# magent Edmonton Obesity Staging System (EOSS) Stage Lookup

> magent Edmonton Obesity Staging System (EOSS) Stage Lookup 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).

Returns the published Sharma 2009 EOSS clinical-picture wording for a caller-assigned obesity staging system stage (0–4).

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/eoss
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/magent-edmonton-obesity-staging-system-eoss-stage-lookup-362a975c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G5wTXDlcJtGKuvV3Pfz-H

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-edmonton-obesity-staging-system-eoss-stage-lookup-362a975c
```

Example prompt: Look up the published Sharma 2009 EOSS clinical-picture wording for stage 2 on the Edmonton Obesity Staging System.

## When to prefer this

Use this endpoint when you already have a clinician-assigned EOSS stage (0–4) and need the published Sharma 2009 clinical-picture wording for documentation, display, or enrichment. Do not use this to compute or derive a stage from BMI, lab values, or domain scores — the caller must supply the stage. Prefer this over manual lookup or hard-coded strings to ensure accuracy against the published source.

## Known failure modes

- Stage value outside 0–4 (e.g. 5, -1) is rejected — returns an error
- Non-integer stage value is rejected
- Missing required eoss_stage query parameter causes a 400-level error
- Network or server error returns a 5xx response

## How this service works

Sharma 2009 Edmonton Obesity Staging System (EOSS). Caller-assigned stage 0-4 with the published clinical-picture wording. magent does not assign stage from BMI or from separate medical, functional, or psychological domain scores. Not WHO BMI class. Not a diagnosis. Not a surgical-eligibility gate. magent does not examine the patient. Not a medical device.

## Output

Returns the published Sharma 2009 Edmonton Obesity Staging System clinical-picture wording corresponding to the submitted stage integer (0–4), exactly as defined in the original literature. Does not compute or assign a stage; does not return a diagnosis, surgical eligibility decision, or WHO BMI classification.

## 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": [
      "eoss_stage"
     ],
     "properties": {
      "eoss_stage": {
       "type": "integer",
       "description": "Sharma 2009 Edmonton Obesity Staging System stage 0-4 as assigned by the caller (0 no apparent obesity-related risk factors, no physical symptoms, no psychopathology, no functional limitations and/or impairment of well being; 1 obesity-related subclinical risk factor(s) OR mild physical symptoms OR mild psychopathology / mild functional limitations / mild impairment of well being; 2 established obesity-related chronic disease(s) OR moderate limitations in activities of daily living and/or well being; 3 established end-organ damage OR significant psychopathology OR significant functional limitation(s) and/or impairment of well being; 4 severe (potentially end-stage) disability/ies from obesity-related chronic diseases, severe disabling psychopathology, severe functional limitation(s) and/or severe impairment of well being). Integer 0-4 only; reject 5, -1, and non-integers. magent does not assign stage from BMI or from separate medical/functional/psychological domain scores. Not WHO BMI class. magent does not examine the patient."
      }
     }
    }
   },
   "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/magent-edmonton-obesity-staging-system-eoss-stage-lookup-362a975c/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)