magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Dataofflineeip155:8453Exactvia cdp
HscoreHematologyHemophagocytosisCalculator
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 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 13:43Z
—
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/hscore",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
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{
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"amount": "5000",
"scheme": "batch-settlement",
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],
"resource": {
"url": "https://api.magentlab.com/api/calc/hscore",
"tags": [
"hscore",
"hematology",
"hemophagocytosis",
"calculator"
],
"mimeType": "application/json",
"description": "Fardet 2014 HScore (Table 4; max 337) from nine caller-assigned items: immunosuppression 18, temperature 0/33/49, organomegaly 0/23/38, cytopenia lineages 0/24/34 (1/2/3), ferritin 0/35/50, triglycerides 0/44/64, fibrinogen 0/30, SGOT 0/19, marrow hemophagocytosis 35. Best cutoff 169. magent does not take raw labs; all nine required. Not HLH-2004. Not a diagnosis. Not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sgot_band": "lt_30",
"organomegaly": "none",
"ferritin_band": "lt_2000",
"fibrinogen_band": "gt_2_5",
"temperature_band": "lt_38_4",
"immunosuppression": false,
"triglyceride_band": "lt_1_5",
"cytopenia_lineages": 1,
"marrow_hemophagocytosis": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"formula": "hscore",
"citation": {
"id": "fardet-2014",
"doi": "10.1002/art.38690",
"pmid": "24782338",
"title": "Development and validation of the HScore, a score for the diagnosis of reactive hemophagocytic syndrome",
"source": "Arthritis Rheumatol. 2014;66(9):2613-2620",
"authors": "Fardet L, Galicier L, Lambotte O, Marzac C, Aumont C, Chahwan D, Coppo P, Hejblum G"
},
"max_score": 337,
"components": [
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},
{
"value": "lt_38_4",
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},
{
"value": "none",
"factor": "organomegaly",
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},
{
"value": 1,
"factor": "cytopenia_lineages",
"points": 0,
"present": false
},
{
"value": "lt_2000",
"factor": "ferritin_band",
"points": 0,
"present": false
},
{
"value": "lt_1_5",
"factor": "triglyceride_band",
"points": 0,
"present": false
},
{
"value": "gt_2_5",
"factor": "fibrinogen_band",
"points": 0,
"present": false
},
{
"value": "lt_30",
"factor": "sgot_band",
"points": 0,
"present": false
},
{
"factor": "marrow_hemophagocytosis",
"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.",
"score_ge_169": false,
"formula_expression": "HScore = immunosuppression (true 18) + temperature_band (lt_38_4 0, 38_4_to_39_4 33, gt_39_4 49) + organomegaly (none 0, hepato_or_spleno 23, hepato_and_spleno 38) + cytopenia_lineages (1 → 0, 2 → 24, 3 → 34) + ferritin_band (lt_2000 0, 2000_to_6000 35, gt_6000 50) + triglyceride_band (lt_1_5 0, 1_5_to_4 44, gt_4 64) + fibrinogen_band (gt_2_5 0, le_2_5 30) + sgot_band (lt_30 0, ge_30 19) + marrow_hemophagocytosis (true 35); Fardet 2014 Table 4; max 337; score_ge_169 iff total >= 169 (Table 5 best cutoff)"
}
},
"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": [
"immunosuppression",
"temperature_band",
"organomegaly",
"cytopenia_lineages",
"ferritin_band",
"triglyceride_band",
"fibrinogen_band",
"sgot_band",
"marrow_hemophagocytosis"
],
"properties": {
"sgot_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 SGOT/AST band (IU/L). lt_30 (<30) scores 0; ge_30 (≥30) scores 19. magent does not take a raw SGOT."
},
"organomegaly": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 organomegaly. none scores 0; hepato_or_spleno (hepatomegaly or splenomegaly) scores 23; hepato_and_spleno (hepatomegaly and splenomegaly) scores 38. magent does not examine the patient."
},
"ferritin_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 ferritin band (ng/ml). lt_2000 (<2000) scores 0; 2000_to_6000 (2000–6000) scores 35; gt_6000 (>6000) scores 50. magent does not take a raw ferritin."
},
"fibrinogen_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 fibrinogen band (g/L). gt_2_5 (>2.5) scores 0; le_2_5 (≤2.5) scores 30. magent does not take a raw fibrinogen."
},
"temperature_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 temperature band (°C). lt_38_4 (<38.4) scores 0; 38_4_to_39_4 (38.4–39.4) scores 33; gt_39_4 (>39.4) scores 49. magent does not take a raw temperature."
