magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
MediaLiveeip155:8453Exactvia cdp
UissRccKidneyPrognosisCalculator
Calls · 30d
2→ 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 13:00Z
—
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/uiss",
"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/uiss",
"tags": [
"uiss",
"rcc",
"kidney",
"prognosis",
"calculator"
],
"mimeType": "application/json",
"description": "Zisman 2002 localized N0M0 UISS for surgically resected unilateral RCC. Caller-assigned 1997 pathological T (t1-t4), Fuhrman 1-4, ECOG 0-4, and n0_m0 true. Returns low_risk (T1, Fuhrman 1-2, ECOG 0), high_risk (T3 with Fuhrman 2-4 and ECOG ≥1, or any T4), or intermediate_risk (every other N0M0 combination). Not 2001 I-V. Not metastatic UISS. Not SSIGN. magent does not assign TNM or read slides. Not a diagnosis. Not a medical device.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ecog": 0,
"n0_m0": true,
"t_stage": "t1",
"fuhrman_grade": 1
}
},
"output": {
"type": "json",
"example": {
"ecog": 0,
"n0_m0": true,
"formula": "uiss",
"t_stage": "t1",
"citation": {
"id": "zisman-2002",
"doi": "10.1200/JCO.2002.05.111",
"pmid": "12454113",
"title": "Risk group assessment and clinical outcome algorithm to predict the natural history of patients with surgically resected renal cell carcinoma",
"source": "J Clin Oncol. 2002;20(23):4559-4566",
"authors": "Zisman A, Pantuck AJ, Wieder J, Chao DH, Dorey F, Said JW, deKernion JB, Figlin RA, Belldegrun AS"
},
"components": [
{
"met": true,
"value": "t1",
"factor": "t_stage"
},
{
"met": true,
"factor": "n0_m0"
},
{
"met": true,
"value": 1,
"factor": "fuhrman_grade"
},
{
"met": true,
"value": 0,
"factor": "ecog"
},
{
"met": true,
"factor": "low_risk"
},
{
"met": false,
"factor": "intermediate_risk"
},
{
"met": false,
"factor": "high_risk"
}
],
"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.",
"uiss_group": "low_risk",
"fuhrman_grade": 1,
"formula_expression": "UISS localized N0M0 (Zisman 2002): low_risk if t_stage t1 AND fuhrman_grade in {1, 2} AND ecog 0; high_risk if (t_stage t3 AND fuhrman_grade in {2, 3, 4} AND ecog >= 1) OR t_stage t4; else intermediate_risk. Requires surgically resected unilateral RCC with 1997 pathological T and explicit N0M0. Not 2001 five-group I-V. Not metastatic UISS. Not SSIGN."
}
},
"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": [
"t_stage",
"n0_m0",
"fuhrman_grade",
"ecog"
],
"properties": {
"ecog": {
"type": "integer",
"description": "Oken 1982 ECOG performance status 0-4 as assigned by the caller. Grade 5 (dead) is not scored. magent does not observe the patient."
},
"n0_m0": {
"type": "boolean",
"description": "Must be true: surgically resected unilateral RCC that is node-negative and metastasis-negative (Zisman 2002 localized N0M0 UISS). N-positive or M-positive disease is out of scope. Not metastatic UISS."
},
"t_stage": {
"enum": [
"t1",
"t2",
"t3",
"t4"
],
"type": "string",
"description": "1997 pathological T as assigned by the caller (Zisman 2002 localized UISS). t1, t2, t3, or t4. Caller maps T1a/T1b to t1. magent does not assign TNM or read slides."
},
"fuhrman_grade": {
"type": "integer",
"description": "Fuhrman 1982 nuclear grade 1-4 as assigned by the caller (same parsing as Fuhrman). Integer 1-4 only; reject 0, 5, 1.5, and roman I. magent does not read slides."
