magent

Agachan 1996 constipation scoring system from eight caller-assigned table bands (frequency, painful evacuation, incomplete evacuation, abdominal pain, time per attempt, assistance 0-2, unsuccessful attempts per 24 hours, duration). Total 0-30. constipation true iff score > 15. magent does not take a bowel history. Not a medical device, not a laxative order, not Jorge 1993 fecal incontinence scoring.

TradingLiveeip155:8453Exactvia cdp
Constipation-scoreAgachanGiWexner-constipationCalculator
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 13:10Z
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/wexner_constipation",
        "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/wexner_constipation",
    "tags": [
      "constipation-score",
      "agachan",
      "gi",
      "wexner-constipation",
      "calculator"
    ],
    "mimeType": "application/json",
    "description": "Agachan 1996 constipation scoring system from eight caller-assigned table bands (frequency, painful evacuation, incomplete evacuation, abdominal pain, time per attempt, assistance 0-2, unsuccessful attempts per 24 hours, duration). Total 0-30. constipation true iff score > 15. magent does not take a bowel history. Not a medical device, not a laxative order, not Jorge 1993 fecal incontinence scoring.",
    "serviceName": "magent"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "duration": "0",
            "frequency": "1_2_times_per_1_2_days",
            "assistance": "without_assistance",
            "abdominal_pain": "never",
            "time_per_attempt": "less_than_5",
            "painful_evacuation": "never",
            "incomplete_evacuation": "never",
            "unsuccessful_attempts": "never"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "score": 0,
            "cutoff": 15,
            "formula": "wexner_constipation",
            "citation": {
              "id": "agachan-1996",
              "doi": "10.1007/BF02056950",
              "pmid": "8646957",
              "title": "A constipation scoring system to simplify evaluation and management of constipated patients",
              "source": "Dis Colon Rectum. 1996;39(6):681-685",
              "authors": "Agachan F, Chen T, Pfeifer J, Reissman P, Wexner SD"
            },
            "max_score": 30,
            "components": [
              {
                "value": "1_2_times_per_1_2_days",
                "factor": "frequency",
                "points": 0,
                "present": false
              },
              {
                "value": "never",
                "factor": "painful_evacuation",
                "points": 0,
                "present": false
              },
              {
                "value": "never",
                "factor": "incomplete_evacuation",
                "points": 0,
                "present": false
              },
              {
                "value": "never",
                "factor": "abdominal_pain",
                "points": 0,
                "present": false
              },
              {
                "value": "less_than_5",
                "factor": "time_per_attempt",
                "points": 0,
                "present": false
              },
              {
                "value": "without_assistance",
                "factor": "assistance",
                "points": 0,
                "present": false
              },
              {
                "value": "never",
                "factor": "unsuccessful_attempts",
                "points": 0,
                "present": false
              },
              {
                "value": "0",
                "factor": "duration",
                "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.",
            "constipation": false,
            "formula_expression": "wexner_constipation = frequency + painful_evacuation + incomplete_evacuation + abdominal_pain + time_per_attempt + assistance + unsuccessful_attempts + duration; Agachan 1996 eight-item constipation scoring system; frequency, painful_evacuation, incomplete_evacuation, abdominal_pain, time_per_attempt, unsuccessful_attempts, and duration each 0-4; assistance 0-2; max 30; constipation iff score > 15"
          }
        },
        "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": [
                  "frequency",
                  "painful_evacuation",
                  "incomplete_evacuation",
                  "abdominal_pain",
                  "time_per_attempt",
                  "assistance",
                  "unsuccessful_attempts",
                  "duration"
                ],
                "properties": {
                  "duration": {
                    "enum": [
                      "0",
                      "1_5",
                      "5_10",
                      "10_20",
                      "more_than_20"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 duration of constipation in years. 0 scores 0; 1_5 scores 1; 5_10 scores 2; 10_20 scores 3; more_than_20 scores 4. Adjacent printed ranges overlap; the caller assigns the published band. magent does not take a bowel history."
                  },
                  "frequency": {
                    "enum": [
                      "1_2_times_per_1_2_days",
                      "2_times_per_week",
                      "once_per_week",
                      "less_than_once_per_week",
                      "less_than_once_per_month"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 frequency of bowel movements. 1_2_times_per_1_2_days (1-2 times per 1-2 days) scores 0; 2_times_per_week scores 1; once_per_week scores 2; less_than_once_per_week scores 3; less_than_once_per_month scores 4. magent does not take a bowel history."
