access_check_url
Check whether an agent may fetch a URL
Says whether an AI agent may fetch a URL, on what terms, and at what price. Reads robots.txt for a generic agent and for every AI user-agent the operators document, the Content-signal and Content-Usage directives, any RSL licence the origin links, and the live response to an honestly-identified request. Verdicts: `allowed` (it served us), `allowed_if_identified` (the written policy permits this but bot management refused an anonymous request — signing as a named crawler is the documented route), `charged` (there is a price, quoted where the rail will show one), `blocked` (the site disallows the agents that would want this, with nothing to buy), and `unknown` (the origin did not answer, or the URL is not there). Never evades: no CAPTCHA solving, no proxies, no spoofed user-agents. Refusals come back as findings with the evidence attached.
url必填skipWellKnownincludeEvidence