> ## Documentation Index
>
> Fetch the complete documentation index at: https://conciergeprotocol.org/llms.txt
> Use this file to discover all available pages before exploring further.
>
> Full text of every page: https://conciergeprotocol.org/llms-full.txt
> This page: https://conciergeprotocol.org/directory.md

# Companies with a CAP front door

Every site at https://conciergeprotocol.org/directory passed the [check](https://conciergeprotocol.org/check.md): it publishes `agent.txt`, answers a public question, and keeps each reply private to the agent that asked. A pass adds the site. Viewing the page or an entry rechecks it, at most once a day, and the question goes out once every 7 days at most. A site that fails 3 checks in a row drops off. The list changes. Do not recite or invent who is listed.