{ "x402Version": 2, "id": 39455, "slug": "39455", "resource": "https://api.magentlab.com/api/calc/4at", "description": "4AT (Bellelli 2014): alertness (normal 0, abnormal 4) + AMT4 mistake count 0/1/2 + attention 0/1/2 + acute change or fluctuation (false 0, true 4). Max 12. Band 0 unlikely, 1–3 possible cognitive impairment, ≥4 possible delirium. Not a delirium or dementia diagnosis. magent does not examine the patient. AMT4 is the caller-assigned mistake count only; this API does not collect age, date of birth, place, or year.", "type": "http", "serviceName": "magent", "resourceType": "Agent Service", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "5000", "amountUsd": 0.005, "maxTimeoutSeconds": 600 } ], "outputSchema": { "properties": { "example": { "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" }, "extensions": { "bazaar": { "info": { "iconUrl": "https://api.magentlab.com/favicon.ico", "input": { "body": { "items": [ { "acute_change": false, "alertness": "normal", "amt4": 0, "attention": 0 }, { "acute_change": false, "alertness": "normal", "amt4": 0, "attention": 0 } ] }, "method": "POST", "type": "http" }, "output": { "example": { "count": 2, "items": [ { "at_band": "unlikely", "citation": { "authors": "Bellelli G, Morandi A, Davis DH, Mazzola P, Turco R, Gentile S, Ryan T, Cash H, Guerini F, Torpilliesi T, Del Santo F, Trabucchi M, Annoni G, MacLullich AM", "doi": "10.1093/ageing/afu021", "id": "bellelli-2014", "pmid": "24590568", "source": "Age Ageing. 2014;43(4):496-502", "title": "Validation of the 4AT, a new instrument for rapid delirium screening: a study in 234 hospitalised older people" }, "components": [ { "factor": "alertness", "points": 0, "present": false }, { "factor": "amt4", "points": 0, "present": false, "value": 0 }, { "factor": "attention", "points": 0, "present": false, "value": 0 }, { "factor": "acute_change", "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": "4at", "formula_expression": "4AT = alertness (normal 0, abnormal 4) + amt4 (0/1/2) + attention (0/1/2) + acute_change (false 0, true 4); Bellelli 2014; max 12; 0 unlikely, 1-3 possible_cognitive_impairment, ≥4 possible_delirium", "max_score": 12, "score": 0 }, { "at_band": "unlikely", "citation": { "authors": "Bellelli G, Morandi A, Davis DH, Mazzola P, Turco R, Gentile S, Ryan T, Cash H, Guerini F, Torpilliesi T, Del Santo F, Trabucchi M, Annoni G, MacLullich AM", "doi": "10.1093/ageing/afu021", "id": "bellelli-2014", "pmid": "24590568", "source": "Age Ageing. 2014;43(4):496-502", "title": "Validation of the 4AT, a new instrument for rapid delirium screening: a study in 234 hospitalised older people" }, "components": [ { "factor": "alertness", "points": 0, "present": false }, { "factor": "amt4", "points": 0, "present": false, "value": 0 }, { "factor": "attention", "points": 0, "present": false, "value": 0 }, { "factor": "acute_change", "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": "4at", "formula_expression": "4AT = alertness (normal 0, abnormal 4) + amt4 (0/1/2) + attention (0/1/2) + acute_change (false 0, true 4); Bellelli 2014; max 12; 0 unlikely, 1-3 possible_cognitive_impairment, ≥4 possible_delirium", "max_score": 12, "score": 0 } ], "path": "/api/calc/4at" }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "additionalProperties": false, "properties": { "items": { "items": { "properties": { "acute_change": { "description": "Bellelli 2014 acute change or fluctuating course as assigned by the caller. true scores 4. magent does not take a collateral history.", "type": "boolean" }, "alertness": { "description": "Bellelli 2014 4AT item 1 as assigned by the caller. normal scores 0; abnormal scores 4. magent does not observe consciousness.", "enum": [ "normal", "abnormal" ], "type": "string" }, "amt4": { "description": "Caller-assigned AMT4 mistake count only (Bellelli 2014): 0 mistakes → 0; 1 mistake → 1; ≥2 mistakes or untestable → 2. Integer 0, 1, or 2. This API does not collect age, date of birth, place, or year.", "enum": [ 0, 1, 2 ], "type": "integer" }, "attention": { "description": "Bellelli 2014 months-backwards item as assigned by the caller. 0: achieves ≥7 months. 1: starts but <7 months or refuses. 