                  },
                  "assistance": {
                    "enum": [
                      "without_assistance",
                      "stimulative_laxatives",
                      "digital_assistance_or_enema"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 type of assistance. without_assistance scores 0; stimulative_laxatives scores 1; digital_assistance_or_enema scores 2. This item is 0-2 in that table, not 0-4. magent does not order laxatives, enemas, or digital assistance."
                  },
                  "abdominal_pain": {
                    "enum": [
                      "never",
                      "rarely",
                      "sometimes",
                      "usually",
                      "always"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 abdominal pain. never scores 0; rarely 1; sometimes 2; usually 3; always 4. magent does not take a bowel history."
                  },
                  "time_per_attempt": {
                    "enum": [
                      "less_than_5",
                      "5_10",
                      "10_20",
                      "20_30",
                      "more_than_30"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 minutes in lavatory per attempt. less_than_5 scores 0; 5_10 scores 1; 10_20 scores 2; 20_30 scores 3; more_than_30 scores 4. magent does not time the attempt."
                  },
                  "painful_evacuation": {
                    "enum": [
                      "never",
                      "rarely",
                      "sometimes",
                      "usually",
                      "always"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 painful evacuation effort. never scores 0; rarely 1; sometimes 2; usually 3; always 4. magent does not take a bowel history."
                  },
                  "incomplete_evacuation": {
                    "enum": [
                      "never",
                      "rarely",
                      "sometimes",
                      "usually",
                      "always"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 feeling of incomplete evacuation. never scores 0; rarely 1; sometimes 2; usually 3; always 4. magent does not take a bowel history."
                  },
                  "unsuccessful_attempts": {
                    "enum": [
                      "never",
                      "1_3",
                      "3_6",
                      "6_9",
                      "more_than_9"
                    ],
                    "type": "string",
                    "description": "Caller-assigned Agachan 1996 unsuccessful attempts for evacuation per 24 hours. never scores 0; 1_3 scores 1; 3_6 scores 2; 6_9 scores 3; more_than_9 scores 4. Adjacent printed ranges overlap; the caller assigns the published band. magent does not take a bowel 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/wexner_constipation",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 600
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "items": [
            {
              "duration": "0",
              "frequency": "1_2_times_per_1_2_days",
              "assistance": "without_assistance",
              "abdominal_pain": "never",
              "time_per_attempt": "less_than_5",
              "painful_evacuation": "never",
              "incomplete_evacuation": "never",
              "unsuccessful_attempts": "never"
            },
            {
              "duration": "0",
              "frequency": "1_2_times_per_1_2_days",
              "assistance": "without_assistance",
              "abdominal_pain": "never",
              "time_per_attempt": "less_than_5",
              "painful_evacuation": "never",
              "incomplete_evacuation": "never",
              "unsuccessful_attempts": "never"
            }
          ]
        },
        "type": "http",
        "method": "POST"
      },
      "output": {
        "type": "json",
        "example": {
          "path": "/api/calc/wexner_constipation",
          "count": 2,
          "items": [
            {
              "score": 0,
              "cutoff": 15,
              "formula": "wexner_constipation",
              "citation": {
                "id": "agachan-1996",
                "doi": "10.1007/BF02056950",
                "pmid": "8646957",
                "title": "A constipation scoring system to simplify evaluation and management of constipated patients",
                "source": "Dis Colon Rectum. 1996;39(6):681-685",
                "authors": "Agachan F, Chen T, Pfeifer J, Reissman P, Wexner SD"
              },
              "max_score": 30,
              "components": [
                {
                  "value": "1_2_times_per_1_2_days",
                  "factor": "frequency",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "painful_evacuation",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "incomplete_evacuation",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "abdominal_pain",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "less_than_5",
                  "factor": "time_per_attempt",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "without_assistance",
                  "factor": "assistance",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "unsuccessful_attempts",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "0",
                  "factor": "duration",
                  "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.",
              "constipation": false,
              "formula_expression": "wexner_constipation = frequency + painful_evacuation + incomplete_evacuation + abdominal_pain + time_per_attempt + assistance + unsuccessful_attempts + duration; Agachan 1996 eight-item constipation scoring system; frequency, painful_evacuation, incomplete_evacuation, abdominal_pain, time_per_attempt, unsuccessful_attempts, and duration each 0-4; assistance 0-2; max 30; constipation iff score > 15"
            },
            {
              "score": 0,
              "cutoff": 15,
              "formula": "wexner_constipation",
              "citation": {
                "id": "agachan-1996",
                "doi": "10.1007/BF02056950",
                "pmid": "8646957",
                "title": "A constipation scoring system to simplify evaluation and management of constipated patients",
                "source": "Dis Colon Rectum. 1996;39(6):681-685",
                "authors": "Agachan F, Chen T, Pfeifer J, Reissman P, Wexner SD"