}
}
}
},
"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/uiss",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"ecog": 0,
"n0_m0": true,
"t_stage": "t1",
"fuhrman_grade": 1
},
{
"ecog": 0,
"n0_m0": true,
"t_stage": "t1",
"fuhrman_grade": 1
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/uiss",
"count": 2,
"items": [
{
"ecog": 0,
"n0_m0": true,
"formula": "uiss",
"t_stage": "t1",
"citation": {
"id": "zisman-2002",
"doi": "10.1200/JCO.2002.05.111",
"pmid": "12454113",
"title": "Risk group assessment and clinical outcome algorithm to predict the natural history of patients with surgically resected renal cell carcinoma",
"source": "J Clin Oncol. 2002;20(23):4559-4566",
"authors": "Zisman A, Pantuck AJ, Wieder J, Chao DH, Dorey F, Said JW, deKernion JB, Figlin RA, Belldegrun AS"
},
"components": [
{
"met": true,
"value": "t1",
"factor": "t_stage"
},
{
"met": true,
"factor": "n0_m0"
},
{
"met": true,
"value": 1,
"factor": "fuhrman_grade"
},
{
"met": true,
"value": 0,
"factor": "ecog"
},
{
"met": true,
"factor": "low_risk"
},
{
"met": false,
"factor": "intermediate_risk"
},
{
"met": false,
"factor": "high_risk"
}
],
"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.",
"uiss_group": "low_risk",
"fuhrman_grade": 1,
"formula_expression": "UISS localized N0M0 (Zisman 2002): low_risk if t_stage t1 AND fuhrman_grade in {1, 2} AND ecog 0; high_risk if (t_stage t3 AND fuhrman_grade in {2, 3, 4} AND ecog >= 1) OR t_stage t4; else intermediate_risk. Requires surgically resected unilateral RCC with 1997 pathological T and explicit N0M0. Not 2001 five-group I-V. Not metastatic UISS. Not SSIGN."
},
{
"ecog": 0,
"n0_m0": true,
"formula": "uiss",
"t_stage": "t1",
"citation": {
"id": "zisman-2002",
"doi": "10.1200/JCO.2002.05.111",
"pmid": "12454113",
"title": "Risk group assessment and clinical outcome algorithm to predict the natural history of patients with surgically resected renal cell carcinoma",
"source": "J Clin Oncol. 2002;20(23):4559-4566",
"authors": "Zisman A, Pantuck AJ, Wieder J, Chao DH, Dorey F, Said JW, deKernion JB, Figlin RA, Belldegrun AS"
},
"components": [
{
"met": true,
"value": "t1",
"factor": "t_stage"
},
{
"met": true,
"factor": "n0_m0"
},
{
"met": true,
"value": 1,
"factor": "fuhrman_grade"
},
{
"met": true,
"value": 0,
"factor": "ecog"
},
{
"met": true,
"factor": "low_risk"
},
{
"met": false,
"factor": "intermediate_risk"
},
{
"met": false,
"factor": "high_risk"
}
],
"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.",
"uiss_group": "low_risk",
"fuhrman_grade": 1,
"formula_expression": "UISS localized N0M0 (Zisman 2002): low_risk if t_stage t1 AND fuhrman_grade in {1, 2} AND ecog 0; high_risk if (t_stage t3 AND fuhrman_grade in {2, 3, 4} AND ecog >= 1) OR t_stage t4; else intermediate_risk. Requires surgically resected unilateral RCC with 1997 pathological T and explicit N0M0. Not 2001 five-group I-V. Not metastatic UISS. Not SSIGN."
}
]
}
},
"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": [
"t_stage",
"n0_m0",
"fuhrman_grade",
"ecog"
],
"properties": {
"ecog": {
"type": "integer",
"description": "Oken 1982 ECOG performance status 0-4 as assigned by the caller. Grade 5 (dead) is not scored. magent does not observe the patient."
},
"n0_m0": {
"type": "boolean",
"description": "Must be true: surgically resected unilateral RCC that is node-negative and metastasis-negative (Zisman 2002 localized N0M0 UISS). N-positive or M-positive disease is out of scope. Not metastatic UISS."
},
"t_stage": {
"enum": [
"t1",
"t2",
"t3",
"t4"
],
"type": "string",
"description": "1997 pathological T as assigned by the caller (Zisman 2002 localized UISS). t1, t2, t3, or t4. Caller maps T1a/T1b to t1. magent does not assign TNM or read slides."
},
"fuhrman_grade": {
"type": "integer",
"description": "Fuhrman 1982 nuclear grade 1-4 as assigned by the caller (same parsing as Fuhrman). Integer 1-4 only; reject 0, 5, 1.5, and roman I. magent does not read slides."
}
}
},
"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 13:00Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 09:15Z
- 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/uiss, 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.