, cardiac: 2, renal_liver_metastatic: 3) + diagnosis (none: 0, mallory_weiss: 0, other: 1, malignancy: 2) + stigmata (none_or_spot: 0, blood_clot_vessel: 2); max 11"
}
},
"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": [
"age",
"heart_rate_bpm",
"systolic_mm_hg",
"comorbidity",
"diagnosis",
"stigmata"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). <60 scores 0; 60-79 scores 1; ≥80 scores 2. 59 does not score; 60 scores 1; 79 scores 1; 80 scores 2."
},
"stigmata": {
"type": "string",
"description": "Caller-assigned stigmata of recent haemorrhage: none_or_spot (0; none or dark spot only) or blood_clot_vessel (2; blood in the upper GI tract, adherent clot, visible or spurting vessel). magent does not assign stigmata."
},
"diagnosis": {
"type": "string",
"description": "Caller-assigned diagnosis: none (0; no lesion identified and no stigmata of recent haemorrhage), mallory_weiss (0), other (1; all other diagnoses), or malignancy (2; malignancy of the upper GI tract). magent does not assign diagnosis."
},
"comorbidity": {
"type": "string",
"description": "Caller-assigned comorbidity: none (0), cardiac (2; cardiac failure, IHD, or any major comorbidity), or renal_liver_metastatic (3; renal failure, liver failure, or disseminated malignancy). magent does not assign comorbidity."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats per minute (integer 30-220). With SBP ≥100, HR ≥100 scores 1 (tachycardia); 99 does not. Not added when SBP <100."
},
"systolic_mm_hg": {
"type": "number",
"description": "Systolic blood pressure in mm Hg (50-250). SBP <100 scores 2 (hypotension) and tachycardia is not added; 100 does not score hypotension."
}
}
}
},
"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/rockall",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 50,
"stigmata": "none_or_spot",
"diagnosis": "none",
"comorbidity": "none",
"heart_rate_bpm": 80,
"systolic_mm_hg": 120
},
{
"age": 50,
"stigmata": "none_or_spot",
"diagnosis": "none",
"comorbidity": "none",
"heart_rate_bpm": 80,
"systolic_mm_hg": 120
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/rockall",
"count": 2,
"items": [
{
"score": 0,
"formula": "rockall",
"citation": {
"id": "rockall-1996",
"doi": "10.1136/gut.38.3.316",
"pmid": "8675081",
"title": "Risk assessment after acute upper gastrointestinal haemorrhage",
"source": "Gut. 1996;38(3):316-321",
"authors": "Rockall TA, Logan RF, Devlin HB, Northfield TC"
},
"stigmata": "none_or_spot",
"age_years": 50,
"diagnosis": "none",
"max_score": 11,
"components": [
{
"value": 50,
"factor": "age",
"points": 0,
"present": false
},
{
"value": {
"heart_rate_bpm": 80,
"systolic_mm_hg": 120
},
"factor": "shock",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "comorbidity",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "diagnosis",
"points": 0,
"present": false
},
{
"value": "none_or_spot",
"factor": "stigmata",
"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.",
"comorbidity": "none",
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"formula_expression": "Rockall = age (<60: 0, 60-79: 1, >=80: 2) + shock (SBP<100: 2; else HR>=100: 1; else 0) + comorbidity (none: 0, cardiac: 2, renal_liver_metastatic: 3) + diagnosis (none: 0, mallory_weiss: 0, other: 1, malignancy: 2) + stigmata (none_or_spot: 0, blood_clot_vessel: 2); max 11"
},
{
"score": 0,
"formula": "rockall",
"citation": {
"id": "rockall-1996",
"doi": "10.1136/gut.38.3.316",
"pmid": "8675081",
"title": "Risk assessment after acute upper gastrointestinal haemorrhage",
"source": "Gut. 1996;38(3):316-321",
"authors": "Rockall TA, Logan RF, Devlin HB, Northfield TC"
},
"stigmata": "none_or_spot",
"age_years": 50,
"diagnosis": "none",
"max_score": 11,
"components": [
{
"value": 50,
"factor": "age",
"points": 0,
"present": false
},
{
"value": {
"heart_rate_bpm": 80,
"systolic_mm_hg": 120
},
"factor": "shock",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "comorbidity",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "diagnosis",
"points": 0,
"present": false
},
{
"value": "none_or_spot",
"factor": "stigmata",
"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.",
"comorbidity": "none",
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"formula_expression": "Rockall = age (<60: 0, 60-79: 1, >=80: 2) + shock (SBP<100: 2; else HR>=100: 1; else 0) + comorbidity (none: 0, cardiac: 2, renal_liver_metastatic: 3) + diagnosis (none: 0, mallory_weiss: 0, other: 1, malignancy: 2) + stigmata (none_or_spot: 0, blood_clot_vessel: 2); max 11"
}
]
}
},
"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": [
"age",
"heart_rate_bpm",
"systolic_mm_hg",
"comorbidity",
"diagnosis",
"stigmata"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (18-120). <60 scores 0; 60-79 scores 1; ≥80 scores 2. 59 does not score; 60 scores 1; 79 scores 1; 80 scores 2."
},
"stigmata": {
"type": "string",
"description": "Caller-assigned stigmata of recent haemorrhage: none_or_spot (0; none or dark spot only) or blood_clot_vessel (2; blood in the upper GI tract, adherent clot, visible or spurting vessel). magent does not assign stigmata."
},
"diagnosis": {
"type": "string",
"description": "Caller-assigned diagnosis: none (0; no lesion identified and no stigmata of recent haemorrhage), mallory_weiss (0), other (1; all other diagnoses), or malignancy (2; malignancy of the upper GI tract). magent does not assign diagnosis."
},
"comorbidity": {
"type": "string",
"description": "Caller-assigned comorbidity: none (0), cardiac (2; cardiac failure, IHD, or any major comorbidity), or renal_liver_metastatic (3; renal failure, liver failure, or disseminated malignancy). magent does not assign comorbidity."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats per minute (integer 30-220). With SBP ≥100, HR ≥100 scores 1 (tachycardia); 99 does not. Not added when SBP <100."
},
"systolic_mm_hg": {
"type": "number",
"description": "Systolic blood pressure in mm Hg (50-250). SBP <100 scores 2 (hypotension) and tachycardia is not added; 100 does not score hypotension."
}
}
},
"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 13:07Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 01:15Z
- 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. 15 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/rockall, 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.