              },
              "max_score": 30,
              "components": [
                {
                  "value": "1_2_times_per_1_2_days",
                  "factor": "frequency",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "painful_evacuation",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "incomplete_evacuation",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "abdominal_pain",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "less_than_5",
                  "factor": "time_per_attempt",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "without_assistance",
                  "factor": "assistance",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "never",
                  "factor": "unsuccessful_attempts",
                  "points": 0,
                  "present": false
                },
                {
                  "value": "0",
                  "factor": "duration",
                  "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.",
              "constipation": false,
              "formula_expression": "wexner_constipation = frequency + painful_evacuation + incomplete_evacuation + abdominal_pain + time_per_attempt + assistance + unsuccessful_attempts + duration; Agachan 1996 eight-item constipation scoring system; frequency, painful_evacuation, incomplete_evacuation, abdominal_pain, time_per_attempt, unsuccessful_attempts, and duration each 0-4; assistance 0-2; max 30; constipation iff score > 15"
            }
          ]
        }
      },
      "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": [
                      "frequency",
                      "painful_evacuation",
                      "incomplete_evacuation",
                      "abdominal_pain",
                      "time_per_attempt",
                      "assistance",
                      "unsuccessful_attempts",
                      "duration"
                    ],
                    "properties": {
                      "duration": {
                        "enum": [
                          "0",
                          "1_5",
                          "5_10",
                          "10_20",
                          "more_than_20"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 duration of constipation in years. 0 scores 0; 1_5 scores 1; 5_10 scores 2; 10_20 scores 3; more_than_20 scores 4. Adjacent printed ranges overlap; the caller assigns the published band. magent does not take a bowel history."
                      },
                      "frequency": {
                        "enum": [
                          "1_2_times_per_1_2_days",
                          "2_times_per_week",
                          "once_per_week",
                          "less_than_once_per_week",
                          "less_than_once_per_month"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 frequency of bowel movements. 1_2_times_per_1_2_days (1-2 times per 1-2 days) scores 0; 2_times_per_week scores 1; once_per_week scores 2; less_than_once_per_week scores 3; less_than_once_per_month scores 4. magent does not take a bowel history."
                      },
                      "assistance": {
                        "enum": [
                          "without_assistance",
                          "stimulative_laxatives",
                          "digital_assistance_or_enema"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 type of assistance. without_assistance scores 0; stimulative_laxatives scores 1; digital_assistance_or_enema scores 2. This item is 0-2 in that table, not 0-4. magent does not order laxatives, enemas, or digital assistance."
                      },
                      "abdominal_pain": {
                        "enum": [
                          "never",
                          "rarely",
                          "sometimes",
                          "usually",
                          "always"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 abdominal pain. never scores 0; rarely 1; sometimes 2; usually 3; always 4. magent does not take a bowel history."
                      },
                      "time_per_attempt": {
                        "enum": [
                          "less_than_5",
                          "5_10",
                          "10_20",
                          "20_30",
                          "more_than_30"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 minutes in lavatory per attempt. less_than_5 scores 0; 5_10 scores 1; 10_20 scores 2; 20_30 scores 3; more_than_30 scores 4. magent does not time the attempt."
                      },
                      "painful_evacuation": {
                        "enum": [
                          "never",
                          "rarely",
                          "sometimes",
                          "usually",
                          "always"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 painful evacuation effort. never scores 0; rarely 1; sometimes 2; usually 3; always 4. magent does not take a bowel history."
                      },
                      "incomplete_evacuation": {
                        "enum": [
                          "never",
                          "rarely",
                          "sometimes",
                          "usually",
                          "always"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 feeling of incomplete evacuation. never scores 0; rarely 1; sometimes 2; usually 3; always 4. magent does not take a bowel history."
                      },
                      "unsuccessful_attempts": {
                        "enum": [
                          "never",
                          "1_3",
                          "3_6",
                          "6_9",
                          "more_than_9"
                        ],
                        "type": "string",
                        "description": "Caller-assigned Agachan 1996 unsuccessful attempts for evacuation per 24 hours. never scores 0; 1_3 scores 1; 3_6 scores 2; 6_9 scores 3; more_than_9 scores 4. Adjacent printed ranges overlap; the caller assigns the published band. magent does not take a bowel 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 13:10Z
Last indexed by Roundhouse
2026-09-07 06:20Z
Last enriched (probe, favicon, geo)
2026-09-22 22:15Z
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/wexner_constipation, 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.