magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
OtherLiveeip155:8453Exactvia cdp
Imwg-2014MyelomaHematologyCrabCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 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 13:42Z
—
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/imwg_myeloma",
"assetTransferMethod": "eip3009"
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"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
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"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
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}
],
"resource": {
"url": "https://api.magentlab.com/api/calc/imwg_myeloma",
"tags": [
"imwg-2014",
"myeloma",
"hematology",
"crab",
"calculator"
],
"mimeType": "application/json",
"description": "IMWG 2014 myeloma requiring therapy (Rajkumar 2014). Met when clonal BMPC ≥10% or biopsy-proven plasmacytoma plus ≥1 MDE: hypercalcemia, renal insufficiency, anemia, osteolytic lesion (CRAB), or BMPC ≥60%, involved:uninvolved FLC ratio ≥100 with involved FLC ≥100 mg/L, or >1 focal MRI lesion ≥5 mm (SLiM). Not a diagnosis. Not smouldering MM, MGUS, POEMS, or amyloid. Not Greipp ISS or R-ISS. magent does not assay calcium, creatinine, hemoglobin, or FLC, and does not read MRI.",
"serviceName": "magent"
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"extensions": {
"bazaar": {
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"input": {
"type": "http",
"method": "GET",
"queryParams": {
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"bmpc_ge_60": false,
"hypercalcemia": true,
"mri_gt_1_focal": false,
"flc_ratio_ge_100": false,
"osteolytic_lesion": false,
"renal_insufficiency": false,
"clonal_bmpc_ge_10_or_plasmacytoma": true
}
},
"output": {
"type": "json",
"example": {
"anemia": false,
"any_mde": true,
"formula": "imwg_myeloma",
"myeloma": true,
"citation": {
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"doi": "10.1016/S1470-2045(14)70442-5",
"pmid": "25439696",
"title": "International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma",
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"authors": "Rajkumar SV, Dimopoulos MA, Palumbo A, Blade J, Merlini G, Mateos MV, Kumar S, Hillengass J, Kastritis E, Richardson P, Landgren O, Paiva B, Dispenzieri A, Weiss B, LeLeu X, Zweegman S, Lonial S, Rosinol L, Zamagni E, Jagannath S, Sezer O, Kristinsson SY, Caers J, Usmani SZ, Lahuerta JJ, Johnsen HE, Beksac M, Cavo M, Goldschmidt H, Terpos E, Kyle RA, Anderson KC, Durie BGM, San Miguel JF"
},
"criteria": [
{
"met": true,
"factor": "clonal_bmpc_ge_10_or_plasmacytoma"
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{
"met": true,
"factor": "hypercalcemia"
},
{
"met": false,
"factor": "renal_insufficiency"
},
{
"met": false,
"factor": "anemia"
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{
"met": false,
"factor": "osteolytic_lesion"
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{
"met": false,
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{
"met": false,
"factor": "flc_ratio_ge_100"
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{
"met": false,
"factor": "mri_gt_1_focal"
},
{
"met": true,
"factor": "any_mde"
}
],
"bmpc_ge_60": 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.",
"hypercalcemia": true,
"mri_gt_1_focal": false,
"flc_ratio_ge_100": false,
"osteolytic_lesion": false,
"formula_expression": "myeloma iff clonal_bmpc_ge_10_or_plasmacytoma and ≥1 myeloma-defining event (hypercalcemia, renal_insufficiency, anemia, osteolytic_lesion, bmpc_ge_60, flc_ratio_ge_100, or mri_gt_1_focal) (Rajkumar 2014 IMWG definition of multiple myeloma requiring therapy). Not a diagnosis. Not smouldering MM, MGUS, POEMS, or amyloid. Not Greipp ISS. Not R-ISS",
"renal_insufficiency": false,
"clonal_bmpc_ge_10_or_plasmacytoma": true
}
},
"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": [
"clonal_bmpc_ge_10_or_plasmacytoma",
"hypercalcemia",
"renal_insufficiency",
"anemia",
"osteolytic_lesion",
"bmpc_ge_60",
"flc_ratio_ge_100",
"mri_gt_1_focal"
],
"properties": {
"anemia": {
"type": "boolean",
"description": "Anemia as assigned by the caller (Rajkumar 2014 CRAB): hemoglobin value >20 g/L below the lower limit of normal or hemoglobin <100 g/L. true or false. magent does not assay hemoglobin."
},
"bmpc_ge_60": {
"type": "boolean",
"description": "Clonal bone marrow plasma cells ≥60%, as assigned by the caller (Rajkumar 2014 SLiM). true or false. magent does not read a marrow."
},
"hypercalcemia": {
"type": "boolean",
"description": "Hypercalcemia as assigned by the caller (Rajkumar 2014 CRAB): serum calcium >0.25 mmol/L (>1 mg/dL) above the upper limit of normal or >2.75 mmol/L (>11 mg/dL). true or false. magent does not assay calcium."
