magent

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

DataLiveeip155:8453Exactvia cdp
Gds-15DepressionGeriatricEmergencyCalculator
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 23:20Z
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.

{
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  "accepts": [
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        "paymentFlow": "upfront",
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    "tags": [
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      "depression",
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      "emergency",
      "calculator"
    ],
    "mimeType": "application/json",
    "description": "Sheikh 1986 GDS-15: fifteen yes/no items as asked. Reverse-scored (false=1): satisfied_with_life, good_spirits, happy_most_of_time, wonderful_to_be_alive, full_of_energy; other ten score 1 if true. Sum 0-15. No later 0-4/5-9/10+ cutoffs. Not a diagnosis, not PHQ-9, not the 30-item GDS, not a medical device. magent does not interview.",
    "serviceName": "magent"
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  "extensions": {
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        "output": {
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              "title": "Geriatric Depression Scale (GDS): recent evidence and development of a shorter version",
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                "points": 0,
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              {
                "factor": "wonderful_to_be_alive",
                "points": 0,
                "present": false
              },
              {
                "factor": "pretty_worthless",
                "points": 0,
                "present": false
              },
              {
                "factor": "full_of_energy",
                "points": 0,
                "present": false
              },
              {
                "factor": "situation_hopeless",
                "points": 0,
                "present": false
              },
              {
                "factor": "most_people_better_off",
                "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": "GDS-15 = (1 if not satisfied_with_life) + dropped_activities + life_empty + often_bored + (1 if not good_spirits) + afraid_something_bad + (1 if not happy_most_of_time) + often_helpless + prefer_stay_home + more_memory_problems + (1 if not wonderful_to_be_alive) + pretty_worthless + (1 if not full_of_energy) + situation_hopeless + most_people_better_off; Sheikh 1986 15-item short form; each yes/no as asked; reverse-scored items 1, 5, 7, 11, 13; max 15; no total-score severity bands"
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        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
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            "required": [
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              "method"
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            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
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                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "headers": {
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                "additionalProperties": {
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              },
              "queryParams": {
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                "required": [
                  "satisfied_with_life",
                  "dropped_activities",
                  "life_empty",
                  "often_bored",
                  "good_spirits",
                  "afraid_something_bad",
                  "happy_most_of_time",
                  "often_helpless",
                  "prefer_stay_home",
                  "more_memory_problems",
                  "wonderful_to_be_alive",
                  "pretty_worthless",
                  "full_of_energy",
                  "situation_hopeless",
                  "most_people_better_off"
                ],
                "properties": {
                  "life_empty": {
                    "type": "boolean",
                    "description": "Do you feel that your life is empty? (Sheikh 1986 GDS-15 item 3). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "often_bored": {
                    "type": "boolean",
                    "description": "Do you often get bored? (Sheikh 1986 GDS-15 item 4). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "good_spirits": {
                    "type": "boolean",
                    "description": "Are you in good spirits most of the time? (Sheikh 1986 GDS-15 item 5). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "full_of_energy": {
                    "type": "boolean",
                    "description": "Do you feel full of energy? (Sheikh 1986 GDS-15 item 13). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "often_helpless": {
                    "type": "boolean",
                    "description": "Do you often feel helpless? (Sheikh 1986 GDS-15 item 8). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "prefer_stay_home": {
                    "type": "boolean",
                    "description": "Do you prefer to stay at home, rather than going out and doing new things? (Sheikh 1986 GDS-15 item 9). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "pretty_worthless": {
                    "type": "boolean",
                    "description": "Do you feel pretty worthless the way you are now? (Sheikh 1986 GDS-15 item 12). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "dropped_activities": {
                    "type": "boolean",
                    "description": "Have you dropped many of your activities and interests? (Sheikh 1986 GDS-15 item 2). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "happy_most_of_time": {
                    "type": "boolean",
                    "description": "Do you feel happy most of the time? (Sheikh 1986 GDS-15 item 7). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "situation_hopeless": {
                    "type": "boolean",
                    "description": "Do you feel that your situation is hopeless? (Sheikh 1986 GDS-15 item 14). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "satisfied_with_life": {
