magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Inferenceofflineeip155:8453Exactvia cdp
Dad-ckdCkdHivKidneyCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 7 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 2026-09-02 08:46Z
—
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/dad_ckd",
"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/dad_ckd",
"tags": [
"dad-ckd",
"ckd",
"hiv",
"kidney",
"calculator"
],
"mimeType": "application/json",
"description": "Mocroft 2015 D:A:D full CKD risk score (Table 2 integer points only): IDU, hepatitis C, age, caller-assigned eGFR >60, sex, nadir CD4, hypertension, prior CVD, and diabetes. Bands low <0, medium 0–4, high ≥5. Not the short score, not the Poisson probability model, not NNTH, and not an ART start order. Race is not an input.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sex": "female",
"ivdu": false,
"diabetes": true,
"age_years": 38,
"prior_cvd": false,
"egfr_ml_min": 68,
"hepatitis_c": false,
"hypertension": false,
"nadir_cd4_cells_mm3": 250
}
},
"output": {
"type": "json",
"example": {
"sex": "female",
"ivdu": false,
"score": 12,
"formula": "dad_ckd",
"citation": {
"id": "mocroft-2015",
"doi": "10.1371/journal.pmed.1001809",
"pmid": "25826420",
"title": "Development and Validation of a Risk Score for Chronic Kidney Disease in HIV Infection Using Prospective Cohort Data from the D:A:D Study",
"source": "PLoS Med. 2015;12(3):e1001809",
"authors": "Mocroft A, Lundgren JD, Ross M, Law M, Reiss P, Kirk O, et al."
},
"diabetes": true,
"age_years": 38,
"max_score": 24,
"prior_cvd": false,
"risk_band": "high",
"components": [
{
"factor": "ivdu",
"points": 0,
"present": false
},
{
"factor": "hepatitis_c",
"points": 0,
"present": false
},
{
"value": 38,
"factor": "age_years",
"points": 4,
"present": true
},
{
"value": 68,
"factor": "egfr_ml_min",
"points": 6,
"present": true
},
{
"value": "female",
"factor": "sex",
"points": 1,
"present": true
},
{
"value": 250,
"factor": "nadir_cd4_cells_mm3",
"points": -1,
"present": true
},
{
"factor": "hypertension",
"points": 0,
"present": false
},
{
"factor": "prior_cvd",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 2,
"present": true
}
],
"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.",
"egfr_ml_min": 68,
"hepatitis_c": false,
"hypertension": false,
"formula_expression": "D:A:D full CKD = ivdu 2 + hepatitis_c 1 + age (≤35 0; >35 and ≤50 4; >50 and ≤60 7; >60 10) + egfr (>90 −6; >70 and ≤90 0; >60 and ≤70 6) + female 1 + nadir_cd4 (>200 −1; ≤200 0) + hypertension 1 + prior_cvd 1 + diabetes 2; Mocroft 2015 Table 2; max 24; bands low <0, medium 0–4, high ≥5",
"nadir_cd4_cells_mm3": 250
}
},
"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": [
"ivdu",
"hepatitis_c",
"age_years",
"egfr_ml_min",
"sex",
"nadir_cd4_cells_mm3",
"hypertension",
"prior_cvd",
"diabetes"
],
"properties": {
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex (Mocroft 2015 Table 2). female scores 1; male scores 0."
},
"ivdu": {
"type": "boolean",
"description": "Caller-assigned injecting drug use (Mocroft 2015 Table 2). true scores 2. magent does not diagnose injecting drug use."
},
"diabetes": {
"type": "boolean",
"description": "Caller-assigned diabetes (Mocroft 2015 Table 2). true scores 2. magent does not diagnose diabetes."
},
"age_years": {
"type": "integer",
"description": "Age in years (integer 16-120). Mocroft 2015 Table 2: ≤35 scores 0; >35 and ≤50 scores 4; >50 and ≤60 scores 7; >60 scores 10."
