magent
Haukoos 2012 Table 2 FULL Denver HIV score (not abbreviated). Age bands, sex, ethnicity, and five caller-assigned flags (sm vi rai idu pht). Range -14 to 81. Caller-assigned. Not a diagnosis.
Dataofflineeip155:8453Exactvia cdp
Hiv-screeningInfectionCalculator
Calls · 30d
2→ 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-03 20:09Z
—
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/dhrs",
"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/dhrs",
"tags": [
"hiv-screening",
"infection",
"calculator"
],
"mimeType": "application/json",
"description": "Haukoos 2012 Table 2 FULL Denver HIV score (not abbreviated). Age bands, sex, ethnicity, and five caller-assigned flags (sm vi rai idu pht). Range -14 to 81. Caller-assigned. Not a diagnosis.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sm": false,
"vi": false,
"age": 20,
"idu": false,
"pht": false,
"rai": false,
"sex": "female",
"ethnicity": "white"
}
},
"output": {
"type": "json",
"example": {
"sm": false,
"vi": false,
"idu": false,
"pht": false,
"rai": false,
"sex": "female",
"band": "very_low",
"score": 0,
"formula": "denver_hiv",
"citation": {
"id": "haukoos-2012-denver-hiv",
"doi": "10.1093/aje/kwr389",
"pmid": "22425121",
"title": "Derivation and Validation of the Denver Human Immunodeficiency Virus (HIV) Risk Score for Targeted HIV Screening",
"source": "Am J Epidemiol. 2012;175(8):838-846",
"authors": "Haukoos JS, Lyons MS, Lindsell CJ, Hopkins E, Bender B, Rothman RE, Hsieh YH, MacLaren LA, Thrun MW, Sasson C, Byyny RL"
},
"age_years": 20,
"ethnicity": "white",
"max_score": 81,
"min_score": -14,
"components": [
{
"value": 20,
"factor": "age",
"points": 0,
"present": false
},
{
"value": "female",
"factor": "sex",
"points": 0,
"present": false
},
{
"value": "white",
"factor": "ethnicity",
"points": 0,
"present": false
},
{
"factor": "sm",
"points": 0,
"present": false
},
{
"factor": "vi",
"points": 0,
"present": false
},
{
"factor": "rai",
"points": 0,
"present": false
},
{
"factor": "idu",
"points": 0,
"present": false
},
{
"factor": "pht",
"points": 0,
"present": 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.",
"formula_expression": "Denver HIV (Haukoos 2012 Table 2 FULL pruned) = age (<22 or >60 0; 22-25 or 55-60 4; 26-32 or 47-54 10; 33-46 12) + sex (female 0, male 21) + ethnicity (black 9, hispanic 3, white 0, other 0) + sex_with_male 22 + vaginal_intercourse -10 + receptive_anal_intercourse 8 + injection_drug_use 9 + past_hiv_testing -4; flags independent, not mutually exclusive; range -14 to 81; <20 very_low derivation 0.12%, 20-29 low 0.24%, 30-39 moderate 0.67%, 40-49 high 2.28%, >=50 very_high 5.66%",
"derivation_hiv_percent": 0.12
}
},
"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",
"sex",
"ethnicity",
"sm",
"vi",
"rai",
"idu",
"pht"
],
"properties": {
"sm": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item sm. Caller-assigned boolean. +22 if true. Magent docs map this to the paper's sex-with-a-male coefficient; magent does not take a sexual history."
},
"vi": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item vi. Caller-assigned boolean. -10 if true. Do not drop this item. Magent docs map this to the paper's vaginal-intercourse coefficient."
},
"age": {
"type": "integer",
"description": "Age in years (integer 18-120). Haukoos 2012 Table 2: <22 or >60 scores 0; 22-25 or 55-60 scores 4; 26-32 or 47-54 scores 10; 33-46 scores 12. Caller-assigned."
},
"idu": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item idu. Caller-assigned boolean. +9 if true. Magent docs map this to the paper's injection-drug-use coefficient."
},
"pht": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item pht. Caller-assigned boolean. -4 if true. Magent docs map this to the paper's past-HIV-testing coefficient."
},
"rai": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item rai. Caller-assigned boolean. +8 if true. Do not drop this item. Magent docs map this to the paper's receptive-anal-intercourse coefficient."
},
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "female or male as assigned by the caller (Haukoos 2012 Table 2 gender). female scores 0; male scores 21."
