# Halowerk Add-to-Cart Audit

> Halowerk Add-to-Cart Audit is a paid API for AI agents from conversion.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-02).

Passively audits a public product page or e-commerce URL to evaluate the add-to-cart experience against documented conversion criteria, returning an observation, verdict, evidence, and recommended action.

## Facts

- Endpoint: POST https://conversion.halowerk.com/v1/add-to-cart-audit?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-add-to-cart-audit-24ddf2de
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RAPGuXRc-lPVdKvgGix3t

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 halowerk-add-to-cart-audit-24ddf2de -d '<json body>'
```

Example prompt: Can you run a passive add-to-cart audit on https://shop.example.com/products/blue-sneakers and tell me whether the add-to-cart experience meets conversion standards — include the verdict, the evidence you found, and what I should fix?

## When to prefer this

Choose this endpoint when you need a lightweight, passive, read-only verdict on whether a public product page's add-to-cart experience meets conversion criteria — without logging in, injecting payloads, or performing load tests. It is ideal for quick spot-checks, competitive benchmarking, or monitoring for regressions after page redesigns. Prefer alternatives if you need authenticated audits, full site crawls, or performance load testing.

## Known failure modes

- Target URL is unreachable or returns non-200 status, causing audit failure
- Private or login-gated pages cannot be inspected since no authentication is attempted
- Dynamically rendered add-to-cart buttons may not be visible to a passive crawl
- Invalid or malformed target URL returns a validation error
- Rate limiting or bot-blocking on the target site may prevent evidence collection
- Comparison URL mismatch with target domain may produce inconclusive change results

## How this service works

Add-to-cart action audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

## Output

Returns a structured audit result containing: the observation (what was found on the page), the criterion threshold being evaluated, a pass/fail verdict, the exact evidence source URL, any limitations of the passive check, and a mode-specific recommended action for improvement.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "target": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 3,
   "description": "Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS."
  },
  "context": {
   "type": "object",
   "description": "Optional non-secret correlation labels returned unchanged only in the request lifecycle.",
   "maxProperties": 12,
   "additionalProperties": {
    "type": [
     "string",
     "number",
     "boolean",
     "null"
    ]
   }
  },
  "baseline": {
   "type": [
    "object",
    "null"
   ],
   "description": "Optional baseline returned by a previous snapshot call.",
   "additionalProperties": true
  },
  "compare_url": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 3,
   "description": "Optional public comparison URL. Used by change and monitoring services."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-add-to-cart-audit-24ddf2de/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from conversion.halowerk.com](https://www.zero.xyz/host/conversion.halowerk.com/llms.txt)