magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Otherofflineeip155:8453Exactvia cdp
RifleAkiKidneyCreatinineCalculator
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 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 12:59Z
—
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/rifle",
"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/rifle",
"tags": [
"rifle",
"aki",
"kidney",
"creatinine",
"calculator"
],
"mimeType": "application/json",
"description": "RIFLE 2004 (Bellomo Fig. 1) class from baseline and current creatinine in mg/dL and a caller-assigned urine-output category. Class is the worse of the two limbs; persistent ARF >4 weeks is Loss and >3 months is ESRD. magent does not assay creatinine, measure urine, or estimate baseline with MDRD. Not a medical device, not a diagnosis, not AKIN 2007, and not KDIGO 2012.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"urine_output": "none",
"esrd_gt_3_months": false,
"current_creatinine_mg_dl": 1,
"baseline_creatinine_mg_dl": 1,
"persistent_arf_gt_4_weeks": false
}
},
"output": {
"type": "json",
"example": {
"formula": "rifle",
"citation": {
"id": "bellomo-2004",
"doi": "10.1186/cc2872",
"pmid": "15312219",
"title": "Acute renal failure - definition, outcome measures, animal models, fluid therapy and information technology needs: the Second International Consensus Conference of the Acute Dialysis Quality Initiative (ADQI) Group",
"source": "Crit Care. 2004;8(4):R204-R212",
"authors": "Bellomo R, Ronco C, Kellum JA, Mehta RL, Palevsky P, and the ADQI workgroup"
},
"uo_class": "none",
"components": [
{
"met": false,
"value": "none",
"factor": "creat_class"
},
{
"met": false,
"value": "none",
"factor": "uo_class"
}
],
"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.",
"creat_class": "none",
"rifle_class": "none",
"urine_output": "none",
"esrd_gt_3_months": false,
"formula_expression": "RIFLE class = esrd if ESRD >3 months, else loss if persistent ARF >4 weeks, else worse of creatinine vs urine (none < risk < injury < failure). Creatinine vs baseline (unrounded mg/dL): Failure if ratio ≥3.0 or (current ≥4.0 mg/dL and increase ≥0.5 mg/dL); Injury if ratio ≥2.0; Risk if ratio ≥1.5. GFR % decrease (Risk >25%, Injury >50%, Failure >75%) is equivalent to those creatinine multiples. Urine (caller-assigned): none → none; oliguria_gt_6h → Risk; oliguria_gt_12h → Injury; oliguria_24h_or_anuria_12h → Failure (Bellomo 2004 Fig. 1)",
"current_creatinine_mg_dl": 1,
"baseline_creatinine_mg_dl": 1,
"persistent_arf_gt_4_weeks": false
}
},
"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": [
"baseline_creatinine_mg_dl",
"current_creatinine_mg_dl",
"urine_output",
"persistent_arf_gt_4_weeks",
"esrd_gt_3_months"
],
"properties": {
"urine_output": {
"enum": [
"none",
"oliguria_gt_6h",
"oliguria_gt_12h",
"oliguria_24h_or_anuria_12h"
],
"type": "string",
"description": "Caller-assigned RIFLE urine-output category (Bellomo 2004 Fig. 1): none (no oliguria or anuria criterion); oliguria_gt_6h (<0.5 mL/kg/h for 6 hours); oliguria_gt_12h (<0.5 mL/kg/h for 12 hours); oliguria_24h_or_anuria_12h (<0.3 mL/kg/h for 24 hours or anuria for 12 hours). Case-insensitive. magent does not collect weight or measure urine."
},
"esrd_gt_3_months": {
"type": "boolean",
"description": "End-stage kidney disease for more than 3 months as assigned by the caller (Bellomo 2004 ESRD). true maps to rifle_class esrd irrespective of creatinine, urine, or Loss. true or false."
},
"current_creatinine_mg_dl": {
"type": "number",
"description": "Current serum creatinine in mg/dL (0.1-20). Classification uses the unrounded value. µmol/L is not accepted on this tool. magent does not assay creatinine."
},
"baseline_creatinine_mg_dl": {
"type": "number",
"description": "Baseline serum creatinine in mg/dL (0.1-20). Classification uses the unrounded value. µmol/L is not accepted on this tool. magent does not assay creatinine."
},
"persistent_arf_gt_4_weeks": {
"type": "boolean",
"description": "Persistent complete loss of kidney function for more than 4 weeks as assigned by the caller (Bellomo 2004 Loss). true maps to rifle_class loss unless esrd_gt_3_months is true. true or false."