},
"mri_gt_1_focal": {
"type": "boolean",
"description": ">1 focal lesion on MRI, each ≥5 mm, as assigned by the caller (Rajkumar 2014 SLiM). true or false. magent does not read MRI."
},
"flc_ratio_ge_100": {
"type": "boolean",
"description": "Involved:uninvolved serum free light-chain ratio ≥100 and involved free light chain ≥100 mg/L, as assigned by the caller as this one flag (Rajkumar 2014 SLiM). true or false. magent does not assay free light chains."
},
"osteolytic_lesion": {
"type": "boolean",
"description": "One or more osteolytic lesions on skeletal radiography, CT, or PET-CT, as assigned by the caller (Rajkumar 2014 CRAB). If marrow clonal plasma cells are <10%, more than one bone lesion is required to distinguish solitary plasmacytoma; that is the caller’s assignment of this flag. true or false. magent does not read imaging."
},
"renal_insufficiency": {
"type": "boolean",
"description": "Renal insufficiency as assigned by the caller (Rajkumar 2014 CRAB): creatinine clearance <40 mL/min or serum creatinine >177 µmol/L (>2 mg/dL). true or false. magent does not assay creatinine."
},
"clonal_bmpc_ge_10_or_plasmacytoma": {
"type": "boolean",
"description": "Clonal bone marrow plasma cells ≥10% or biopsy-proven bony or extramedullary plasmacytoma, as assigned by the caller (Rajkumar 2014 IMWG entry for myeloma requiring therapy). true or false. When false, myeloma is false even if a myeloma-defining event is true. magent does not read a marrow or biopsy."
}
}
}
},
"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/imwg_myeloma",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"anemia": false,
"bmpc_ge_60": false,
"hypercalcemia": true,
"mri_gt_1_focal": false,
"flc_ratio_ge_100": false,
"osteolytic_lesion": false,
"renal_insufficiency": false,
"clonal_bmpc_ge_10_or_plasmacytoma": true
},
{
"anemia": false,
"bmpc_ge_60": false,
"hypercalcemia": true,
"mri_gt_1_focal": false,
"flc_ratio_ge_100": false,
"osteolytic_lesion": false,
"renal_insufficiency": false,
"clonal_bmpc_ge_10_or_plasmacytoma": true
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/imwg_myeloma",
"count": 2,
"items": [
{
"anemia": false,
"any_mde": true,
"formula": "imwg_myeloma",
"myeloma": true,
"citation": {
"id": "rajkumar-2014",
"doi": "10.1016/S1470-2045(14)70442-5",
"pmid": "25439696",
"title": "International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma",
"source": "Lancet Oncol. 2014;15(12):e538-e548",
"authors": "Rajkumar SV, Dimopoulos MA, Palumbo A, Blade J, Merlini G, Mateos MV, Kumar S, Hillengass J, Kastritis E, Richardson P, Landgren O, Paiva B, Dispenzieri A, Weiss B, LeLeu X, Zweegman S, Lonial S, Rosinol L, Zamagni E, Jagannath S, Sezer O, Kristinsson SY, Caers J, Usmani SZ, Lahuerta JJ, Johnsen HE, Beksac M, Cavo M, Goldschmidt H, Terpos E, Kyle RA, Anderson KC, Durie BGM, San Miguel JF"
},
"criteria": [
{
"met": true,
"factor": "clonal_bmpc_ge_10_or_plasmacytoma"
},
{
"met": true,
"factor": "hypercalcemia"
},
{
"met": false,
"factor": "renal_insufficiency"
},
{
"met": false,
"factor": "anemia"
},
{
"met": false,
"factor": "osteolytic_lesion"
},
{
"met": false,
"factor": "bmpc_ge_60"
},
{
"met": false,
"factor": "flc_ratio_ge_100"
},
{
"met": false,
"factor": "mri_gt_1_focal"
},
{
"met": true,
"factor": "any_mde"
}
],
"bmpc_ge_60": 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.",
"hypercalcemia": true,
"mri_gt_1_focal": false,
"flc_ratio_ge_100": false,
"osteolytic_lesion": false,
"formula_expression": "myeloma iff clonal_bmpc_ge_10_or_plasmacytoma and ≥1 myeloma-defining event (hypercalcemia, renal_insufficiency, anemia, osteolytic_lesion, bmpc_ge_60, flc_ratio_ge_100, or mri_gt_1_focal) (Rajkumar 2014 IMWG definition of multiple myeloma requiring therapy). Not a diagnosis. Not smouldering MM, MGUS, POEMS, or amyloid. Not Greipp ISS. Not R-ISS",
"renal_insufficiency": false,
"clonal_bmpc_ge_10_or_plasmacytoma": true
},
{
"anemia": false,
"any_mde": true,
"formula": "imwg_myeloma",
"myeloma": true,
"citation": {
"id": "rajkumar-2014",
"doi": "10.1016/S1470-2045(14)70442-5",
"pmid": "25439696",
"title": "International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma",
"source": "Lancet Oncol. 2014;15(12):e538-e548",
