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Halowerk AI Agent Access Checker
x402
Halowerk AI Agent Access Checker is a paid API for AI agents from tools.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Checks whether a given URL permits AI agent access by evaluating robots.txt for 23 named AI agents, X-Robots-Tag headers, meta tags, noai directives, paywalls, license references, terms of use, and TDM reservations via /.well-known/tdmrep.json.
Price / call$0.004
Success—
StatusUnknown
How this service works
Wertet robots.txt fuer 23 benannte KI-Agenten aus, mit korrekter Gruppenauswahl und der Regel, dass die laengste passende Anweisung gewinnt. Prueft zusaetzlich X-Robots-Tag, Meta-Angaben, noai, Bezahlschranken-Hinweise, Lizenzverweise, Nutzungsbedingungen und den TDM-Vorbehalt unter /.well-known/tdmrep.json.
Output
Returns a structured report covering: which of 23 named AI agents are permitted or blocked by robots.txt (using correct group selection and longest-match-wins rule), X-Robots-Tag header values, meta noai/noindex flags, paywall detection signals, license references found on the page, links to terms of use, and TDM reservation status from /.well-known/tdmrep.json.
Example use cases
Pre-scrape AI crawler compliance check
“Before my pipeline collects training data from https://news-site.com, check whether AI crawlers are permitted there — look at their robots.txt for known AI agents, any noai or X-Robots-Tag directives, and whether they've filed a TDM reservation.”
Content licensing audit for AI startup
“We're building a dataset from 50 sites — can you check https://blog.example.com to see if it allows AI data mining, has any license restrictions, a paywall, or has blocked AI agents like GPTBot or CCBot in its robots.txt?”
Agent access policy before agentic browsing
“My AI assistant is about to read and summarize pages from https://research-journal.org — first check whether that site permits AI agent access, including their TDM reservation, any noai meta tags, and whether they block agents like Anthropic-AI or PerplexityBot in robots.txt.”
Technical details
Endpoint
POSThttps://tools.halowerk.com/v1/agent/accessWhen to prefer
Use this endpoint when an AI agent needs to verify whether it is permitted to crawl, scrape, or train on content from a specific URL before doing so. It is specifically designed for AI agent compliance, covering 23 named AI crawlers with correct robots.txt group selection and longest-match-wins semantics — far more thorough than a generic robots.txt parser. Prefer it when you need TDM reservation checks, noai meta tag detection, and paywall signals bundled in a single call.
Side effects
- URL unreachable or returns non-2xx status — endpoint reports fetch error
- robots.txt absent — treated as fully permissive per standard
- TDM rep file missing — reported as no TDM reservation
- Malformed robots.txt — best-effort parsing with warnings
- Timeout on slow sites — may return partial results
- Paywalled robots.txt or redirect loops — fetch failure reported
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| path | string | Zu pruefender Pfad, zum Beispiel /blog/artikel-1 |
| domain | string | Domain oder URL |
Tags
x402
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