}
}
}
},
"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/rifle",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"urine_output": "none",
"esrd_gt_3_months": false,
"current_creatinine_mg_dl": 1,
"baseline_creatinine_mg_dl": 1,
"persistent_arf_gt_4_weeks": false
},
{
"urine_output": "none",
"esrd_gt_3_months": false,
"current_creatinine_mg_dl": 1,
"baseline_creatinine_mg_dl": 1,
"persistent_arf_gt_4_weeks": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/rifle",
"count": 2,
"items": [
{
"formula": "rifle",
"citation": {
"id": "bellomo-2004",
"doi": "10.1186/cc2872",
"pmid": "15312219",
"title": "Acute renal failure - definition, outcome measures, animal models, fluid therapy and information technology needs: the Second International Consensus Conference of the Acute Dialysis Quality Initiative (ADQI) Group",
"source": "Crit Care. 2004;8(4):R204-R212",
"authors": "Bellomo R, Ronco C, Kellum JA, Mehta RL, Palevsky P, and the ADQI workgroup"
},
"uo_class": "none",
"components": [
{
"met": false,
"value": "none",
"factor": "creat_class"
},
{
"met": false,
"value": "none",
"factor": "uo_class"
}
],
"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.",
"creat_class": "none",
"rifle_class": "none",
"urine_output": "none",
"esrd_gt_3_months": false,
"formula_expression": "RIFLE class = esrd if ESRD >3 months, else loss if persistent ARF >4 weeks, else worse of creatinine vs urine (none < risk < injury < failure). Creatinine vs baseline (unrounded mg/dL): Failure if ratio ≥3.0 or (current ≥4.0 mg/dL and increase ≥0.5 mg/dL); Injury if ratio ≥2.0; Risk if ratio ≥1.5. GFR % decrease (Risk >25%, Injury >50%, Failure >75%) is equivalent to those creatinine multiples. Urine (caller-assigned): none → none; oliguria_gt_6h → Risk; oliguria_gt_12h → Injury; oliguria_24h_or_anuria_12h → Failure (Bellomo 2004 Fig. 1)",
"current_creatinine_mg_dl": 1,
"baseline_creatinine_mg_dl": 1,
"persistent_arf_gt_4_weeks": false
},
{
"formula": "rifle",
"citation": {
"id": "bellomo-2004",
"doi": "10.1186/cc2872",
"pmid": "15312219",
"title": "Acute renal failure - definition, outcome measures, animal models, fluid therapy and information technology needs: the Second International Consensus Conference of the Acute Dialysis Quality Initiative (ADQI) Group",
"source": "Crit Care. 2004;8(4):R204-R212",
"authors": "Bellomo R, Ronco C, Kellum JA, Mehta RL, Palevsky P, and the ADQI workgroup"
},
"uo_class": "none",
"components": [
{
"met": false,
"value": "none",
"factor": "creat_class"
},
{
"met": false,
"value": "none",
"factor": "uo_class"
}
],
"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.",
"creat_class": "none",
"rifle_class": "none",
"urine_output": "none",
"esrd_gt_3_months": false,
"formula_expression": "RIFLE class = esrd if ESRD >3 months, else loss if persistent ARF >4 weeks, else worse of creatinine vs urine (none < risk < injury < failure). Creatinine vs baseline (unrounded mg/dL): Failure if ratio ≥3.0 or (current ≥4.0 mg/dL and increase ≥0.5 mg/dL); Injury if ratio ≥2.0; Risk if ratio ≥1.5. GFR % decrease (Risk >25%, Injury >50%, Failure >75%) is equivalent to those creatinine multiples. Urine (caller-assigned): none → none; oliguria_gt_6h → Risk; oliguria_gt_12h → Injury; oliguria_24h_or_anuria_12h → Failure (Bellomo 2004 Fig. 1)",
"current_creatinine_mg_dl": 1,
"baseline_creatinine_mg_dl": 1,
"persistent_arf_gt_4_weeks": false
}
]
}
},
"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": [
"baseline_creatinine_mg_dl",
"current_creatinine_mg_dl",
"urine_output",
"persistent_arf_gt_4_weeks",
"esrd_gt_3_months"
],
"properties": {
"urine_output": {
"enum": [
"none",
"oliguria_gt_6h",
"oliguria_gt_12h",
"oliguria_24h_or_anuria_12h"
],
"type": "string",
"description": "Caller-assigned RIFLE urine-output category (Bellomo 2004 Fig. 1): none (no oliguria or anuria criterion); oliguria_gt_6h (<0.5 mL/kg/h for 6 hours); oliguria_gt_12h (<0.5 mL/kg/h for 12 hours); oliguria_24h_or_anuria_12h (<0.3 mL/kg/h for 24 hours or anuria for 12 hours). Case-insensitive. magent does not collect weight or measure urine."
},
"esrd_gt_3_months": {
"type": "boolean",
"description": "End-stage kidney disease for more than 3 months as assigned by the caller (Bellomo 2004 ESRD). true maps to rifle_class esrd irrespective of creatinine, urine, or Loss. true or false."
},
"current_creatinine_mg_dl": {
"type": "number",
"description": "Current serum creatinine in mg/dL (0.1-20). Classification uses the unrounded value. µmol/L is not accepted on this tool. magent does not assay creatinine."
},
"baseline_creatinine_mg_dl": {
"type": "number",
"description": "Baseline serum creatinine in mg/dL (0.1-20). Classification uses the unrounded value. µmol/L is not accepted on this tool. magent does not assay creatinine."
},
"persistent_arf_gt_4_weeks": {
"type": "boolean",
"description": "Persistent complete loss of kidney function for more than 4 weeks as assigned by the caller (Bellomo 2004 Loss). true maps to rifle_class loss unless esrd_gt_3_months is true. true or false."
}
}
},
"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 12:59Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 10:15Z
- 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. 14 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/rifle, 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.