# Đèn Hạ Chí auth.md

## Audience

Software agents acting for a person who wants information from, or a call-back or booking with, Đèn Hạ Chí.

## Registration

None. There is nothing to register and no credential to obtain.

## Supported methods

- Anonymous: every read endpoint (pages, `.md` versions, llms.txt, pricing.md, openapi.json, the MCP server at /mcp) is public.
- Write endpoints (`POST /api/lead`, `POST /api/booking`, MCP tools `submit_contact_request` and `request_booking`) are anonymous and rate limited to 5 requests per hour per IP. They require explicit consent from the person, sent as `consent`.

## Credential use

No tokens, keys or cookies are used. Do not send credentials to this site.

## Contact

xinchao@denhachi.demo · 0900 000 002