},
"immunosuppression": {
"type": "boolean",
"description": "Known underlying immunosuppression as assigned by the caller (Fardet 2014 Table 4 footnote: HIV positive or long-term glucocorticoids, cyclosporine, or azathioprine). true scores 18; false scores 0."
},
"triglyceride_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 triglyceride band (mmol/L). lt_1_5 (<1.5) scores 0; 1_5_to_4 (1.5–4.0) scores 44; gt_4 (>4.0) scores 64. magent does not take a raw triglyceride."
},
"cytopenia_lineages": {
"type": "integer",
"description": "Caller-assigned number of cytopenia lineages (integer 1, 2, or 3). 1 scores 0; 2 scores 24; 3 scores 34. Zero cytopenias were not assessed in Fardet 2014 and are rejected. Cytopenia definition (paper footnote, caller already applied): Hb ≤9.2 g/dL and/or WBC ≤5000/mm³ and/or platelets ≤110000/mm³. magent does not take those labs."
},
"marrow_hemophagocytosis": {
"type": "boolean",
"description": "Hemophagocytosis features on bone marrow aspirate as assigned by the caller (Fardet 2014 Table 4). true scores 35; false scores 0. Not required for a diagnosis; this tool is not a diagnosis."
}
}
}
},
"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
[
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"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/hscore",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"sgot_band": "lt_30",
"organomegaly": "none",
"ferritin_band": "lt_2000",
"fibrinogen_band": "gt_2_5",
"temperature_band": "lt_38_4",
"immunosuppression": false,
"triglyceride_band": "lt_1_5",
"cytopenia_lineages": 1,
"marrow_hemophagocytosis": false
},
{
"sgot_band": "lt_30",
"organomegaly": "none",
"ferritin_band": "lt_2000",
"fibrinogen_band": "gt_2_5",
"temperature_band": "lt_38_4",
"immunosuppression": false,
"triglyceride_band": "lt_1_5",
"cytopenia_lineages": 1,
"marrow_hemophagocytosis": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/hscore",
"count": 2,
"items": [
{
"score": 0,
"formula": "hscore",
"citation": {
"id": "fardet-2014",
"doi": "10.1002/art.38690",
"pmid": "24782338",
"title": "Development and validation of the HScore, a score for the diagnosis of reactive hemophagocytic syndrome",
"source": "Arthritis Rheumatol. 2014;66(9):2613-2620",
"authors": "Fardet L, Galicier L, Lambotte O, Marzac C, Aumont C, Chahwan D, Coppo P, Hejblum G"
},
"max_score": 337,
"components": [
{
"factor": "immunosuppression",
"points": 0,
"present": false
},
{
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"factor": "temperature_band",
"points": 0,
"present": false
},
{
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"factor": "organomegaly",
"points": 0,
"present": false
},
{
"value": 1,
"factor": "cytopenia_lineages",
"points": 0,
"present": false
},
{
"value": "lt_2000",
"factor": "ferritin_band",
"points": 0,
"present": false
},
{
"value": "lt_1_5",
"factor": "triglyceride_band",
"points": 0,
"present": false
},
{
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"factor": "fibrinogen_band",
"points": 0,
"present": false
},
{
"value": "lt_30",
"factor": "sgot_band",
"points": 0,
"present": false
},
{
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"points": 0,
"present": false
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],
"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.",
"score_ge_169": false,
"formula_expression": "HScore = immunosuppression (true 18) + temperature_band (lt_38_4 0, 38_4_to_39_4 33, gt_39_4 49) + organomegaly (none 0, hepato_or_spleno 23, hepato_and_spleno 38) + cytopenia_lineages (1 → 0, 2 → 24, 3 → 34) + ferritin_band (lt_2000 0, 2000_to_6000 35, gt_6000 50) + triglyceride_band (lt_1_5 0, 1_5_to_4 44, gt_4 64) + fibrinogen_band (gt_2_5 0, le_2_5 30) + sgot_band (lt_30 0, ge_30 19) + marrow_hemophagocytosis (true 35); Fardet 2014 Table 4; max 337; score_ge_169 iff total >= 169 (Table 5 best cutoff)"
},
{
"score": 0,
"formula": "hscore",
"citation": {
"id": "fardet-2014",
"doi": "10.1002/art.38690",
"pmid": "24782338",
"title": "Development and validation of the HScore, a score for the diagnosis of reactive hemophagocytic syndrome",
"source": "Arthritis Rheumatol. 2014;66(9):2613-2620",
