MCP tool
check_llms_txt
Inspect a domain's published /llms.txt and /llms-full.txt for links and install instructions an AI agent could inherit from someone else.
The check_llms_txt tool is provided by BlackVeil DNS & Email Security Scanner. Install that server in your AI client and the assistant can call it directly.
Servers exposing check_llms_txt
From the publisher:Inspect a domain's published /llms.txt and /llms-full.txt for links and install instructions an AI agent could inherit from someone else. Parses and dedupes the links (same-origin vs external), sweeps external link hosts for dangling CNAMEs and deprovisioned-service fingerprints (evidence of a dangling service, not proof it can be claimed), and checks package names in npm/npx/pnpm/yarn/pip/uv/pipx
Install BlackVeil DNS & Email Security Scanner →Parameter Type Description domain*string Domain to check (e.g., example.com) force_refreshboolean Bypass cache and run a fresh check. Useful after DNS changes. formatstring Output verbosity. Auto-detected if omitted.
Tool lists are read from the live servers (or, for packaged servers, from their documentation) each morning, so this reflects what they exposed at the last refresh. Search all tools.