# The Whetstone Inn > A small country inn in the village of Marlboro, Vermont, kept by the same family since 1979. Eleven guest rooms; breakfast included. 550 South Road, Marlboro, Vermont 05344 · (802) 254-2500 · info@whetstoneinn.com The Whetstone Inn is a family-run bed and breakfast in Marlboro, Vermont. Breakfast is included with every room. Rates below are nightly base rates before Vermont's 9% + Marlboro's 1% Meals & Rooms Tax; exact totals depend on dates and party size and are returned by the availability API. ## Rooms & rates - [Room A](https://www.whetstoneinn.com/rooms/room-a): sleeps 2, from $195/night, bookable online. - [Room D](https://www.whetstoneinn.com/rooms/room-d): sleeps 4, from $195/night, bookable online. - [Room E](https://www.whetstoneinn.com/rooms/room-e): sleeps 2, from $200/night, bookable online. - [Room F](https://www.whetstoneinn.com/rooms/room-f): sleeps 2, from $195/night, bookable online. - [Room G](https://www.whetstoneinn.com/rooms/room-g): sleeps 2, from $165/night, bookable online. - [Room HB](https://www.whetstoneinn.com/rooms/room-hb): sleeps 2, from $195/night, bookable online. - [Room L](https://www.whetstoneinn.com/rooms/room-l): sleeps 2, from $215/night, bookable online. - [Room HB & H](https://www.whetstoneinn.com/rooms/hb-h): sleeps 4, from $295/night, bookable online. ## Booking - Check availability and rates for specific dates: [/reserve](https://www.whetstoneinn.com/reserve) - A deposit equal to the first night's lodging plus tax holds a reservation; the balance is settled at the stay. - Some rooms are booked by phone rather than online — those are marked above. ## For AI agents - **Live availability API (JSON, read-only, no auth):** `GET https://www.whetstoneinn.com/api/public/availability?check_in=YYYY-MM-DD&check_out=YYYY-MM-DD` returns the rooms open for those dates with per-stay pricing (subtotal, tax, total, deposit). `check_in` is inclusive, `check_out` exclusive. CORS is open and the endpoint is IP rate-limited. Call it with no dates for a usage document. Its answers match what [/reserve](https://www.whetstoneinn.com/reserve) shows. - **Machine-readable API description:** an OpenAPI 3.1 doc for the availability API is at [`https://www.whetstoneinn.com/api/public/availability/openapi.json`](https://www.whetstoneinn.com/api/public/availability/openapi.json), discoverable via the RFC 9727 catalog at [`https://www.whetstoneinn.com/.well-known/api-catalog`](https://www.whetstoneinn.com/.well-known/api-catalog). - **Booking handoff:** to send a guest off to book, link them to `https://www.whetstoneinn.com/reserve?check_in=YYYY-MM-DD&check_out=YYYY-MM-DD&adults=2&children=0&dog=true&room=` — the form opens with those dates and party filled in, availability already searched, and the named room listed first. The availability API returns this URL ready-made as `reserve_url` on each room. Pass search criteria only; never put a guest's name or email in the URL. - There is no public booking-write API. Agents should hand guests to [/reserve](https://www.whetstoneinn.com/reserve) as above. A request submitted there is held, not charged, until the innkeepers confirm it. ### Driving the /reserve flow in a browser The reserve page is built to be completed by an agent driving a normal browser (ChatGPT agent mode, Claude in Chrome, Comet). No CAPTCHA, no Cloudflare challenge, and no login stands in the path. The flow is four steps, all in one page: 1. **Dates & party.** Open the deep link above (dates already filled) so you skip the calendar entirely. If you must set dates by hand, the "Dates" control is a real button that opens a calendar of day buttons — each day is a `