},
"ethnicity": {
"enum": [
"black",
"hispanic",
"white",
"other"
],
"type": "string",
"description": "Caller-assigned ethnicity as used in Haukoos 2012 Table 2 (not param race). black scores 9; hispanic scores 3; white scores 0; other scores 0 (paper: American Indian or Alaska Native, Native Hawaiian, or non-Hawaiian Pacific Islander). magent does not assign race or ethnicity."
}
}
}
},
"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
0.005USDC≈ $0.005 USD
on Base · batch-settlement 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/dhrs",
"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
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sm": false,
"vi": false,
"age": 20,
"idu": false,
"pht": false,
"rai": false,
"sex": "female",
"ethnicity": "white"
}
},
"output": {
"type": "json",
"example": {
"sm": false,
"vi": false,
"idu": false,
"pht": false,
"rai": false,
"sex": "female",
"band": "very_low",
"score": 0,
"formula": "denver_hiv",
"citation": {
"id": "haukoos-2012-denver-hiv",
"doi": "10.1093/aje/kwr389",
"pmid": "22425121",
"title": "Derivation and Validation of the Denver Human Immunodeficiency Virus (HIV) Risk Score for Targeted HIV Screening",
"source": "Am J Epidemiol. 2012;175(8):838-846",
"authors": "Haukoos JS, Lyons MS, Lindsell CJ, Hopkins E, Bender B, Rothman RE, Hsieh YH, MacLaren LA, Thrun MW, Sasson C, Byyny RL"
},
"age_years": 20,
"ethnicity": "white",
"max_score": 81,
"min_score": -14,
"components": [
{
"value": 20,
"factor": "age",
"points": 0,
"present": false
},
{
"value": "female",
"factor": "sex",
"points": 0,
"present": false
},
{
"value": "white",
"factor": "ethnicity",
"points": 0,
"present": false
},
{
"factor": "sm",
"points": 0,
"present": false
},
{
"factor": "vi",
"points": 0,
"present": false
},
{
"factor": "rai",
"points": 0,
"present": false
},
{
"factor": "idu",
"points": 0,
"present": false
},
{
"factor": "pht",
"points": 0,
"present": 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.",
"formula_expression": "Denver HIV (Haukoos 2012 Table 2 FULL pruned) = age (<22 or >60 0; 22-25 or 55-60 4; 26-32 or 47-54 10; 33-46 12) + sex (female 0, male 21) + ethnicity (black 9, hispanic 3, white 0, other 0) + sex_with_male 22 + vaginal_intercourse -10 + receptive_anal_intercourse 8 + injection_drug_use 9 + past_hiv_testing -4; flags independent, not mutually exclusive; range -14 to 81; <20 very_low derivation 0.12%, 20-29 low 0.24%, 30-39 moderate 0.67%, 40-49 high 2.28%, >=50 very_high 5.66%",
"derivation_hiv_percent": 0.12
}
},
"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",
"sex",
"ethnicity",
"sm",
"vi",
"rai",
"idu",
"pht"
],
"properties": {
"sm": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item sm. Caller-assigned boolean. +22 if true. Magent docs map this to the paper's sex-with-a-male coefficient; magent does not take a sexual history."
},
"vi": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item vi. Caller-assigned boolean. -10 if true. Do not drop this item. Magent docs map this to the paper's vaginal-intercourse coefficient."
},
"age": {
"type": "integer",
"description": "Age in years (integer 18-120). Haukoos 2012 Table 2: <22 or >60 scores 0; 22-25 or 55-60 scores 4; 26-32 or 47-54 scores 10; 33-46 scores 12. Caller-assigned."
},
"idu": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item idu. Caller-assigned boolean. +9 if true. Magent docs map this to the paper's injection-drug-use coefficient."
},
"pht": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item pht. Caller-assigned boolean. -4 if true. Magent docs map this to the paper's past-HIV-testing coefficient."
},
"rai": {
"type": "boolean",
"description": "Haukoos 2012 Table 2 item rai. Caller-assigned boolean. +8 if true. Do not drop this item. Magent docs map this to the paper's receptive-anal-intercourse coefficient."
},
"sex": {
"enum": [
"female",
"male"
],
"type": "string",
"description": "female or male as assigned by the caller (Haukoos 2012 Table 2 gender). female scores 0; male scores 21."
},
"ethnicity": {
"enum": [
"black",
"hispanic",
"white",
"other"
],
"type": "string",
"description": "Caller-assigned ethnicity as used in Haukoos 2012 Table 2 (not param race). black scores 9; hispanic scores 3; white scores 0; other scores 0 (paper: American Indian or Alaska Native, Native Hawaiian, or non-Hawaiian Pacific Islander). magent does not assign race or ethnicity."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-03 20:09Z
- 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/dhrs, 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.