},
"prior_cvd": {
"type": "boolean",
"description": "Caller-assigned prior cardiovascular disease (Mocroft 2015 Table 2). true scores 1. magent does not diagnose CVD."
},
"egfr_ml_min": {
"type": "number",
"description": "Caller-assigned eGFR in mL/min (0.1-250, must be >60). Mocroft 2015 Table 2: >90 scores −6; >70 and ≤90 scores 0; >60 and ≤70 scores 6. eGFR ≤60 is outside the derivation population. magent does not compute eGFR."
},
"hepatitis_c": {
"type": "boolean",
"description": "Caller-assigned hepatitis C co-infection (Mocroft 2015 Table 2). true scores 1. magent does not diagnose hepatitis C."
},
"hypertension": {
"type": "boolean",
"description": "Caller-assigned hypertension (Mocroft 2015 Table 2). true scores 1. magent does not diagnose hypertension."
},
"nadir_cd4_cells_mm3": {
"type": "integer",
"description": "Nadir CD4 count in cells/mm³ (integer 0-3000). Mocroft 2015 Table 2: ≤200 scores 0; >200 scores −1. magent does not assay CD4."
}
}
}
},
"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/dad_ckd",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"sex": "female",
"ivdu": false,
"diabetes": true,
"age_years": 38,
"prior_cvd": false,
"egfr_ml_min": 68,
"hepatitis_c": false,
"hypertension": false,
"nadir_cd4_cells_mm3": 250
},
{
"sex": "female",
"ivdu": false,
"diabetes": true,
"age_years": 38,
"prior_cvd": false,
"egfr_ml_min": 68,
"hepatitis_c": false,
"hypertension": false,
"nadir_cd4_cells_mm3": 250
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/dad_ckd",
"count": 2,
"items": [
{
"sex": "female",
"ivdu": false,
"score": 12,
"formula": "dad_ckd",
"citation": {
"id": "mocroft-2015",
"doi": "10.1371/journal.pmed.1001809",
"pmid": "25826420",
"title": "Development and Validation of a Risk Score for Chronic Kidney Disease in HIV Infection Using Prospective Cohort Data from the D:A:D Study",
"source": "PLoS Med. 2015;12(3):e1001809",
"authors": "Mocroft A, Lundgren JD, Ross M, Law M, Reiss P, Kirk O, et al."
},
"diabetes": true,
"age_years": 38,
"max_score": 24,
"prior_cvd": false,
"risk_band": "high",
"components": [
{
"factor": "ivdu",
"points": 0,
"present": false
},
{
"factor": "hepatitis_c",
"points": 0,
"present": false
},
{
"value": 38,
"factor": "age_years",
"points": 4,
"present": true
},
{
"value": 68,
"factor": "egfr_ml_min",
"points": 6,
"present": true
},
{
"value": "female",
"factor": "sex",
"points": 1,
"present": true
},
{
"value": 250,
"factor": "nadir_cd4_cells_mm3",
"points": -1,
"present": true
},
{
"factor": "hypertension",
"points": 0,
"present": false
},
{
"factor": "prior_cvd",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 2,
"present": true
}
],
"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.",
"egfr_ml_min": 68,
"hepatitis_c": false,
"hypertension": false,
"formula_expression": "D:A:D full CKD = ivdu 2 + hepatitis_c 1 + age (≤35 0; >35 and ≤50 4; >50 and ≤60 7; >60 10) + egfr (>90 −6; >70 and ≤90 0; >60 and ≤70 6) + female 1 + nadir_cd4 (>200 −1; ≤200 0) + hypertension 1 + prior_cvd 1 + diabetes 2; Mocroft 2015 Table 2; max 24; bands low <0, medium 0–4, high ≥5",
"nadir_cd4_cells_mm3": 250
},
{
"sex": "female",
"ivdu": false,
"score": 12,
"formula": "dad_ckd",
"citation": {
"id": "mocroft-2015",
"doi": "10.1371/journal.pmed.1001809",
"pmid": "25826420",
"title": "Development and Validation of a Risk Score for Chronic Kidney Disease in HIV Infection Using Prospective Cohort Data from the D:A:D Study",
"source": "PLoS Med. 2015;12(3):e1001809",
"authors": "Mocroft A, Lundgren JD, Ross M, Law M, Reiss P, Kirk O, et al."