                    "type": "boolean",
                    "description": "Are you basically satisfied with your life? (Sheikh 1986 GDS-15 item 1). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "afraid_something_bad": {
                    "type": "boolean",
                    "description": "Are you afraid that something bad is going to happen to you? (Sheikh 1986 GDS-15 item 6). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "more_memory_problems": {
                    "type": "boolean",
                    "description": "Do you feel you have more problems with memory than most? (Sheikh 1986 GDS-15 item 10). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "wonderful_to_be_alive": {
                    "type": "boolean",
                    "description": "Do you think it is wonderful to be alive now? (Sheikh 1986 GDS-15 item 11). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                  },
                  "most_people_better_off": {
                    "type": "boolean",
                    "description": "Do you think that most people are better off than you are? (Sheikh 1986 GDS-15 item 15). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                  }
                }
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  "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
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Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "items": [
            {
              "life_empty": false,
              "often_bored": false,
              "good_spirits": true,
              "full_of_energy": true,
              "often_helpless": false,
              "prefer_stay_home": false,
              "pretty_worthless": false,
              "dropped_activities": false,
              "happy_most_of_time": true,
              "situation_hopeless": false,
              "satisfied_with_life": true,
              "afraid_something_bad": false,
              "more_memory_problems": false,
              "wonderful_to_be_alive": true,
              "most_people_better_off": false
            },
            {
              "life_empty": false,
              "often_bored": false,
              "good_spirits": true,
              "full_of_energy": true,
              "often_helpless": false,
              "prefer_stay_home": false,
              "pretty_worthless": false,
              "dropped_activities": false,
              "happy_most_of_time": true,
              "situation_hopeless": false,
              "satisfied_with_life": true,
              "afraid_something_bad": false,
              "more_memory_problems": false,
              "wonderful_to_be_alive": true,
              "most_people_better_off": false
            }
          ]
        },
        "type": "http",
        "method": "POST"
      },
      "output": {
        "type": "json",
        "example": {
          "path": "/api/calc/gds_15",
          "count": 2,
          "items": [
            {
              "score": 0,
              "formula": "gds_15",
              "citation": {
                "id": "sheikh-1986",
                "doi": "10.1300/J018v05n01_09",
                "title": "Geriatric Depression Scale (GDS): recent evidence and development of a shorter version",
                "source": "Clin Gerontol. 1986;5(1-2):165-173",
                "authors": "Sheikh JI, Yesavage JA"
              },
              "max_score": 15,
              "components": [
                {
                  "factor": "satisfied_with_life",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "dropped_activities",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "life_empty",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "often_bored",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "good_spirits",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "afraid_something_bad",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "happy_most_of_time",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "often_helpless",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "prefer_stay_home",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "more_memory_problems",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "wonderful_to_be_alive",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "pretty_worthless",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "full_of_energy",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "situation_hopeless",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "most_people_better_off",
                  "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": "GDS-15 = (1 if not satisfied_with_life) + dropped_activities + life_empty + often_bored + (1 if not good_spirits) + afraid_something_bad + (1 if not happy_most_of_time) + often_helpless + prefer_stay_home + more_memory_problems + (1 if not wonderful_to_be_alive) + pretty_worthless + (1 if not full_of_energy) + situation_hopeless + most_people_better_off; Sheikh 1986 15-item short form; each yes/no as asked; reverse-scored items 1, 5, 7, 11, 13; max 15; no total-score severity bands"
            },
            {
              "score": 0,
              "formula": "gds_15",
              "citation": {
                "id": "sheikh-1986",
                "doi": "10.1300/J018v05n01_09",
                "title": "Geriatric Depression Scale (GDS): recent evidence and development of a shorter version",
                "source": "Clin Gerontol. 1986;5(1-2):165-173",
                "authors": "Sheikh JI, Yesavage JA"
              },
              "max_score": 15,
              "components": [
                {
                  "factor": "satisfied_with_life",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "dropped_activities",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "life_empty",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "often_bored",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "good_spirits",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "afraid_something_bad",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "happy_most_of_time",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "often_helpless",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "prefer_stay_home",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "more_memory_problems",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "wonderful_to_be_alive",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "pretty_worthless",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "full_of_energy",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "situation_hopeless",
