Built on protocols we publish, not a stack we rent

Caravanserai OS is one layer of a larger argument, and deliberately not the whole of it. The standard underneath is published through a non-profit alliance rather than held by a vendor — including this one. These are the working systems that argument is built on.

The distribution layer is already running

The part of this that has to exist before anything else works — the layer that lets an AI agent find a property and book it directly — is built, deployed and publicly reachable today. It is the piece a regional channel is assembled on, and it is the reason this proposal is engineering rather than a wish.

claude — booking via MCP

> "Book me a room in Memphis, March 15–18"
 
I'll search ADAPT network properties via MCP.
 
  search_availability({
    city: "Memphis, TN",
    check_in: "2026-03-15",
    check_out: "2026-03-18",
    max_rate: 200
  })
 
  Found: The Exchange — Downtown Memphis
  King Suite   · $189/night · Floor 12
  Queen Double · $149/night · Floor 8
  Studio       · $109/night · Floor 4
 
  Source: Direct via MCP · 0% OTA commission
  ✓ Book → exchange.building/book

Transcribed from live systems. The property answering here is the pilot in Downtown Memphis — the same four surfaces take a Bukhara guesthouse without changing anything but the inventory behind them. The Caravanserai operator product itself is still in development.

Four ways in

MCP server: Six tools an AI assistant can call directly — search_availability, get_rates, get_property, create_booking, cancel_booking, search_properties. Any MCP-compatible agent discovers and transacts without an intermediary in the path.
Command line: building-os search, rates and book, for operators and integrators who would rather script it than click it. The same calls the agent makes, from a terminal.
REST API: Standard JSON over OAuth 2.0 with an OpenAPI spec, so SDKs generate themselves. Works with whatever a property's existing systems are already written in.
Agentic markdown: A single file at /.well-known/hotel.md — structured availability with no infrastructure at all. It is the on-ramp for a guesthouse with a website and nothing else, which describes most of the region.

Check it yourself

Neither of these is a screenshot of an intention. Both are live endpoints; fetch them from any terminal and read what comes back.

The systems behind it

ADAPT Alliance — hotelmcp.org — ADAPT Alliancehotelmcp.orgThe alliance publishing the protocol — MCP, CLI, REST and markdown surfaces defined in the open, owned by no vendor.

Building OS — building-os.io — Building OSbuilding-os.ioThe platform implementing it against a real 200-unit property, with the integration surfaces listed on its own front page.

ADAPT AllianceThe open protocol layerhotelmcp.org: A non-profit alliance publishing the standards that let accommodation providers be discovered and booked directly, by people and by the software acting for them. This is the piece a regional working group would build on, and it is deliberately owned by no vendor — which is the only reason it is safe for a region to standardise on.
Building OSThe platform underneathbuilding-os.io: Property management with booking distribution built in natively rather than rented from an intermediary. Inventory is published so that any booking agent can discover and reserve it directly. Caravanserai OS is this engine, tuned for Central Asian properties and languages rather than rewritten from scratch.
Memphis MarketA city-scale channelpmsmcp.com: Stays, food, transport and experiences for a single city, settled locally. It is the closest working answer to what a regional channel looks like once the distribution layer belongs to the market it serves.
Toshkent MulkRegional groundworkuzbmulk.com: A cadastre-anchored property marketplace for Tashkent in Uzbek, Russian and English — included because it shows the work was oriented to the region and its languages from the start, rather than translated into them afterwards.

Working on the same problem?

Associations, operators, ministries and platforms all have a stake in where the margin on a night's stay ends up. If you are working on this from any of those directions, the conversation is open.

Get in touch