Rao 2021 natriuretic response prediction equation from caller-assigned eGFR and
Rao 2021 natriuretic response prediction equation from caller-assigned eGFR and BSA, serum and urine creatinine, and urine sodium on a spot sample ~2 h after IV loop diuretic. Na_output_mmol = eGFR*(BSA/1.73)*(SerumCr/UrineCr)*60*3.25*(UrineNa/1000). Poor <50 mmol; suboptimal <100 mmol (includes poor); excellent >150 mmol. magent does not compute eGFR or BSA and does not order a diuretic.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
268 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/nrpe
| 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 | $0.007 | 268 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"bsa_m2": 1.73,
"creatinine_mg_dl": 1,
"creatinine_umol_l": 88.42,
"egfr_ml_min_1_73m2": 80,
"urine_creatinine_mg_dl": 25,
"urine_creatinine_umol_l": 2210.5,
"urine_sodium_mmol_l": 90
},
{
"bsa_m2": 1.73,
"creatinine_mg_dl": 1,
"creatinine_umol_l": 88.42,
"egfr_ml_min_1_73m2": 80,
"urine_creatinine_mg_dl": 25,
"urine_creatinine_umol_l": 2210.5,
"urine_sodium_mmol_l": 90
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"bsa_m2": {
"description": "Caller-assigned body surface area in m\u00b2 (0.4-3.5). Paper used Du Bois. magent does not compute BSA.",
"type": "number"
},
"creatinine_mg_dl": {
"description": "Serum creatinine in mg/dL (0.1-20). Provide this or creatinine_umol_l, not both.",
"type": "number"
},
"creatinine_umol_l": {
"description": "Serum creatinine in \u00b5mol/L (9-1768). Converted as mg/dL = \u00b5mol/L / 88.42. Provide this or creatinine_mg_dl, not both.",
"type": "number"
},
"egfr_ml_min_1_73m2": {
"description": "Caller-assigned eGFR in mL/min/1.73m\u00b2 (5-200). magent does not compute CKD-EPI (including race-based 2009 CKD-EPI).",
"type": "number"
},
"urine_creatinine_mg_dl": {
"description": "Urine creatinine in mg/dL (1-500). Provide this or urine_creatinine_umol_l, not both.",
"type": "number"
},
"urine_creatinine_umol_l": {
"description": "Urine creatinine in \u00b5mol/L (88-44210). Converted as mg/dL = \u00b5mol/L / 88.42. Provide this or urine_creatinine_mg_dl, not both.",
"type": "number"
},
"urine_sodium_mmol_l": {
"description": "Spot urine sodium in mmol/L (1-300), ~2 h after IV loop diuretic.",
"type": "number"
}
},
"required": [
"egfr_ml_min_1_73m2",
"bsa_m2",
"urine_sodium_mmol_l"
],
"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"
}