                  "points": 0,
                  "present": false
                },
                {
                  "factor": "most_people_better_off",
                  "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": "GDS-15 = (1 if not satisfied_with_life) + dropped_activities + life_empty + often_bored + (1 if not good_spirits) + afraid_something_bad + (1 if not happy_most_of_time) + often_helpless + prefer_stay_home + more_memory_problems + (1 if not wonderful_to_be_alive) + pretty_worthless + (1 if not full_of_energy) + situation_hopeless + most_people_better_off; Sheikh 1986 15-item short form; each yes/no as asked; reverse-scored items 1, 5, 7, 11, 13; max 15; no total-score severity bands"
            }
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      "iconUrl": "https://api.magentlab.com/favicon.ico"
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      "properties": {
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          "properties": {
            "body": {
              "type": "object",
              "required": [
                "items"
              ],
              "properties": {
                "items": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "satisfied_with_life",
                      "dropped_activities",
                      "life_empty",
                      "often_bored",
                      "good_spirits",
                      "afraid_something_bad",
                      "happy_most_of_time",
                      "often_helpless",
                      "prefer_stay_home",
                      "more_memory_problems",
                      "wonderful_to_be_alive",
                      "pretty_worthless",
                      "full_of_energy",
                      "situation_hopeless",
                      "most_people_better_off"
                    ],
                    "properties": {
                      "life_empty": {
                        "type": "boolean",
                        "description": "Do you feel that your life is empty? (Sheikh 1986 GDS-15 item 3). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "often_bored": {
                        "type": "boolean",
                        "description": "Do you often get bored? (Sheikh 1986 GDS-15 item 4). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "good_spirits": {
                        "type": "boolean",
                        "description": "Are you in good spirits most of the time? (Sheikh 1986 GDS-15 item 5). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "full_of_energy": {
                        "type": "boolean",
                        "description": "Do you feel full of energy? (Sheikh 1986 GDS-15 item 13). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "often_helpless": {
                        "type": "boolean",
                        "description": "Do you often feel helpless? (Sheikh 1986 GDS-15 item 8). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "prefer_stay_home": {
                        "type": "boolean",
                        "description": "Do you prefer to stay at home, rather than going out and doing new things? (Sheikh 1986 GDS-15 item 9). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "pretty_worthless": {
                        "type": "boolean",
                        "description": "Do you feel pretty worthless the way you are now? (Sheikh 1986 GDS-15 item 12). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "dropped_activities": {
                        "type": "boolean",
                        "description": "Have you dropped many of your activities and interests? (Sheikh 1986 GDS-15 item 2). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "happy_most_of_time": {
                        "type": "boolean",
                        "description": "Do you feel happy most of the time? (Sheikh 1986 GDS-15 item 7). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "situation_hopeless": {
                        "type": "boolean",
                        "description": "Do you feel that your situation is hopeless? (Sheikh 1986 GDS-15 item 14). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "satisfied_with_life": {
                        "type": "boolean",
                        "description": "Are you basically satisfied with your life? (Sheikh 1986 GDS-15 item 1). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "afraid_something_bad": {
                        "type": "boolean",
                        "description": "Are you afraid that something bad is going to happen to you? (Sheikh 1986 GDS-15 item 6). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "more_memory_problems": {
                        "type": "boolean",
                        "description": "Do you feel you have more problems with memory than most? (Sheikh 1986 GDS-15 item 10). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "wonderful_to_be_alive": {
                        "type": "boolean",
                        "description": "Do you think it is wonderful to be alive now? (Sheikh 1986 GDS-15 item 11). true or false as assigned by the caller. false is the depression-direction answer and scores 1. magent does not interview the patient."
                      },
                      "most_people_better_off": {
                        "type": "boolean",
                        "description": "Do you think that most people are better off than you are? (Sheikh 1986 GDS-15 item 15). true or false as assigned by the caller. true is the depression-direction answer and scores 1. magent does not interview the patient."
                      }
                    }
                  },
                  "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 23:20Z
Last indexed by Roundhouse
2026-09-07 06:20Z
Last enriched (probe, favicon, geo)
2026-09-23 20:15Z
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/gds_15, 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.