"authors": "Fardet L, Galicier L, Lambotte O, Marzac C, Aumont C, Chahwan D, Coppo P, Hejblum G"
},
"max_score": 337,
"components": [
{
"factor": "immunosuppression",
"points": 0,
"present": false
},
{
"value": "lt_38_4",
"factor": "temperature_band",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "organomegaly",
"points": 0,
"present": false
},
{
"value": 1,
"factor": "cytopenia_lineages",
"points": 0,
"present": false
},
{
"value": "lt_2000",
"factor": "ferritin_band",
"points": 0,
"present": false
},
{
"value": "lt_1_5",
"factor": "triglyceride_band",
"points": 0,
"present": false
},
{
"value": "gt_2_5",
"factor": "fibrinogen_band",
"points": 0,
"present": false
},
{
"value": "lt_30",
"factor": "sgot_band",
"points": 0,
"present": false
},
{
"factor": "marrow_hemophagocytosis",
"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.",
"score_ge_169": false,
"formula_expression": "HScore = immunosuppression (true 18) + temperature_band (lt_38_4 0, 38_4_to_39_4 33, gt_39_4 49) + organomegaly (none 0, hepato_or_spleno 23, hepato_and_spleno 38) + cytopenia_lineages (1 → 0, 2 → 24, 3 → 34) + ferritin_band (lt_2000 0, 2000_to_6000 35, gt_6000 50) + triglyceride_band (lt_1_5 0, 1_5_to_4 44, gt_4 64) + fibrinogen_band (gt_2_5 0, le_2_5 30) + sgot_band (lt_30 0, ge_30 19) + marrow_hemophagocytosis (true 35); Fardet 2014 Table 4; max 337; score_ge_169 iff total >= 169 (Table 5 best cutoff)"
}
]
}
},
"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": [
"immunosuppression",
"temperature_band",
"organomegaly",
"cytopenia_lineages",
"ferritin_band",
"triglyceride_band",
"fibrinogen_band",
"sgot_band",
"marrow_hemophagocytosis"
],
"properties": {
"sgot_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 SGOT/AST band (IU/L). lt_30 (<30) scores 0; ge_30 (≥30) scores 19. magent does not take a raw SGOT."
},
"organomegaly": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 organomegaly. none scores 0; hepato_or_spleno (hepatomegaly or splenomegaly) scores 23; hepato_and_spleno (hepatomegaly and splenomegaly) scores 38. magent does not examine the patient."
},
"ferritin_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 ferritin band (ng/ml). lt_2000 (<2000) scores 0; 2000_to_6000 (2000–6000) scores 35; gt_6000 (>6000) scores 50. magent does not take a raw ferritin."
},
"fibrinogen_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 fibrinogen band (g/L). gt_2_5 (>2.5) scores 0; le_2_5 (≤2.5) scores 30. magent does not take a raw fibrinogen."
},
"temperature_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 temperature band (°C). lt_38_4 (<38.4) scores 0; 38_4_to_39_4 (38.4–39.4) scores 33; gt_39_4 (>39.4) scores 49. magent does not take a raw temperature."
},
"immunosuppression": {
"type": "boolean",
"description": "Known underlying immunosuppression as assigned by the caller (Fardet 2014 Table 4 footnote: HIV positive or long-term glucocorticoids, cyclosporine, or azathioprine). true scores 18; false scores 0."
},
"triglyceride_band": {
"type": "string",
"description": "Caller-assigned Fardet 2014 Table 4 triglyceride band (mmol/L). lt_1_5 (<1.5) scores 0; 1_5_to_4 (1.5–4.0) scores 44; gt_4 (>4.0) scores 64. magent does not take a raw triglyceride."
},
"cytopenia_lineages": {
"type": "integer",
"description": "Caller-assigned number of cytopenia lineages (integer 1, 2, or 3). 1 scores 0; 2 scores 24; 3 scores 34. Zero cytopenias were not assessed in Fardet 2014 and are rejected. Cytopenia definition (paper footnote, caller already applied): Hb ≤9.2 g/dL and/or WBC ≤5000/mm³ and/or platelets ≤110000/mm³. magent does not take those labs."
},
"marrow_hemophagocytosis": {
"type": "boolean",
"description": "Hemophagocytosis features on bone marrow aspirate as assigned by the caller (Fardet 2014 Table 4). true scores 35; false scores 0. Not required for a diagnosis; this tool is not a diagnosis."
}
}
},
"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 13:43Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 20:45Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 0
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. 13 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/hscore, 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.