Custom Apaleo integration development
Appfront builds custom Apaleo integrations that connect your hotel PMS with channel managers, payment providers, door locks, guest apps, POS, CRM and BI. Through the open Apaleo API and webhooks, we synchronise reservations, availability, rates and guest data in real time. Because Apaleo is built API-first, even deep custom integrations are relatively accessible, without your team having to re-key data manually.
What is an Apaleo integration?
Apaleo is an API-first cloud hotel PMS from Germany, designed for hotels, serviced apartments and hospitality groups. The platform handles reservations, rates and availability, check-in and check-out, folios and invoicing. Where older property management systems often act as a closed box, Apaleo is deliberately open: almost all functionality is available through an open REST API, supported by a large app marketplace ecosystem.
In practice, a custom integration means: synchronising reservations and availability with your channel manager, letting payments and invoicing flow through with your payment provider, controlling door locks or guest apps based on check-in status, and passing guest data and transactions on to your CRM, marketing tools or BI dashboard. Webhooks ensure that every change, whether a new booking, an amended stay date or a completed payment, lands in the connected systems straight away.
Appfront builds in line with the official Apaleo developer documentation and the OWASP ASVS security standard. We align the data flows, error handling and synchronisation logic with your actual hotel processes, so the integration stays reliable, even during peak pressure around arrival and departure times.
Reservations & availability
Bookings, stay data and availability flow in real time between Apaleo and your other systems. No duplicate entry and no overbookings caused by outdated availability: every change is passed on immediately via webhooks.
Payments & folios
Payments, folios and invoicing flow through with your payment provider. Transactions are matched back to the correct stay, so your accounts are accurate and guests receive a correct invoice, without any manual reconciliation.
Open API & marketplace
Apaleo makes almost all PMS functionality available through its open API, with a broad marketplace ecosystem. If there's no ready-made app for your situation, we build the missing integration to measure: deeply integrated and fully yours.
Our development process for Apaleo integrations
We work to a proven methodology that removes uncertainty early and delivers a stable integration. From an initial analysis of your hotel processes, PMS configuration and the systems to be connected, through to go-live and ongoing management, every step is aimed at an integration your team can understand and trust.
We map out which Apaleo data you want to unlock (reservations, availability, rates, folios), which systems (channel manager, payments, POS, door locks, CRM, BI) need to be connected, and which events must be passed on in real time.
We design the integration architecture around the open Apaleo API, select the right OAuth flow and webhooks, and define an error-handling strategy.
Implementation with automated tests, structured logging and monitoring. You see working builds along the way.
Controlled go-live with data validation and a safety net, followed by ongoing management and further development.
What an Apaleo integration delivers in practice
Every Apaleo integration is set up specifically for your type of accommodation, hotel processes and connected systems. Below are the capabilities we most often deliver for organisations that use Apaleo as the core of their hospitality stack.
Reservation and availability sync
Reservations, stay data, units and availability are synchronised in real time between Apaleo and channel managers, OTAs or your own booking engine. Webhooks prevent availability from lagging behind, so overbookings become a thing of the past.
Payment and POS integration
Payments, deposits and folio postings flow through with your payment provider, while bar, restaurant and spa revenue from the POS system lands on the correct stay. The folio is accurate to the penny at check-out, without manual re-keying.
Channel manager integration
A two-way integration between Apaleo and your channel manager keeps rates, restrictions and availability in sync across all distribution channels. Bookings from OTAs flow automatically into the PMS, and price changes are sent back to the channels automatically.
Keyless entry & guest app
Based on the check-in status in Apaleo, we open door locks, send digital keys and feed a guest app with stay information. Guests check in themselves, get access to their room and arrange extras, leaving your reception team with more time to spare.
CRM, marketing and guest data
Guest profiles, stay history and preferences flow into your CRM and marketing tools. This lets you run targeted pre-stay and post-stay communication, build loyalty and maintain a complete view of every guest, set up in full compliance with GDPR.
Revenue management & BI
Reservation, rate and revenue data from Apaleo feeds your revenue management tool or a BI dashboard such as Power BI. RevPAR, occupancy and pickup are visible in real time, so you can adjust pricing and strategy based on current figures rather than scattered exports.
Typical use cases in practice
An Apaleo integration looks very different from one organisation to the next. We see a number of recurring patterns, and for each of them we have a working setup that pays close attention to the open API, the correct OAuth flow and reliable event handling.
Independent hotels
Individual hotels that want to connect their Apaleo PMS to a channel manager, payment provider and guest app. Reservations and availability stay synchronised everywhere, and the front desk has more time for the guest. See also our API integrations and the Mews integration as an alternative PMS.
Serviced apartments
Operators of serviced apartments and long-stay accommodation who work with self check-in, keyless entry and flexible stay lengths. Based on the check-in status in Apaleo, we drive door locks and feed the guest app, so guests can check in and out on their own.
Hotel chains
Chains and multi-property groups that want to manage several Apaleo properties centrally. Reservations, rates and revenue come together in central dashboards and a chain-wide CRM, while each location keeps its own processes and local payment and POS integrations.
Hospitality tech builders
Software companies and hospitality tech start-ups that want to connect their own product to Apaleo, possibly as a marketplace app. We build the integration on the open API, handle the OAuth flow and webhooks, and deliver a scalable, well-documented integration.
Technology we use
We build Apaleo integrations using the official open API and webhooks (events), combined with the backend stack that suits you. The precise choice depends on the systems to be connected, such as channel manager, payments, POS and BI, so that your own team can manage or further develop the integration.
