# AHA/ACC 2018 Very High-Risk ASCVD Classifier (Table 4)

> AHA/ACC 2018 Very High-Risk ASCVD Classifier (Table 4) 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).

Classifies a patient as very high-risk for ASCVD per AHA/ACC 2018 Table 4 criteria based on major events and high-risk conditions

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/ascvd_vhr
- 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/aha-acc-2018-very-high-risk-ascvd-classifier-table-4-cb526d78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5LjYNksAGqwkxyF_3GtbI

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 aha-acc-2018-very-high-risk-ascvd-classifier-table-4-cb526d78
```

Example prompt: Does my 68-year-old patient with a recent ACS 6 months ago, a prior MI, diabetes, and hypertension qualify as very high-risk ASCVD under the AHA/ACC 2018 Table 4 criteria? No FH, no CABG or PCI outside those events, not currently smoking, no CKD, LDL under 100, no congestive HF.

## When to prefer this

Use this endpoint when you need to apply the exact AHA/ACC 2018 Table 4 very high-risk ASCVD criteria for a patient with known clinical ASCVD, particularly to guide secondary prevention intensity or PCSK9 inhibitor eligibility. Prefer this over PCE-based calculators (which are for primary prevention) or general risk scores when the patient already has established ASCVD and you need to distinguish very high-risk from high-risk for guideline-directed therapy decisions.

## Known failure modes

- Missing required query parameters (age, any of the boolean flags) returns a 400 or validation error
- Non-integer age or out-of-range values may cause rejection
- Boolean fields passed as non-boolean strings may fail validation
- Misinterpretation of endpoint scope: it does not diagnose conditions, measure labs, or compute PCE risk — callers must pre-assign all clinical values

## How this service works

AHA/ACC 2018 Table 4 very high-risk ASCVD for known clinical ASCVD. Very high-risk if ≥2 major events (recent ACS, prior MI, ischemic stroke, symptomatic PAD) or 1 major event and ≥2 high-risk conditions (age ≥65, heterozygous FH, CABG/PCI outside those events, diabetes, hypertension, CKD eGFR 15-59, current smoking, LDL-C ≥100 on max statin and ezetimibe, congestive HF). Not PCE. Not a statin, ezetimibe, or PCSK9 order. magent does not diagnose ASCVD or measure ABI or LDL-C.

## Output

Returns a boolean or structured classification indicating whether the patient meets AHA/ACC 2018 Table 4 very high-risk ASCVD criteria, based on the count of qualifying major ASCVD events and high-risk conditions supplied by the caller

## 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",
      "recent_acs",
      "history_mi",
      "ischemic_stroke",
      "symptomatic_pad",
      "heterozygous_fh",
      "prior_cabg_or_pci_outside_major",
      "diabetes",
      "hypertension",
      "ckd_egfr_15_to_59",
      "current_smoking",
      "ldl_c_ge_100_on_max_statin_ezetimibe",
      "congestive_hf"
     ],
     "properties": {
      "age": {
       "type": "integer",
       "description": "Age in years (18-120). ≥65 is an AHA/ACC 2018 Table 4 high-risk condition. magent does not assign age."
      },
      "diabetes": {
       "type": "boolean",
       "description": "Diabetes mellitus as assigned by the caller (AHA/ACC 2018 Table 4 high-risk condition). true or false. magent does not diagnose diabetes."
      },
      "history_mi": {
       "type": "boolean",
       "description": "History of MI other than a caller-assigned recent ACS as assigned by the caller (AHA/ACC 2018 Table 4 major ASCVD event). true or false. magent does not diagnose MI."
      },
      "recent_acs": {
       "type": "boolean",
       "description": "Recent ACS within the past 12 months as assigned by the caller (AHA/ACC 2018 Table 4 major ASCVD event). true or false. magent does not date ACS."
      },
      "hypertension": {
       "type": "boolean",
       "description": "Hypertension as assigned by the caller (AHA/ACC 2018 Table 4 high-risk condition). true or false. magent does not measure blood pressure."
      },
      "congestive_hf": {
       "type": "boolean",
       "description": "History of congestive HF as assigned by the caller (AHA/ACC 2018 Table 4 high-risk condition). true or false. magent does not diagnose HF."
      },
      "current_smoking": {
       "type": "boolean",
       "description": "Current smoking as assigned by the caller (AHA/ACC 2018 Table 4 high-risk condition). true or false. magent does not assign smoking status."
      },
      "heterozygous_fh": {
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aha-acc-2018-very-high-risk-ascvd-classifier-table-4-cb526d78/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)