AUA symptom index

AUA-SI

Sum seven caller-assigned Barry 1992 AUA-SI items (each integer 0-5) and return the published 0-35 total. Does not apply later total-score severity bands and does not score the IPSS quality-of-life item.

LIVE $0.005 USDC GET /api/calc/aua_si

Markdown: /docs/aua-si.md · Canonical: https://magentlab.com/docs/aua-si

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

When to use

When an agent already has Barry 1992 0-5 integers for the seven AUA-SI items and needs the published total. magent does not take a voiding history, diagnose BPH, order treatment, or apply later 0-7/8-19/20-35 cuts.

When not to use

Not a medical device and not a BPH treatment order.
Each of the seven items is a caller-assigned integer 0-5. magent does not take a voiding history.
This is Barry 1992 AUA-SI only (seven items; max 35). magent does not score the later IPSS 8th quality-of-life item.
Barry 1992 published no total-score severity bands. This tool returns score and max_score only. It does not apply later AUA-guideline 0-7/8-19/20-35 mild/moderate/severe cuts.

Formula

AUA-SI = incomplete_emptying + frequency + intermittency + urgency + weak_stream + straining + nocturia; each caller-assigned 0-5; max 35; Barry 1992; no total-score severity bands; not IPSS quality-of-life item

Citation

Title: The American Urological Association symptom index for benign prostatic hyperplasia
Authors: Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT
Source: J Urol. 1992;148(5):1549-1557
DOI: 10.1016/S0022-5347(17)36966-5

Worked example

All items 0

Given: frequency=0incomplete_emptying=0intermittency=0nocturia=0straining=0urgency=0weak_stream=0

incomplete_emptying, frequency, intermittency, urgency, weak_stream, straining, and nocturia are 0 as assigned by the caller
Score = 0 (max 35). Barry 1992 published no total-score severity band.

Seven items at 3

Given: frequency=3incomplete_emptying=3intermittency=3nocturia=3straining=3urgency=3weak_stream=3

each of the seven Barry 1992 AUA-SI items is 3 as assigned by the caller
Score = 21 (max 35). No total-score severity band.

Also searched as

AUA-SI
AUA symptom index
American Urological Association symptom index
Barry 1992 AUA-SI
BPH symptom score
7-item AUA symptom index
IPSS (7-item AUA-SI, not 8-item QoL)
prostate symptom index
LUTS AUA-SI

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/aua_si?incomplete_emptying=0&frequency=0&intermittency=0&urgency=0&weak_stream=0&straining=0&nocturia=0

Full URL: https://api.magentlab.com/api/calc/aua_si?incomplete_emptying=0&frequency=0&intermittency=0&urgency=0&weak_stream=0&straining=0&nocturia=0

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/aua_si?incomplete_emptying=0&frequency=0&intermittency=0&urgency=0&weak_stream=0&straining=0&nocturia=0"

Parameters

Name	Type	Required	Description
`incomplete_emptying`	integer	required	Caller-assigned Barry 1992 incomplete emptying (integer 0-5: 0 not at all, 1 less than 1 time in 5, 2 less than half the time, 3 about half the time, 4 more than half the time, 5 almost always): sensation of not emptying the bladder completely after finishing urination. magent does not take a voiding history.
`frequency`	integer	required	Caller-assigned Barry 1992 frequency (integer 0-5: 0 not at all to 5 almost always): urinating again less than two hours after finishing. magent does not take a voiding history.
`intermittency`	integer	required	Caller-assigned Barry 1992 intermittency (integer 0-5: 0 not at all to 5 almost always): stopping and starting again several times when urinating. magent does not take a voiding history.
`urgency`	integer	required	Caller-assigned Barry 1992 urgency (integer 0-5: 0 not at all to 5 almost always): difficulty postponing urination. magent does not take a voiding history.
`weak_stream`	integer	required	Caller-assigned Barry 1992 weak urinary stream (integer 0-5: 0 not at all to 5 almost always). magent does not take a voiding history.
`straining`	integer	required	Caller-assigned Barry 1992 hesitancy/straining (integer 0-5: 0 not at all to 5 almost always): push or strain to begin urination. magent does not take a voiding history.
`nocturia`	integer	required	Caller-assigned Barry 1992 nocturia (integer 0-5: 0 none, 1 one time, 2 two times, 3 three times, 4 four times, 5 five or more times): times typically getting up to urinate from bedtime until morning. magent does not take a voiding history.

