2013 ACCF/AHA heart-failure stages (Yancy) from four caller flags
2013 ACCF/AHA heart-failure stages (Yancy) from four caller flags: high risk for HF, structural heart disease, prior or current HF symptoms, and refractory specialized care. Returns hf_stage A, B, C, D, or not_staged. Progressive and inviolate: D first, then C, B, A, else not_staged. Not NYHA class and not a diagnosis. magent does not examine the patient or read an echocardiogram.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
292 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/acc_aha_hf
| 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 | $0.007 | 292 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"hf_symptoms_prior_or_current": false,
"high_risk_for_hf": false,
"refractory_hf_specialized": false,
"structural_heart_disease": false
},
{
"hf_symptoms_prior_or_current": false,
"high_risk_for_hf": false,
"refractory_hf_specialized": false,
"structural_heart_disease": false
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"hf_symptoms_prior_or_current": {
"description": "Prior or current symptoms of HF as assigned by the caller (Yancy 2013 stage C). true or false. magent does not examine the patient.",
"type": "boolean"
},
"high_risk_for_hf": {
"description": "High risk for HF without structural heart disease or HF symptoms (Yancy 2013 stage A assignment). true or false as assigned by the caller. magent does not examine the patient.",
"type": "boolean"
},
"refractory_hf_specialized": {
"description": "Refractory HF requiring specialized interventions as assigned by the caller (Yancy 2013 stage D). true or false. magent does not examine the patient.",
"type": "boolean"
},
"structural_heart_disease": {
"description": "Structural heart disease as assigned by the caller (Yancy 2013 stage B or C). true or false. magent does not read an echocardiogram.",
"type": "boolean"
}
},
"required": [
"high_risk_for_hf",
"structural_heart_disease",
"hf_symptoms_prior_or_current",
"refractory_hf_specialized"
],
"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"
}