Who it is for
Someone deciding between Bathhouse treatments or times before committing to a reservation.
Overview
Bathhouse, built by Bonsai, brings the spa's sites and services into ChatGPT. Available experiences can be listed, details for a specific treatment read, and appointment times checked for a given date and location. Location details are available before any date is picked.
The flow stops short of a confirmed reservation. Options can be compared and a slot identified in chat, but the final step moves to Bathhouse's own booking system. Sample requests include finding locations, reading the details of a full body massage, or looking for an evening appointment at Williamsburg on a particular date.
Someone deciding between Bathhouse treatments or times before committing to a reservation.
It carries a booking as far as chat can take it, then hands the reservation to Bathhouse's own system.
Availability
Bathhouse is listed in the ChatGPT apps directory only. Bonsai has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
Nearby
Browse Myo locations, services and appointment times
ChatGPT
Guided breathing sessions inside the chat
ChatGPT
Drug pipeline and clinical trial intelligence from AdisInsight
Claude
AI coaching for running, cycling and triathlon
ChatGPT
Query histopathology slides through Owkin's HistoPLUS agent
Claude
Harmonised US disease surveillance signals from Yale public health
Claude
This is an independent catalogue entry compiled by Node8 from Bathhouse's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Bonsai, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.