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Magent Reticulocyte Index Calculator
x402
Magent Reticulocyte Index Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Calculates corrected reticulocyte count (CRC), Hillman 1969 maturation-shift reticulocyte index (RI), and optionally absolute reticulocyte count (ARC) from retic%, hematocrit, and optionally RBC count.
Price / call$0.005
Success—
StatusUnknown
How this service works
Corrected reticulocyte count (retic% × Hct/45), Hillman 1969 maturation-shift reticulocyte index, and optional absolute reticulocyte count. Deterministic published arithmetic with citation; not a marrow diagnosis.
Output
Returns the corrected reticulocyte count (retic% × Hct/45), the Hillman 1969 maturation-shift reticulocyte index using discretized maturation days (1.0 at Hct ≥40%, 1.5 at ≥30%, 2.0 at ≥20%, 2.5 below 20%), and optionally the absolute reticulocyte count per µL when RBC is provided. Includes the cited formula and interpretive context.
Example use cases
Anemia workup in clinic
“I'm evaluating a patient with anemia — their retic is 1.8%, hematocrit is 25%, and RBC is 2.8 million/µL. Can you calculate the corrected retic count and reticulocyte index to help me figure out if the marrow is responding appropriately?”
EMR automation for hematology reports
“For a patient with reticulocyte percent 3.5% and hematocrit 32%, compute the CRC and Hillman 1969 reticulocyte index so I can auto-populate the hematology consult note.”
Checking hypoproliferative vs hyperproliferative anemia
“My patient's retic percent is 0.8% and their hematocrit is 20% — what's the corrected reticulocyte count and reticulocyte index? I need to know if this looks hypoproliferative.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/reticulocyte_indexWhen to prefer
Use this endpoint when you need a deterministic, citation-backed computation of the corrected reticulocyte count and Hillman maturation-shift reticulocyte index — especially in automated clinical documentation, EMR enrichment, or anemia classification workflows. Prefer over general LLM-based calculation when reproducibility and published arithmetic with citation are required.
Side effects
- Reticulocyte percent out of range (0.1–30) returns validation error
- Hematocrit out of range (10–70) returns validation error
- RBC out of range (1.0–8.0 million/µL) when provided returns validation error
- Missing required parameters (reticulocyte_percent or hematocrit_percent) returns 400 error
- Payment header missing or insufficient USDC triggers 402 payment required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/reticulocyte_index",
"count": 2,
"items": [
{
"formula": "reticulocyte_index",
"citation": {
"id": "hillman-1969",
"doi": "10.1172/JCI106002",
"title": "Characteristics of marrow production and reticulocyte maturation in normal man in response to anemia",
"source": "J Clin Invest. 1969;48(3):443-453",
"authors": "Hillman RS"
},
"arc_per_ul": 100000,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"maturation_days": 1,
"formula_expression": "CRC = reticulocyte_percent * (hematocrit_percent / 45); RI = CRC / maturation_days; ARC_per_uL = reticulocyte_percent/100 * rbc_million_ul * 1e6 when RBC is given",
"hematocrit_percent": 45,
"reticulocyte_index": 2,
"reticulocyte_percent": 2,
"corrected_reticulocyte_percent": 2
},
{
"formula": "reticulocyte_index",
"citation": {
"id": "hillman-1969",
"doi": "10.1172/JCI106002",
"title": "Characteristics of marrow production and reticulocyte maturation in normal man in response to anemia",
"source": "J Clin Invest. 1969;48(3):443-453",
"authors": "Hillman RS"
},
"arc_per_ul": 100000,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"maturation_days": 1,
"formula_expression": "CRC = reticulocyte_percent * (hematocrit_percent / 45); RI = CRC / maturation_days; ARC_per_uL = reticulocyte_percent/100 * rbc_million_ul * 1e6 when RBC is given",
"hematocrit_percent": 45,
"reticulocyte_index": 2,
"reticulocyte_percent": 2,
"corrected_reticulocyte_percent": 2
}
]
}
}Tags
x402
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