G-Guest · for people with an assistant
Book with your AI assistant
Venues on G-Guest can be booked by an AI assistant directly: it checks real availability and creates a confirmed booking. No marketplace in the middle, no commission on the booking, and the venue keeps the guest.
A website made a business clickable. This makes it callable: an endpoint where an assistant can ask what a venue offers, when it is free and what it costs, and then act on the answer.
What works today
We only list what we have tested ourselves.
Custom agents (OpenClaw, Hermes and others)
Work straight against the endpoint: nothing to install, nothing to configure. OpenClaw and Hermes have both created confirmed bookings here. Hermes was the first assistant ever to book on G-Guest.
Codex
Works without any extra setup and has created confirmed bookings here.
Claude
Books the same way in its agent form: no connector needed, and it has created confirmed bookings here. In the Claude app you can also add G-Guest as a connector.
ChatGPT
Available through the connector today (developer mode). Tested 28 August 2026: found the venue, checked availability, created a confirmed booking.
ChatGPT Native
Coming.
AI booking is enabled for compatible AI assistants. Broader ChatGPT availability expands as app capabilities roll out.
Try it in five minutes (ChatGPT)
- 1
In ChatGPT open Settings → Apps & Connectors → Advanced settings and turn on Developer mode.
- 2
Back in Connectors choose Create, then fill in:
Name G-Guest
MCP Server URL https://g-guest.app/api/mcp
Authentication No authentication
Confirm and create.
- 3
Open a new chat, enable the G-Guest connector in the tools menu, and ask it plainly:
Use the G-Guest connector: find the demo venue and book a table for two tomorrow at 19:00. My name is …, email …, phone …
You get a confirmation back, with a link to manage the booking. That booking is real, on a demo venue we keep open for exactly this.
Claude: add the same URL as a connector, no authentication, then ask the same thing.
What you can book
Every venue that runs on G-Guest, across restaurants, salons, studios, classes and clinics. The network is new and each venue joins because it wants direct bookings rather than marketplace ones. Current list: g-guest.app/venues
For developers
Endpoint https://g-guest.app/api/mcp (Streamable HTTP, no authentication)
Tools search · fetch · get_business · check_availability · create_booking · check_booking · cancel_booking · request_listing
Guest languages en · nl · de · fr · es · it · id · bg (pass language on create_booking; confirmation and reminders follow it)
It is deliberately unauthenticated. An assistant acting for a stranger has no key and cannot get one; the guest’s own name and contact details are the identity that matters, and they are collected at booking time. If you build agents that take real-world actions and something here is ambiguous or wrong, write to hello@g-lab.studio. That feedback is the point.
Run a business?
You do not set any of this up. A venue on G-Guest gets it automatically: guests keep booking the familiar way on your own site, and assistants get a path they can complete.
Questions people ask
Does this cost the guest anything?
No booking fee, ever: booking through an assistant costs the same as on the venue's own site. If a venue takes a prepayment, the guest pays it exactly as they would on the venue's page.
Can the assistant confirm a booking before the prepayment is paid?
No. The assistant follows the venue's rules like everyone else. For a venue that takes a prepayment it receives a payment link and a pending status, the guest pays on the venue's own Stripe page, and only then is the booking confirmed. Instant booking stays instant.
Does the venue pay a commission?
No. G-Guest is a flat monthly fee, with no fee per booking, whoever makes it.
Can ChatGPT book any restaurant this way?
No. It can book venues that run on G-Guest. For everything else, ChatGPT uses its own partners.
Is my data shared with a marketplace?
No. The booking goes to the venue. There is no marketplace in the middle.
Why does ChatGPT need developer mode?
Because G-Guest is not yet a published app in the ChatGPT directory, it connects as a custom connector. We are working on the published version.