eGFR (CKD-EPI 2021, race-free) API

Estimate glomerular filtration rate from serum creatinine via the race-free CKD-EPI 2021 creatinine equation, with the KDIGO G1-G5 CKD staging bucket. Answers 'what's my eGFR', 'kidney function from creatinine 1.0 age 50', 'CKD stage from eGFR', 'CKD-EPI 2021 calculator'.

Price$0.01per request

MethodPOST

Route/v1/health/egfr

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

healthegfrckd-epikidneycreatininerenalclinicalcalculator

API URLhttps://x402.hexl.dev/v1/health/egfr

Integration docs

Example request

{
  "creatinineMgDl": 1,
  "ageYears": 50,
  "sex": "male"
}

Example response

{
  "egfr": 91.7,
  "unit": "mL/min/1.73m^2",
  "stage": "G1 (normal)",
  "method": "CKD-EPI 2021 (race-free) creatinine equation",
  "sex": "male",
  "inputs": {
    "creatinineMgDl": 1,
    "ageYears": 50
  }
}

Input schema

{
  "type": "object",
  "required": [
    "creatinineMgDl",
    "ageYears",
    "sex"
  ],
  "properties": {
    "creatinineMgDl": {
      "type": "number",
      "description": "Serum creatinine in mg/dL",
      "examples": [
        1
      ]
    },
    "ageYears": {
      "type": "number",
      "examples": [
        50
      ]
    },
    "sex": {
      "type": "string",
      "enum": [
        "male",
        "female"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}