IDMS 4-variable MDRD eGFR (Levey 2006) from standardized creatinine, adult age,
IDMS 4-variable MDRD eGFR (Levey 2006) from standardized creatinine, adult age, sex, and caller-assigned Black. magent does not assign race. Deterministic published formula with citation; not CKD-EPI 2021 and not a dosing recommendation.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
265 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/mdrd
| 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 | $0.007 | 265 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"age": 65,
"black": false,
"creatinine_mg_dl": 1.1,
"creatinine_umol_l": 97.262,
"sex": "female"
},
{
"age": 65,
"black": false,
"creatinine_mg_dl": 1.1,
"creatinine_umol_l": 97.262,
"sex": "female"
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$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). MDRD is for adults.",
"type": "integer"
},
"black": {
"description": "Caller-assigned Black as used in Levey 2006; magent does not assign race. true applies 1.212.",
"type": "boolean"
},
"creatinine_mg_dl": {
"description": "Serum creatinine in mg/dL (0.1-20). Provide this or creatinine_umol_l.",
"type": "number"
},
"creatinine_umol_l": {
"description": "Serum creatinine in \u00b5mol/L. Converted as mg/dL = \u00b5mol/L / 88.42. IDMS-traceable standardized creatinine as in Levey 2006.",
"type": "number"
},
"sex": {
"description": "Sex used by the published equation. female applies 0.742; male does not.",
"enum": [
"female",
"male"
],
"type": "string"
}
},
"required": [
"age",
"sex",
"black"
],
"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"
}