CCS 2014 CHADS-65 algorithm for nonvalvular AF/AFL stroke-prevention discussion
CCS 2014 CHADS-65 algorithm for nonvalvular AF/AFL stroke-prevention discussion. Oral anticoagulant if age ≥65 or CHF, hypertension, diabetes, or prior stroke/TIA. Else aspirin if coronary, aortic, or peripheral arterial disease. Else none. Not CHADS2, not CHA2DS2-VASc, not HAS-BLED, and not an anticoagulation order. magent does not examine the patient.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
267 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/chads_65
| Category | Everything else |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 267 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"age": 70,
"chf": false,
"diabetes": false,
"hypertension": false,
"stroke_tia": false,
"vascular_disease": false
},
{
"age": 70,
"chf": false,
"diabetes": false,
"hypertension": false,
"stroke_tia": false,
"vascular_disease": false
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"age": {
"description": "Age in years (18-120). \u226565 indicates oral anticoagulant (OAC). Age \u226575 is subsumed by \u226565; there is no separate age\u226575 input. 64 does not indicate OAC on age alone.",
"type": "integer"
},
"chf": {
"description": "Congestive heart failure as assigned by the caller. true or false. Any true CHADS2 factor other than age\u226575 (CHF, hypertension, diabetes, prior stroke/TIA) indicates OAC.",
"type": "boolean"
},
"diabetes": {
"description": "Diabetes mellitus as assigned by the caller. true or false. Indicates OAC when true.",
"type": "boolean"
},
"hypertension": {
"description": "Hypertension history as assigned by the caller. true or false. Indicates OAC when true.",
"type": "boolean"
},
"stroke_tia": {
"description": "Prior stroke or TIA as assigned by the caller. true or false. Indicates OAC when true.",
"type": "boolean"
},
"vascular_disease": {
"description": "Coronary, aortic, or peripheral arterial disease as assigned by the caller. true or false. Indicates ASA only when OAC is not indicated.",
"type": "boolean"
}
},
"required": [
"age",
"chf",
"hypertension",
"diabetes",
"stroke_tia",
"vascular_disease"
],
"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"
}