magent

Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.

TradingLiveeip155:8453Exactvia cdp
Aua-siBphLutsUrologyCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 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 2026-08-31 13:33Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x836Be278f1739fB4308091cD1852F7971Bc19Ee2

The 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/aua_si",
        "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/aua_si",
    "tags": [
      "aua-si",
      "bph",
      "luts",
      "urology",
      "calculator"
    ],
    "mimeType": "application/json",
    "description": "Barry 1992 AUA-SI: seven caller-assigned integers 0-5 for incomplete emptying, frequency, intermittency, urgency, weak stream, straining (hesitancy), and nocturia. Sum 0-35. magent does not take a voiding history. Barry 1992 published no mild/moderate/severe total-score bands; later AUA-guideline 0-7/8-19/20-35 cuts are not applied. Not the 8-item IPSS quality-of-life question, not a BPH treatment order, and not a medical device.",
    "serviceName": "magent"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "urgency": 0,
            "nocturia": 0,
            "frequency": 0,
            "straining": 0,
            "weak_stream": 0,
            "intermittency": 0,
            "incomplete_emptying": 0
          }
        },
        "output": {
          "type": "json",
          "example": {
            "score": 0,
            "formula": "aua_si",
            "citation": {
              "id": "barry-1992",
              "doi": "10.1016/S0022-5347(17)36966-5",
              "pmid": "1279218",
              "title": "The American Urological Association symptom index for benign prostatic hyperplasia",
              "source": "J Urol. 1992;148(5):1549-1557",
              "authors": "Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT"
            },
            "max_score": 35,
            "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.",
            "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"
          }
        },
        "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": [
                  "incomplete_emptying",
                  "frequency",
                  "intermittency",
                  "urgency",
                  "weak_stream",
                  "straining",
                  "nocturia"
                ],
                "properties": {
                  "urgency": {
                    "type": "integer",
                    "description": "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."
                  },
                  "nocturia": {
                    "type": "integer",
                    "description": "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."
                  },
                  "frequency": {
                    "type": "integer",
                    "description": "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."
                  },
                  "straining": {
                    "type": "integer",
                    "description": "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."
                  },
                  "weak_stream": {
                    "type": "integer",
                    "description": "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."
                  },
                  "intermittency": {
                    "type": "integer",
                    "description": "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."
                  },
                  "incomplete_emptying": {
                    "type": "integer",
                    "description": "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."
                  }
                }
              }
            },
            "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.

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/aua_si",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 600
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "items": [
            {
              "urgency": 0,
              "nocturia": 0,
              "frequency": 0,
              "straining": 0,
              "weak_stream": 0,
              "intermittency": 0,
              "incomplete_emptying": 0
            },
            {
              "urgency": 0,
              "nocturia": 0,
              "frequency": 0,
              "straining": 0,
              "weak_stream": 0,
              "intermittency": 0,
              "incomplete_emptying": 0
            }
          ]
        },
        "type": "http",
        "method": "POST"
      },
      "output": {
        "type": "json",
        "example": {
          "path": "/api/calc/aua_si",
          "count": 2,
          "items": [
            {
              "score": 0,
              "formula": "aua_si",
              "citation": {
                "id": "barry-1992",
                "doi": "10.1016/S0022-5347(17)36966-5",
                "pmid": "1279218",
                "title": "The American Urological Association symptom index for benign prostatic hyperplasia",
                "source": "J Urol. 1992;148(5):1549-1557",
                "authors": "Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT"
              },
              "max_score": 35,
              "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.",
              "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"
            },
            {
              "score": 0,
              "formula": "aua_si",
              "citation": {
                "id": "barry-1992",
                "doi": "10.1016/S0022-5347(17)36966-5",
                "pmid": "1279218",
                "title": "The American Urological Association symptom index for benign prostatic hyperplasia",
                "source": "J Urol. 1992;148(5):1549-1557",
                "authors": "Barry MJ, Fowler FJ Jr, O'Leary MP, Bruskewitz RC, Holtgrewe HL, Mebust WK, Cockett AT"
              },
              "max_score": 35,
              "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.",
              "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"
            }
          ]
        }
      },
      "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": [
                      "incomplete_emptying",
                      "frequency",
                      "intermittency",
                      "urgency",
                      "weak_stream",
                      "straining",
                      "nocturia"
                    ],
                    "properties": {
                      "urgency": {
                        "type": "integer",
                        "description": "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."
                      },
                      "nocturia": {
                        "type": "integer",
                        "description": "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."
                      },
                      "frequency": {
                        "type": "integer",
                        "description": "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."
                      },
                      "straining": {
                        "type": "integer",
                        "description": "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."
                      },
                      "weak_stream": {
                        "type": "integer",
                        "description": "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."
                      },
                      "intermittency": {
                        "type": "integer",
                        "description": "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."
                      },
                      "incomplete_emptying": {
                        "type": "integer",
                        "description": "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."
                      }
                    }
                  },
                  "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 13:33Z
Last indexed by Roundhouse
2026-09-07 06:20Z
Last enriched (probe, favicon, geo)
2026-09-22 21:45Z
x402 version
2
Max timeout
600s
Liveness probe
HTTP 402
Report

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. 9 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show 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/aua_si, 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.