# Greenes 2001 Infant Scalp Score Calculator

> Greenes 2001 Infant Scalp Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Computes the Greenes 2001 infant scalp score (0–8) from age in months, hematoma size, and hematoma location for infants 0–24 months

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/infant_scalp
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/greenes-2001-infant-scalp-score-calculator-54af31c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jjr0B5G71G7Jf4B5caF8B

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability greenes-2001-infant-scalp-score-calculator-54af31c3
```

Example prompt: Using the Greenes 2001 infant scalp scoring rule, calculate the score for a 4-month-old with a large temporal/parietal hematoma — age is 4 months, hematoma size is large (3), hematoma location is temporal/parietal (2).

## When to prefer this

Choose this endpoint when you need a deterministic, rule-based numeric computation of the Greenes 2001 infant scalp score for infants 0–24 months — particularly in clinical documentation workflows or agentic pipelines that need a fast, auditable scoring step before a clinician interprets results. Not appropriate if you need CT recommendation logic, PECARN rules, or scoring for children older than 24 months.

## Known failure modes

- age_months outside 0–24 range returns an error or undefined behavior
- hematoma_size not in 0–3 integer range returns validation error
- hematoma_location not in 0–2 integer range returns validation error
- non-integer inputs rejected by schema
- missing required query parameters returns HTTP 400

## How this service works

Greenes 2001 infant scalp score: age points (0-2 months → 3; 3-5 → 2; 6-11 → 1; 12-24 months → 0) plus caller-assigned hematoma size (0 none, 1 small, 2 medium, 3 large) and location (0 frontal, 1 occipital, 2 temporal/parietal). Total 0-8. magent does not examine the scalp, measure the hematoma, or decide CT. Does not apply later ≥4 clinically important TBI cuts.

## Output

Returns the computed Greenes 2001 infant scalp score integer (0–8) derived from age-based points plus caller-assigned hematoma size and location points. Does not recommend CT, classify injury severity beyond the numeric score, or apply later ≥4 clinically important TBI thresholds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "age_months",
      "hematoma_size",
      "hematoma_location"
     ],
     "properties": {
      "age_months": {
       "type": "integer",
       "description": "Age in completed months, integer 0-24 as in Greenes 2001 (infants 0-24 months). Points: 0-2 months → 3; 3-5 → 2; 6-11 → 1; ≥12 → 0. magent does not convert years or days."
      },
      "hematoma_size": {
       "type": "integer",
       "description": "Caller-assigned hematoma size points 0-3 (0 none, 1 small, 2 medium, 3 large). magent does not measure the hematoma or invent centimeter cuts."
      },
      "hematoma_location": {
       "type": "integer",
       "description": "Caller-assigned hematoma location points (0 frontal, 1 occipital, 2 temporal/parietal). magent does not examine the scalp."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/greenes-2001-infant-scalp-score-calculator-54af31c3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.magentlab.com](https://www.zero.xyz/host/api.magentlab.com/llms.txt)