# agentreadiness.halowerk.com Main Semantics Audit

> agentreadiness.halowerk.com Main Semantics Audit is a paid API for AI agents from agentreadiness.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-14).

Passively fetches and evaluates the semantic markup and structured-data quality of a public URL, returning a verdict, evidence, threshold, and recommended action for agent-readiness compliance.

## Facts

- Endpoint: POST https://agentreadiness.halowerk.com/v1/main-semantics-audit?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentreadiness-halowerk-com-main-semantics-audit-613e356c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y9mFGGz4aGMdKS6Ys_i-n

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 agentreadiness-halowerk-com-main-semantics-audit-613e356c -d '<json body>'
```

Example prompt: Can you run a main semantics audit on https://example.com and tell me whether its semantic markup meets agent-readiness standards, with the evidence and any recommended actions?

## When to prefer this

Choose this endpoint when you need a passive, read-only semantic audit of the main structured-data and HTML semantics of a public URL, specifically for AI agent-readiness evaluation. Prefer it over general SEO tools when you need a machine-actionable verdict with explicit evidence sourcing and agent-compatibility framing. Use sibling endpoints for header semantics, content licensing, or bot-specific access checks.

## Known failure modes

- Target URL is unreachable or returns a non-200 status, resulting in no evidence and an inconclusive verdict
- Malformed or non-HTTP URL causes a validation error before any fetch is attempted
- Target site blocks automated crawlers, yielding limited or empty evidence
- Very large or complex pages may result in partial evidence collection with noted limitations
- Baseline object format mismatch prevents change comparison from completing

## How this service works

Main semantics 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 result containing the observation (what was found), the evaluated criterion threshold, a pass/fail/warn verdict, the exact evidence source URL or element, limitations of the passive check, and a mode-specific recommended action — all scoped to the main semantic markup of the target.

## 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/agentreadiness-halowerk-com-main-semantics-audit-613e356c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentreadiness.halowerk.com](https://www.zero.xyz/host/agentreadiness.halowerk.com/llms.txt)