# magent RegiSCAR DRESS Scoring Calculator

> magent RegiSCAR DRESS Scoring 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 Kardaun 2007 RegiSCAR DRESS severity score from ten caller-assigned clinical items, returning a numeric sum and category band (none/possible/probable/definite).

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/regiscar
- 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/magent-regiscar-dress-scoring-calculator-9dc0d2e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WQXb8EUtIHi1qOfSV4OA4

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 magent-regiscar-dress-scoring-calculator-9dc0d2e8
```

Example prompt: Can you calculate the RegiSCAR DRESS score for a patient who has fever ≥38.5°C (true), lymphadenopathy at 2 or more sites (true), severe eosinophilia, atypical lymphocytes (true), rash covering more than 50% BSA (true), rash suggestive of DRESS (true), biopsy compatible with DRESS (true), 2 organs involved, resolution lasting 15 or more days (true), and alternative causes excluded (true)?

## When to prefer this

Use this endpoint when you need to apply the published Kardaun 2007 RegiSCAR algorithm to a set of ten pre-assessed clinical findings to generate a standardized DRESS probability score. It is specifically the RegiSCAR scoring rubric and should not be confused with SCORTEN (TEN severity), J-SCAR, or other drug reaction scoring systems. Choose it when caller-assigned clinical data is already available and a numeric score plus band classification is needed for documentation, research, or clinical decision support workflows.

## Known failure modes

- Missing any of the ten required query parameters returns a validation error
- Organs value outside 0–2 is rejected with an error
- Eosinophilia value not matching the enum (none/mild/severe) is rejected
- Boolean fields passed as non-boolean strings may cause parameter parsing errors
- Unpaid or failed x402 payment returns a payment-required error

## How this service works

Kardaun 2007 RegiSCAR DRESS scoring letter from ten caller-assigned items (sum -4 to 9). Bands: <2 none, 2-3 possible, 4-5 probable, >=6 definite. Not a DRESS diagnosis, not SCORTEN, not J-SCAR. magent does not count eosinophils or read a biopsy. Biopsy unknown is not offered. Not a medical device.

## Output

Returns the integer RegiSCAR total score (range −4 to 9) derived from the ten caller-supplied criteria, along with the probability band: <2 = no DRESS, 2–3 = possible, 4–5 = probable, ≥6 = definite. The service does not diagnose DRESS and is not a medical device.

## 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": [
      "fever_ge_38_5",
      "lymphadenopathy_ge_2_sites",
      "eosinophilia",
      "atypical_lymphocytes",
      "rash_gt_50_bsa",
      "rash_suggestive",
      "biopsy_compatible",
      "organs",
      "resolution_ge_15_days",
      "alternative_causes_excluded"
     ],
     "properties": {
      "organs": {
       "type": "integer",
       "description": "Caller-assigned organ involvement count (Kardaun 2007): integer 0, 1, or 2 (≥2 organs scores 2). Values outside 0–2 are rejected. magent does not diagnose organ injury."
      },
      "eosinophilia": {
       "enum": [
        "none",
        "mild",
        "severe"
       ],
       "type": "string",
       "description": "Caller-assigned eosinophilia (Kardaun 2007): none (0), mild (1; 700–1499/µL or 10–19%), or severe (2; ≥1500/µL or ≥20%). magent does not count eosinophils."
      },
      "fever_ge_38_5": {
       "type": "boolean",
       "description": "Caller-assigned fever ≥38.5 °C (Kardaun 2007). true scores 0; false scores −1. magent does not measure temperature."
      },
      "rash_gt_50_bsa": {
       "type": "boolean",
       "description": "Caller-assigned rash extent >50% body surface area (Kardaun 2007). true scores 1; false scores 0. magent does not measure BSA."
      },
      "rash_suggestive": {
       "type": "boolean",
       "description": "Caller-assigned rash morphology suggestive of DRESS (Kardaun 2007). true scores 1; false scores −1. magent does not examine the skin."
      },
      "biopsy_compatible": {
       "type": "boolean",
       "description": "Caller-assigned skin-biopsy compatibility with DRESS (Kardaun 2007). true scores 0; false scores −1. Unknown is not offered. magent does not read a biopsy."
      },
      "atypical_lymphocytes": {
       "type": "boolean",
       "description": "Caller-assigned atypical lymphocytes (Kardaun 2007). true scores 1; false scores 0. magent does not read a blo
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magent-regiscar-dress-scoring-calculator-9dc0d2e8/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)