magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Mediaofflineeip155:8453Exactvia cdp
Flipi24FollicularLymphomaHematologyPrognosis
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 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 2026-09-04 07:02Z
—
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/flipi24",
"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/flipi24",
"tags": [
"flipi24",
"follicular",
"lymphoma",
"hematology",
"prognosis"
],
"mimeType": "application/json",
"description": "Maurer 2025 FLIPI24: 24-month event probability in newly diagnosed follicular lymphoma from age (nonlinear, inflection at 75), hemoglobin, WBC, LDH/ULN, and beta-2 microglobulin. Table S5 Cox algorithm assuming R-CHOP or B-R-like immunochemotherapy and 50% anti-CD20 maintenance. Low/intermediate/high at 0.10 and 0.15. Not Solal-Céligny FLIPI 2004. Not a diagnosis or treatment order. magent does not assay labs.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"age": 61,
"b2m_mg_l": 2,
"wbc_10e9_l": 7,
"ldh_uln_ratio": 1,
"hemoglobin_g_dl": 13
}
},
"output": {
"type": "json",
"example": {
"age": 61,
"formula": "flipi24",
"b2m_mg_l": 2,
"citation": {
"id": "maurer-2025-flipi24",
"doi": "10.1200/jco-25-00892",
"pmid": "41329901",
"title": "FLIPI24: A Modern Prognostic Model and Clinical Trial Enrichment Tool for Newly Diagnosed Follicular Lymphoma",
"source": "J Clin Oncol. 2026;44(2):117-128",
"authors": "Maurer MJ, et al."
},
"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.",
"risk_group": "intermediate",
"wbc_10e9_l": 7,
"ldh_uln_ratio": 1,
"hemoglobin_g_dl": 13,
"linear_predictor": 0.0525,
"formula_expression": "efs24_event_probability = 1 - 0.89^exp(lp); lp = 0.01*age60 + 0.038*age_over_75 + 0.364*ldh_uln + 0.159*b2m_mg_l - 0.081*hemoglobin_g_dl + 0.075*wbc_10e9_l - 0.7115; age60 = clamp(age, 60, 90); age_over_75 = min(15, max(0, clamp(age, 0, 90)-75)); ldh_uln clamp 0.5-5; b2m clamp 1-10 mg/L; hemoglobin clamp 8-17 g/dL; wbc clamp 4-11 10^9/L; Maurer 2025 Table S5; S0(24)=0.89; 50% anti-CD20 maintenance is in the 0.7115 centering; risk low if p<=0.10, intermediate if p<=0.15, else high; assumes R-CHOP or B-R-like immunochemotherapy",
"efs24_event_probability": 0.1156
}
},
"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",
"hemoglobin_g_dl",
"wbc_10e9_l",
"ldh_uln_ratio",
"b2m_mg_l"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (integer 18-120). Maurer 2025 Table S5: no additional age effect 18-60; HR 1.01 per year 60-75 (beta 0.01); HR 1.05 per year 75-90 (extra beta 0.038). Age is clamped to 90 for the linear predictor. magent does not assign age."
},
"b2m_mg_l": {
"type": "number",
"description": "Beta-2 microglobulin in mg/L (0.1-40). Table S5 linear 1-10 mg/L, HR 1.17 per unit (beta 0.159); values outside 1-10 are clamped. magent does not assay B2M."
},
"wbc_10e9_l": {
"type": "number",
"description": "White blood cell count in 10^9/L (0.1-80), equal to k/µL. Table S5 linear 4-11, HR 1.08 per unit (beta 0.075); values outside 4-11 are clamped. magent does not assay WBC."
},
"ldh_uln_ratio": {
"type": "number",
"description": "Caller-assigned serum LDH divided by the local upper limit of normal (0.1-20). Table S5 linear 0.5-5, HR 1.44 per unit (beta 0.364); values outside 0.5-5 are clamped. magent does not measure LDH or set the ULN."
},
"hemoglobin_g_dl": {
"type": "number",
"description": "Hemoglobin in g/dL (1-25). Table S5 linear 8-17 g/dL, HR 0.92 per unit (beta -0.081); values outside 8-17 are clamped. magent does not assay hemoglobin."
}
}
}
},
"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/flipi24",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"age": 61,
"b2m_mg_l": 2,
"wbc_10e9_l": 7,
"ldh_uln_ratio": 1,
"hemoglobin_g_dl": 13
},
{
"age": 61,
"b2m_mg_l": 2,
"wbc_10e9_l": 7,
"ldh_uln_ratio": 1,
"hemoglobin_g_dl": 13
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/flipi24",
"count": 2,
"items": [
{
"age": 61,
"formula": "flipi24",
"b2m_mg_l": 2,
"citation": {
"id": "maurer-2025-flipi24",
"doi": "10.1200/jco-25-00892",
"pmid": "41329901",
"title": "FLIPI24: A Modern Prognostic Model and Clinical Trial Enrichment Tool for Newly Diagnosed Follicular Lymphoma",
"source": "J Clin Oncol. 2026;44(2):117-128",
"authors": "Maurer MJ, et al."
