Avalon
Cloud PMS with an open web API for booking and finance data. Based in Palma, Mallorca.
HOTEL INTEGRATIONS
It plugs into the systems you
already run.
73 integrations across your PMS, booking engine, messaging channels and guest tools: connected by us, not by your IT team.
All built and working. Nothing here is a roadmap item.
Region
PMS
30
Noray
PMS built on Microsoft Dynamics 365 Business Central. Cloud and on-premise, both connected.
4 connectors
SIHOT 360
German PMS suite. Reservation search and per-reservation detail over an authenticated session API.
Timon
Spanish PMS with 30+ years in the market and a JSON REST API. Widely used across Spain and Latin America.
ACI Hotel
QuoHotel
PMS on Microsoft Dynamics 365 Business Central, with OData REST APIs.
2 connectors
Ulyses Cloud
Cloud PMS for independent hotels and large chains, with an open API.
2 connectors
Winhotel
Spanish PMS since 1994, with query, booking and statistics APIs. Based in Palma, Mallorca.
Hestia
Spanish PMS supporting online check-in, passport scanning and payment processing.
2 connectors
Millenium
Tecsoft HOTEC
HOTEC PMS, in the market since 1989, covering reservations, billing and guest services.
DF Sistemes
Spanish PMS with a REST API carrying reservations and nested guest data.
New Hotel
2 connectors
Mews
Cloud-native PMS. Connected through the Mews Connector API for reservation and guest sync.
Hoteliga
Cloud PMS with documented reservation, guest and availability endpoints.
Opera Cloud
Connected through the Oracle Hospitality Integration Platform (OHIP).
Engisoft BIRD
BIRD PMS, configurable from independent hotels through to international chains.
Class One
Guest Hotel
Hotel Line
Prestige Soft
Barcelona-based PMS with an open API and no per-connection charge.
Deversor Cloud
Cloudbeds
Hospitality management platform, connected for reservations, guests, rooms and payments.
2 connectors
Master Yields
TCA Innsist
Hospitality software house with 35+ years in the market, OTA/GDS/CRS compliant.
Host
Leading PMS in the Portuguese market.
Front Hotel
Suite PMS
Lean Hotel System
Cloud PMS with an open API on its enterprise plan.
Impala
Hotel API platform for guest data and reservations.
Booking engine
13
Neobookings
Booking engine with native MCP integration for AI agents and deep GA4 instrumentation.
Witbooking
Booking engine sending reservation webhooks across the commit, modify and cancel lifecycle.
2 connectors
Roiback
Booking engine and CRS handling 40M+ availability requests a day. Both are connected.
2 connectors
Paraty Tech
Booking engine built on in-house technology, with native flight and hotel packaging.
Mews Booking Engine
Connected through the Mews Distributor API for availability search and booking creation.
BookingCore
Mirai
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
Hotetec
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
TravelClick iHotelier
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
Openroom
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
ORBook
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
Bookinweb
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
iTrip
Live availability and rates in the agent, plus a pre-filled deep link into the booking flow.
CRS & channel
1
Dingus
Messaging channels
5WhatsApp Business
The hotel connects its own WhatsApp Business Account through Meta Embedded Signup. Two-way messaging, templates, media and delivery receipts.
Connect the hotel's Instagram Business account for direct messages and comment replies in the shared inbox.
Facebook Messenger
Connect the hotel's Facebook Page for Messenger threads and comment replies.
Quicktext
Already running Quicktext (now Quinta) on your site? Onboarding detects it automatically and swaps it out cleanly for GuestMaker's own concierge.
Website chat widget
One script tag on the hotel's own site renders the AI concierge, in chat or voice.
Gmail & Google Workspace
Connect a mailbox by OAuth. Mail arrives in real time, the AI drafts replies, and they send as that mailbox.
Available
Microsoft 365 & Outlook
Connect an Outlook or Microsoft 365 mailbox by OAuth, with real-time inbound over Microsoft Graph.
IMAP & SMTP
Any other mailbox, by host and password. Polled rather than pushed, so inbound is on a short delay.
Your own sending domain
Publish our DKIM and SPF records on the hotel's domain so campaigns send from its own brand, not ours.
Voice & telephony
2Available
Ringover
Screen pop, click-to-call, and call history with recordings on the guest's contact record.
Transfer to your phone system
The AI voice agent hands a live call to the hotel's real numbers over SIP, optionally briefing the staff member first.
Online check-in
2Hotelinking Autocheckin
Per-reservation pre-arrival check-in links, sent as a merge tag in WhatsApp and email.
Civitfun
Per-reservation pre-arrival check-in links, sent as a merge tag in WhatsApp and email.
Loyalty & wallets
3Loyalty sign-in for booking engines
Guests sign in to the hotel's booking engine with their loyalty account. GuestMaker is the identity provider, live with Paraty Tech and Mirai.
2 connectors
Points as cash credit
A drop-in script for the booking engine that lets members spend points as money against a direct booking.
Apple Wallet
Members add a signed loyalty card to Apple Wallet.
Reviews & feedback
3
123COMPARE.ME
Rate parity monitoring and booking-engine conversion tools, so direct stays the cheapest option across OTAs and metasearch.
ReviewPro
Guest feedback platform with direct-response APIs for Google and Booking.com reviews.
TrustYou
Guest feedback and reputation platform.
Guest experience
2
STAY App
Guest experience app covering room service, feedback and messaging.
2 connectors
Goguest
2 connectors
Advertising
2
Google Ads Customer Match
Connect the hotel's Google Ads account; marketing-consented segments sync as hashed Customer Match audiences.
Available
Meta Custom Audiences
Connect the hotel's Meta Ads account; marketing-consented segments sync as hashed custom audiences.
Payments
1
Stripe
The hotel connects its own Stripe account; the sales agent issues checkout links for prepaid rates and card guarantees straight into it.
Developer
5REST API
Push reservations, guests, events and loyalty from any system with an issued API key.
Outbound webhooks
Register an HTTPS endpoint and receive signed GuestMaker events, with automatic retry.
MCP server
An OAuth-authenticated MCP endpoint exposing contacts, reservations and campaign analytics as tools to any AI client.
Slack
Paste an incoming-webhook URL to get live-chat handoffs and alerts in the hotel's own workspace.
Conversion tracking tag
A first-party tag on the booking engine that attributes real bookings back to the campaign that caused them.
Don’t see your system?
Most of this catalogue exists because a hotel asked. Tell us what you run and we’ll tell you honestly how long it takes.
Request an integrationOr build it yourself.
A REST API, signed outbound webhooks and an MCP server, so your own systems can read and write guest data directly.
Read the docs