2: untestable. Integer 0, 1, or 2. magent does not run months backwards.", "enum": [ 0, 1, 2 ], "type": "integer" } }, "required": [ "alertness", "amt4", "attention", "acute_change" ], "type": "object" }, "maxItems": 25, "minItems": 1, "type": "array" } }, "required": [ "items" ], "type": "object" }, "headers": { "additionalProperties": { "type": "string" }, "type": "object" }, "method": { "const": "POST", "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } } }, "tags": [ "4at", "delirium", "neurology", "screening", "calculator", "bazaar" ], "sourceHost": "api.magentlab.com", "lastUpdated": "2026-10-12T14:50:29.435Z", "quality": { "calls30d": 4, "uniquePayers30d": 2, "lastCalledAt": "2026-10-12T14:50:29.283Z" }, "metadata": { "serviceName": "magent", "extensions": { "bazaar": { "info": { "iconUrl": "https://api.magentlab.com/favicon.ico", "input": { "body": { "items": [ { "acute_change": false, "alertness": "normal", "amt4": 0, "attention": 0 }, { "acute_change": false, "alertness": "normal", "amt4": 0, "attention": 0 } ] }, "method": "POST", "type": "http" }, "output": { "example": { "count": 2, "items": [ { "at_band": "unlikely", "citation": { "authors": "Bellelli G, Morandi A, Davis DH, Mazzola P, Turco R, Gentile S, Ryan T, Cash H, Guerini F, Torpilliesi T, Del Santo F, Trabucchi M, Annoni G, MacLullich AM", "doi": "10.1093/ageing/afu021", "id": "bellelli-2014", "pmid": "24590568", "source": "Age Ageing. 2014;43(4):496-502", "title": "Validation of the 4AT, a new instrument for rapid delirium screening: a study in 234 hospitalised older people" }, "components": [ { "factor": "alertness", "points": 0, "present": false }, { "factor": "amt4", "points": 0, "present": false, "value": 0 }, { "factor": "attention", "points": 0, "present": false, "value": 0 }, { "factor": "acute_change", "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": "4at", "formula_expression": "4AT = alertness (normal 0, abnormal 4) + amt4 (0/1/2) + attention (0/1/2) + acute_change (false 0, true 4); Bellelli 2014; max 12; 0 unlikely, 1-3 possible_cognitive_impairment, ≥4 possible_delirium", "max_score": 12, "score": 0 }, { "at_band": "unlikely", "citation": { "authors": "Bellelli G, Morandi A, Davis DH, Mazzola P, Turco R, Gentile S, Ryan T, Cash H, Guerini F, Torpilliesi T, Del Santo F, Trabucchi M, Annoni G, MacLullich AM", "doi": "10.1093/ageing/afu021", "id": "bellelli-2014", "pmid": "24590568", "source": "Age Ageing. 2014;43(4):496-502", "title": "Validation of the 4AT, a new instrument for rapid delirium screening: a study in 234 hospitalised older people" }, "components": [ { "factor": "alertness", "points": 0, "present": false }, { "factor": "amt4", "points": 0, "present": false, "value": 0 }, { "factor": "attention", "points": 0, "present": false, "value": 0 }, { "factor": "acute_change", "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": "4at", "formula_expression": "4AT = alertness (normal 0, abnormal 4) + amt4 (0/1/2) + attention (0/1/2) + acute_change (false 0, true 4); Bellelli 2014; max 12; 0 unlikely, 1-3 possible_cognitive_impairment, ≥4 possible_delirium", "max_score": 12, "score": 0 } ], "path": "/api/calc/4at" }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "additionalProperties": false, "properties": { "items": { "items": { "properties": { "acute_change": { "description": "Bellelli 2014 acute change or fluctuating course as assigned by the caller. true scores 4. magent does not take a collateral history.", "type": "boolean" }, "alertness": { "description": "Bellelli 2014 4AT item 1 as assigned by the caller. normal scores 0; abnormal scores 4. magent does not observe consciousness.", "enum": [ "normal", "abnormal" ], "type": "string" }, "amt4": { "description": "Caller-assigned AMT4 mistake count only (Bellelli 2014): 0 mistakes → 0; 1 mistake → 1; ≥2 mistakes or untestable → 2. Integer 0, 1, or 2. This API does not collect age, date of birth, place, or year.", "enum": [ 0, 1, 2 ], "type": "integer" }, "attention": { "description": "Bellelli 2014 months-backwards item as assigned by the caller. 0: achieves ≥7 months. 1: starts but <7 months or refuses. 2: untestable. Integer 0, 1, or 2. magent does not run months backwards.", "enum": [ 0, 1, 2 ], "type": "integer" } }, "required": [ "alertness", "amt4", "attention", "acute_change" ], "type": "object" }, "maxItems": 25, "minItems": 1, "type": "array" } }, "required": [ "items" ], "type": "object" }, "headers": { "additionalProperties": { "type": "string" }, "type": "object" }, "method": { "const": "POST", "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } } } }, "liveness": { "reliability": null }, "verified": false, "featured": false, "provider": { "host": "api.magentlab.com", "manifest_name": "api.magentlab.com", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-10-14T01:15:01.050Z" }, "exampleResponse": { "example": {}, "type": "string" } }