},
"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.",
"risk_group": "intermediate",
"wbc_10e9_l": 7,
"ldh_uln_ratio": 1,
"hemoglobin_g_dl": 13,
"linear_predictor": 0.0525,
"formula_expression": "efs24_event_probability = 1 - 0.89^exp(lp); lp = 0.01*age60 + 0.038*age_over_75 + 0.364*ldh_uln + 0.159*b2m_mg_l - 0.081*hemoglobin_g_dl + 0.075*wbc_10e9_l - 0.7115; age60 = clamp(age, 60, 90); age_over_75 = min(15, max(0, clamp(age, 0, 90)-75)); ldh_uln clamp 0.5-5; b2m clamp 1-10 mg/L; hemoglobin clamp 8-17 g/dL; wbc clamp 4-11 10^9/L; Maurer 2025 Table S5; S0(24)=0.89; 50% anti-CD20 maintenance is in the 0.7115 centering; risk low if p<=0.10, intermediate if p<=0.15, else high; assumes R-CHOP or B-R-like immunochemotherapy",
"efs24_event_probability": 0.1156
},
{
"age": 61,
"formula": "flipi24",
"b2m_mg_l": 2,
"citation": {
"id": "maurer-2025-flipi24",
"doi": "10.1200/jco-25-00892",
"pmid": "41329901",
"title": "FLIPI24: A Modern Prognostic Model and Clinical Trial Enrichment Tool for Newly Diagnosed Follicular Lymphoma",
"source": "J Clin Oncol. 2026;44(2):117-128",
"authors": "Maurer MJ, et al."
},
"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.",
"risk_group": "intermediate",
"wbc_10e9_l": 7,
"ldh_uln_ratio": 1,
"hemoglobin_g_dl": 13,
"linear_predictor": 0.0525,
"formula_expression": "efs24_event_probability = 1 - 0.89^exp(lp); lp = 0.01*age60 + 0.038*age_over_75 + 0.364*ldh_uln + 0.159*b2m_mg_l - 0.081*hemoglobin_g_dl + 0.075*wbc_10e9_l - 0.7115; age60 = clamp(age, 60, 90); age_over_75 = min(15, max(0, clamp(age, 0, 90)-75)); ldh_uln clamp 0.5-5; b2m clamp 1-10 mg/L; hemoglobin clamp 8-17 g/dL; wbc clamp 4-11 10^9/L; Maurer 2025 Table S5; S0(24)=0.89; 50% anti-CD20 maintenance is in the 0.7115 centering; risk low if p<=0.10, intermediate if p<=0.15, else high; assumes R-CHOP or B-R-like immunochemotherapy",
"efs24_event_probability": 0.1156
}
]
}
},
"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",
"hemoglobin_g_dl",
"wbc_10e9_l",
"ldh_uln_ratio",
"b2m_mg_l"
],
"properties": {
"age": {
"type": "integer",
"description": "Age in years (integer 18-120). Maurer 2025 Table S5: no additional age effect 18-60; HR 1.01 per year 60-75 (beta 0.01); HR 1.05 per year 75-90 (extra beta 0.038). Age is clamped to 90 for the linear predictor. magent does not assign age."
},
"b2m_mg_l": {
"type": "number",
"description": "Beta-2 microglobulin in mg/L (0.1-40). Table S5 linear 1-10 mg/L, HR 1.17 per unit (beta 0.159); values outside 1-10 are clamped. magent does not assay B2M."
},
"wbc_10e9_l": {
"type": "number",
"description": "White blood cell count in 10^9/L (0.1-80), equal to k/µL. Table S5 linear 4-11, HR 1.08 per unit (beta 0.075); values outside 4-11 are clamped. magent does not assay WBC."
},
"ldh_uln_ratio": {
"type": "number",
"description": "Caller-assigned serum LDH divided by the local upper limit of normal (0.1-20). Table S5 linear 0.5-5, HR 1.44 per unit (beta 0.364); values outside 0.5-5 are clamped. magent does not measure LDH or set the ULN."
},
"hemoglobin_g_dl": {
"type": "number",
"description": "Hemoglobin in g/dL (1-25). Table S5 linear 8-17 g/dL, HR 0.92 per unit (beta -0.081); values outside 8-17 are clamped. magent does not assay hemoglobin."
}
}
},
"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
- 2026-09-04 07:02Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 14:15Z
- 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. 5 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/flipi24, 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.