Grogan 2016 ATTRwt staging
Grogan 2016 ATTRwt staging: 1 point when NT-proBNP >3000 ng/L; 1 point when cardiac TnT >0.05 ng/mL. Stage I = 0, II = 1, III = 2. Equal to a cutoff does not score. Cohort 4-year OS I 57% / II 42% / III 18%; stage III median 20 months (labels, not a prediction). Troponin T only. Not Gillmore NAC (no eGFR). Not Mayo AL. Not NYHA. magent does not assay the biomarkers.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
256 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/grogan
| 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 | $0.007 | 256 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"nt_probnp_ng_l": 1500,
"troponin_t_ng_ml": 0.02
},
{
"nt_probnp_ng_l": 1500,
"troponin_t_ng_ml": 0.02
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"nt_probnp_ng_l": {
"description": "NT-proBNP in ng/L (10-100000), same numeric value as pg/mL. Grogan 2016 scores 1 point when > 3000; equal to 3000 does not score. magent does not assay NT-proBNP.",
"type": "number"
},
"troponin_t_ng_ml": {
"description": "Cardiac troponin T (cTnT) in ng/mL (0.001-50), same numeric value as 0.05 \u03bcg/L. Grogan 2016 scores 1 point when > 0.05; equal to 0.05 does not score. Troponin T only; magent does not invent a troponin I cutoff and does not assay troponin.",
"type": "number"
}
},
"required": [
"nt_probnp_ng_l",
"troponin_t_ng_ml"
],
"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"
}