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/aua_si Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

1 to 25 items. Each item uses the same keys as the GET query parameters.
POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "frequency": "0",
      "incomplete_emptying": "0",
      "intermittency": "0",
      "nocturia": "0",
      "straining": "0",
      "urgency": "0",
      "weak_stream": "0"
    },
    {
      "frequency": "0",
      "incomplete_emptying": "0",
      "intermittency": "0",
      "nocturia": "0",
      "straining": "0",
      "urgency": "0",
      "weak_stream": "0"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/aua_si",
  "items": [
    {
      "components": [
        {
          "value": 0,
          "factor": "incomplete_emptying",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "frequency",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "intermittency",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "urgency",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "weak_stream",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "straining",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "nocturia",
          "points": 0,
          "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.",
      "citation": {
        "authors": "Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT",
        "doi": "10.1016/S0022-5347(17)36966-5",
        "id": "barry-1992",
        "pmid": "1279218",
        "source": "J Urol. 1992;148(5):1549-1557",
        "title": "The American Urological Association symptom index for benign prostatic hyperplasia"
      },
      "formula": "aua_si",
      "formula_expression": "AUA-SI = incomplete_emptying + frequency + intermittency + urgency + weak_stream + straining + nocturia; each caller-assigned 0-5; max 35; Barry 1992; no total-score severity bands; not IPSS quality-of-life item",
      "max_score": 35,
      "score": 0
    },
    {
      "components": [
        {
          "value": 0,
          "factor": "incomplete_emptying",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "frequency",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "intermittency",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "urgency",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "weak_stream",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "straining",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "nocturia",
          "points": 0,
          "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.",
      "citation": {
        "authors": "Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT",
        "doi": "10.1016/S0022-5347(17)36966-5",
        "id": "barry-1992",
        "pmid": "1279218",
        "source": "J Urol. 1992;148(5):1549-1557",
        "title": "The American Urological Association symptom index for benign prostatic hyperplasia"
      },
      "formula": "aua_si",
      "formula_expression": "AUA-SI = incomplete_emptying + frequency + intermittency + urgency + weak_stream + straining + nocturia; each caller-assigned 0-5; max 35; Barry 1992; no total-score severity bands; not IPSS quality-of-life item",
      "max_score": 35,
      "score": 0
    }
  ]
}

Response

Field	Type	Description
`formula`	string	aua_si
`formula_expression`	string	Exact expression used
`score`	integer	Barry 1992 AUA-SI sum of seven caller-assigned 0-5 items (0-35)
`max_score`	integer	Always 35
`components`	array	Per-item caller-assigned points
`citation`	object	Barry et al. J Urol 1992 citation
`disclaimer`	string	Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "value": 0,
      "factor": "incomplete_emptying",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "frequency",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "intermittency",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "urgency",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "weak_stream",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "straining",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "nocturia",
      "points": 0,
      "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.",
  "citation": {
    "authors": "Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT",
    "doi": "10.1016/S0022-5347(17)36966-5",
    "id": "barry-1992",
    "pmid": "1279218",
    "source": "J Urol. 1992;148(5):1549-1557",
    "title": "The American Urological Association symptom index for benign prostatic hyperplasia"
  },
  "formula": "aua_si",
  "formula_expression": "AUA-SI = incomplete_emptying + frequency + intermittency + urgency + weak_stream + straining + nocturia; each caller-assigned 0-5; max 35; Barry 1992; no total-score severity bands; not IPSS quality-of-life item",
  "max_score": 35,
  "score": 0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
400	`invalid_aua_si`	AUA symptom index items must be integers in the Barry 1992 published 0-5 range. Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

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Charlson CCI — Sum the nineteen Charlson 1987 original comorbidity weights and return the published 1-year mortality group.
G8 — Sum the eight Bellera 2012 G8 items (seven MNA items A, B, C, E, F, H, P plus age) and return whether the published ≤14 impaired-screen cutoff is met.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
Execution is timeout-bounded and concurrency-capped.
Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.