},
"diabetes": true,
"age_years": 38,
"max_score": 24,
"prior_cvd": false,
"risk_band": "high",
"components": [
{
"factor": "ivdu",
"points": 0,
"present": false
},
{
"factor": "hepatitis_c",
"points": 0,
"present": false
},
{
"value": 38,
"factor": "age_years",
"points": 4,
"present": true
},
{
"value": 68,
"factor": "egfr_ml_min",
"points": 6,
"present": true
},
{
"value": "female",
"factor": "sex",
"points": 1,
"present": true
},
{
"value": 250,
"factor": "nadir_cd4_cells_mm3",
"points": -1,
"present": true
},
{
"factor": "hypertension",
"points": 0,
"present": false
},
{
"factor": "prior_cvd",
"points": 0,
"present": false
},
{
"factor": "diabetes",
"points": 2,
"present": true
}
],
"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.",
"egfr_ml_min": 68,
"hepatitis_c": false,
"hypertension": false,
"formula_expression": "D:A:D full CKD = ivdu 2 + hepatitis_c 1 + age (≤35 0; >35 and ≤50 4; >50 and ≤60 7; >60 10) + egfr (>90 −6; >70 and ≤90 0; >60 and ≤70 6) + female 1 + nadir_cd4 (>200 −1; ≤200 0) + hypertension 1 + prior_cvd 1 + diabetes 2; Mocroft 2015 Table 2; max 24; bands low <0, medium 0–4, high ≥5",
"nadir_cd4_cells_mm3": 250
}
]
}
},
"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": [
"ivdu",
"hepatitis_c",
"age_years",
"egfr_ml_min",
"sex",
"nadir_cd4_cells_mm3",
"hypertension",
"prior_cvd",
"diabetes"
],
"properties": {
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "Sex (Mocroft 2015 Table 2). female scores 1; male scores 0."
},
"ivdu": {
"type": "boolean",
"description": "Caller-assigned injecting drug use (Mocroft 2015 Table 2). true scores 2. magent does not diagnose injecting drug use."
},
"diabetes": {
"type": "boolean",
"description": "Caller-assigned diabetes (Mocroft 2015 Table 2). true scores 2. magent does not diagnose diabetes."
},
"age_years": {
"type": "integer",
"description": "Age in years (integer 16-120). Mocroft 2015 Table 2: ≤35 scores 0; >35 and ≤50 scores 4; >50 and ≤60 scores 7; >60 scores 10."
},
"prior_cvd": {
"type": "boolean",
"description": "Caller-assigned prior cardiovascular disease (Mocroft 2015 Table 2). true scores 1. magent does not diagnose CVD."
},
"egfr_ml_min": {
"type": "number",
"description": "Caller-assigned eGFR in mL/min (0.1-250, must be >60). Mocroft 2015 Table 2: >90 scores −6; >70 and ≤90 scores 0; >60 and ≤70 scores 6. eGFR ≤60 is outside the derivation population. magent does not compute eGFR."
},
"hepatitis_c": {
"type": "boolean",
"description": "Caller-assigned hepatitis C co-infection (Mocroft 2015 Table 2). true scores 1. magent does not diagnose hepatitis C."
},
"hypertension": {
"type": "boolean",
"description": "Caller-assigned hypertension (Mocroft 2015 Table 2). true scores 1. magent does not diagnose hypertension."
},
"nadir_cd4_cells_mm3": {
"type": "integer",
"description": "Nadir CD4 count in cells/mm³ (integer 0-3000). Mocroft 2015 Table 2: ≤200 scores 0; >200 scores −1. magent does not assay CD4."
}
}
},
"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
- 2026-09-02 08:46Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 00:15Z
- 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. 7 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/dad_ckd, 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.