# magent COPD Assessment Test (CAT) Calculator

> magent COPD Assessment Test (CAT) 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 Jones 2009 COPD Assessment Test (CAT) total score (0–40) from eight caller-supplied symptom integers

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/cat
- 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-copd-assessment-test-cat-calculator-cde96c56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EHDFgPDa0D6jMq4Bdd455

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-copd-assessment-test-cat-calculator-cde96c56
```

Example prompt: Calculate the Jones 2009 CAT score for a COPD patient with cough 3, phlegm 2, chest tightness 2, breathlessness 4, activities 3, confidence 2, sleep 2, and energy 3.

## When to prefer this

Use this endpoint when you need a fast, deterministic computation of the Jones 2009 CAT score from eight pre-collected integer symptom ratings and do not need GOLD staging, BODE index, or any diagnostic interpretation. Ideal for clinical workflows or apps where a human clinician or patient has already assigned the eight item scores and only the arithmetic sum is required.

## Known failure modes

- Missing required query parameter (any of the eight items) returns an error
- Integer values outside the 0–5 range per item may be rejected or produce an out-of-range total
- Non-integer values for symptom items will fail validation
- Network or payment-related failure (402 payment required if x402 token is absent or insufficient)

## How this service works

Jones 2009 COPD Assessment Test (CAT): eight caller-assigned integers 0-5 (cough, phlegm, chest tightness, breathlessness, activities, confidence, sleep, energy). Sum 0-40. magent does not interview. Jones 2009 printed no GOLD 0-10/11-20/21-30/31-40 impact bands; later website cutoffs are not applied. Not a diagnosis, not GOLD ABE, not BODE, and not a medical device.

## Output

Returns the CAT total score as an integer from 0 to 40, representing the sum of the eight caller-supplied Jones 2009 symptom item scores. Higher scores indicate greater COPD symptom burden. No impact band labels, GOLD staging, diagnosis, or medical advice is included.

## 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": [
      "cough",
      "phlegm",
      "chest_tightness",
      "breathlessness",
      "activities",
      "confidence",
      "sleep",
      "energy"
     ],
     "properties": {
      "cough": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT cough (integer 0-5): 0 I never cough to 5 I cough all the time. magent does not interview the patient."
      },
      "sleep": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT sleep (integer 0-5): 0 I sleep soundly to 5 I don't sleep soundly because of my lung condition. magent does not interview the patient."
      },
      "energy": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT energy (integer 0-5): 0 I have lots of energy to 5 I have no energy at all. magent does not interview the patient."
      },
      "phlegm": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT phlegm (integer 0-5): 0 I have no phlegm (mucus) in my chest at all to 5 my chest is completely full of phlegm (mucus). magent does not interview the patient."
      },
      "activities": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT activities (integer 0-5): 0 I am not limited doing any activities at home to 5 I am very limited doing activities at home. magent does not interview the patient."
      },
      "confidence": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT confidence (integer 0-5): 0 I am confident leaving my home despite my lung condition to 5 I am not at all confident leaving my home because of my lung condition. magent does not interview the patient."
      },
      "breathlessness": {
       "type": "integer",
       "description": "Caller-assigned Jones 2009 CAT breathlessness (integer 0-5): 0 when I walk up a hill or one flight of stairs I am not breathless to 5 when I wa
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magent-copd-assessment-test-cat-calculator-cde96c56/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)