"authors": "Rajkumar SV, Dimopoulos MA, Palumbo A, Blade J, Merlini G, Mateos MV, Kumar S, Hillengass J, Kastritis E, Richardson P, Landgren O, Paiva B, Dispenzieri A, Weiss B, LeLeu X, Zweegman S, Lonial S, Rosinol L, Zamagni E, Jagannath S, Sezer O, Kristinsson SY, Caers J, Usmani SZ, Lahuerta JJ, Johnsen HE, Beksac M, Cavo M, Goldschmidt H, Terpos E, Kyle RA, Anderson KC, Durie BGM, San Miguel JF"
},
"criteria": [
{
"met": true,
"factor": "clonal_bmpc_ge_10_or_plasmacytoma"
},
{
"met": true,
"factor": "hypercalcemia"
},
{
"met": false,
"factor": "renal_insufficiency"
},
{
"met": false,
"factor": "anemia"
},
{
"met": false,
"factor": "osteolytic_lesion"
},
{
"met": false,
"factor": "bmpc_ge_60"
},
{
"met": false,
"factor": "flc_ratio_ge_100"
},
{
"met": false,
"factor": "mri_gt_1_focal"
},
{
"met": true,
"factor": "any_mde"
}
],
"bmpc_ge_60": 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.",
"hypercalcemia": true,
"mri_gt_1_focal": false,
"flc_ratio_ge_100": false,
"osteolytic_lesion": false,
"formula_expression": "myeloma iff clonal_bmpc_ge_10_or_plasmacytoma and ≥1 myeloma-defining event (hypercalcemia, renal_insufficiency, anemia, osteolytic_lesion, bmpc_ge_60, flc_ratio_ge_100, or mri_gt_1_focal) (Rajkumar 2014 IMWG definition of multiple myeloma requiring therapy). Not a diagnosis. Not smouldering MM, MGUS, POEMS, or amyloid. Not Greipp ISS. Not R-ISS",
"renal_insufficiency": false,
"clonal_bmpc_ge_10_or_plasmacytoma": true
}
]
}
},
"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": [
"clonal_bmpc_ge_10_or_plasmacytoma",
"hypercalcemia",
"renal_insufficiency",
"anemia",
"osteolytic_lesion",
"bmpc_ge_60",
"flc_ratio_ge_100",
"mri_gt_1_focal"
],
"properties": {
"anemia": {
"type": "boolean",
"description": "Anemia as assigned by the caller (Rajkumar 2014 CRAB): hemoglobin value >20 g/L below the lower limit of normal or hemoglobin <100 g/L. true or false. magent does not assay hemoglobin."
},
"bmpc_ge_60": {
"type": "boolean",
"description": "Clonal bone marrow plasma cells ≥60%, as assigned by the caller (Rajkumar 2014 SLiM). true or false. magent does not read a marrow."
},
"hypercalcemia": {
"type": "boolean",
"description": "Hypercalcemia as assigned by the caller (Rajkumar 2014 CRAB): serum calcium >0.25 mmol/L (>1 mg/dL) above the upper limit of normal or >2.75 mmol/L (>11 mg/dL). true or false. magent does not assay calcium."
},
"mri_gt_1_focal": {
"type": "boolean",
"description": ">1 focal lesion on MRI, each ≥5 mm, as assigned by the caller (Rajkumar 2014 SLiM). true or false. magent does not read MRI."
},
"flc_ratio_ge_100": {
"type": "boolean",
"description": "Involved:uninvolved serum free light-chain ratio ≥100 and involved free light chain ≥100 mg/L, as assigned by the caller as this one flag (Rajkumar 2014 SLiM). true or false. magent does not assay free light chains."
},
"osteolytic_lesion": {
"type": "boolean",
"description": "One or more osteolytic lesions on skeletal radiography, CT, or PET-CT, as assigned by the caller (Rajkumar 2014 CRAB). If marrow clonal plasma cells are <10%, more than one bone lesion is required to distinguish solitary plasmacytoma; that is the caller’s assignment of this flag. true or false. magent does not read imaging."
},
"renal_insufficiency": {
"type": "boolean",
"description": "Renal insufficiency as assigned by the caller (Rajkumar 2014 CRAB): creatinine clearance <40 mL/min or serum creatinine >177 µmol/L (>2 mg/dL). true or false. magent does not assay creatinine."
},
"clonal_bmpc_ge_10_or_plasmacytoma": {
"type": "boolean",
"description": "Clonal bone marrow plasma cells ≥10% or biopsy-proven bony or extramedullary plasmacytoma, as assigned by the caller (Rajkumar 2014 IMWG entry for myeloma requiring therapy). true or false. When false, myeloma is false even if a myeloma-defining event is true. magent does not read a marrow or biopsy."
}
}
},
"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 13:42Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 15:15Z
- 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. 10 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/imwg_myeloma, 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.