Why choose Appfront for your Apaleo integration?
Appfront has extensive experience building API integrations for a wide range of organisations in the Netherlands. We always start with a thorough analysis of your existing systems and processes. An integration should not only work technically, but also add practical value to your hotel operations.
For every integration, we write clear documentation and make sure your own team, or any future supplier, can understand and manage it. No black box, just transparent code and clear agreements on monitoring, alerting and maintenance.
You work with a dedicated point of contact who understands both the technical and the functional side. This keeps communication short, prevents misunderstandings and speeds up decisions when choices need to be made during development.
See also our wider services around API integrations, middleware, custom software development and web app development.
- Experience with the open Apaleo API, webhooks and OAuth 2.0
- Specialist in integrations with channel managers, payments and POS
- Familiar with reservations, units, rates and folios/invoices
- Secure by default: credential rotation, webhook validation, scoped permissions
- Structured error handling and retry mechanisms
- Comprehensive logging and monitoring from day one
- Clear documentation your team can read and manage
- A fixed point of contact, no account managers passed around
- Ongoing maintenance and proactive further development
- A way of working tailored to your existing hospitality stack
Security and privacy in Apaleo integrations
An Apaleo integration always processes guest personal data (names, contact details, stay history) and often payment transactions too. Appfront builds to the OWASP ASVS and Apaleo's security best practices. This means, among other things, storing OAuth tokens and API credentials in secure vaults, validating incoming webhooks, scoping permissions per integration and carrying out regular audits of the booking, payment and guest data flows. This way, it is always clear which system may see which data.
For payments, we take the PCI DSS requirements into account: card data remains with the payment provider and we do not store it ourselves, keeping your PCI scope to a minimum. We document the data flows so that your record of processing activities is complete and you can demonstrate compliance with the GDPR. We build according to the OWASP ASVS, with data minimisation as the starting point.
More on our security approach: information security policy and CVD policy.
- GDPR-compliant processing and minimisation of guest data
- Encryption in transit (TLS 1.2+) and at rest
- Role-based access and least-privilege principles
- PCI-conscious setup for payment flows
- Audit logs with traceable data flows
- Automatic retries and dead-letter queues
- Monitoring and alerting for anomalies
- Documentation for your record of processing activities
Frequently asked questions about Apaleo integrations
Answers to the questions we are asked most often about Apaleo integrations.
An Apaleo integration is a technical link between the Apaleo hotel PMS and another system, such as a channel manager, payment provider, smart lock, guest app, POS, CRM or BI dashboard. Through the open Apaleo REST API, reservations, availability, rates, guest details and folios can be read and written programmatically. Webhooks (events) provide real-time updates when something changes, for example a new booking or a changed check-in. An integration can be simple (synchronising reservations) or a deeply custom solution (POS, payments and revenue management in a single flow).
Apaleo suits hotels, serviced apartments and hospitality groups that want an open, API-first cloud PMS on which they can assemble their own tech stack. Because all PMS functionality is available through the open API, deep custom integrations are relatively accessible. If you are considering another modern cloud PMS, Mews is a well-known alternative; if you still work with a legacy PMS without an open API, middleware is usually needed to make the data accessible.
A simple integration, such as synchronising reservations and availability with one system via the Apaleo API and webhooks, can be delivered relatively quickly. More complex scenarios involving POS integration, payment processing, keyless entry, revenue management and deep CRM or BI integration usually take longer. After an intake meeting in which we map out your systems and data flows, we will give you a realistic estimate.
We work with the official open Apaleo API and webhooks (events), combined with the backend stack that suits you: Node.js, Python or .NET. Authentication runs via OAuth 2.0 using the client credentials or authorisation code grant. We work with the endpoints for reservations, units/properties, rates, availability and folios/invoices, and where needed connect channel managers, payment providers, POS systems and BI tools such as Power BI.
Costs are determined by the complexity of the data flows, the number of systems to connect, the required synchronisation frequency and the amount of custom business logic. Ongoing management, monitoring and support also affect the total investment. We always provide a clear quote following a no-obligation analysis of your situation.
Yes. An Apaleo integration processes guest data and often payment transactions too, so we build to the OWASP ASVS security standard: OAuth tokens and API credentials stored in secure vaults, webhook validation, scoped permissions and separate rights per integration. For payments, we comply with PCI DSS requirements by leaving card data with the payment provider rather than storing it ourselves. We document the data flows so that your record of processing activities remains complete and you can demonstrably comply with the GDPR.
Yes. Appfront regularly takes over existing integrations, including those originally set up by another party or through a marketplace app. We review the API integration, webhook configuration, error handling and authentication, document the current setup and propose improvements. From that point we can handle changes, extensions and monitoring, including timely rotation of API credentials.
Apaleo suits independent hotels, serviced apartments, hotel chains and hospitality groups that want to open up their PMS for custom integrations, as well as hospitality tech builders who want to connect their own product to Apaleo. Typical use cases include reservation and availability sync with channel managers, payments and POS in one flow, keyless entry and guest apps, and guest data feeding CRM, marketing and BI dashboards. For very small properties with no integration needs, we will work with you to see whether a lighter package is a better fit.
Ready to build your Apaleo integration?
Tell us which systems you want to connect to Apaleo, whether that's a channel manager, payment provider, POS, door locks, CRM or BI, and which reservation and guest data needs to flow in real time. We're happy to advise on the open API, webhooks and the right OAuth flow. A no-obligation first conversation will give you a clear picture of what's possible within half an hour.