Documentation for integration and explanation of the API's of Altum AI.

Welcome to the Altum AI API documentation. You can use the Altum AI API's to access Altum AI’s proprietary automated model valuation, sustainability advice, Kadaster Transactins as well as its real estate database.
Integrating is quick and easy with clear documentation and sample code in JSON.
Go to Altum.AI to get in touch or visit our pricing page first.
Create a free account at Mopsus to use our API's.

Altum AI offers data-driven solutions for real estate decision-making based on automated valuations of Dutch real estate, which - compared to existing automated valuation models and traditional appraisals - offer more insight and are more accurate and reliable.

The interactive reference API gives the appraiser full flexibility on finding the right reference objects based on multiple variables, comparables and strict functions.

The sustainability data from Altum AI offers companies insight into which sustainability measures are needed to increase the energy rating of a home. In addition, Altum AI calculates which investment is involved and what the return and payback time is for the homeowner. On the basis of this information, companies can better convince and inform their customers and prospects about the benefits of sustainability and make cross-selling and upselling easier.

Every year, every municipality determines the value of houses, business premises, shops, and unbuilt plots. This value is called the WOZ(Waardering Onroerende Zaken) value. The municipality uses the WOZ value to determine the amount of taxes. With WOZ API, Altum AI creates a unique and simple modus operandi for retrieving WOZ Values ​​for homes and properties in the Netherlands. The source of the WOZ values is the official WOZ Website. This model will provide values for properties with either BAGID or House address as long their WOZ Values exist on the WOZ Website. The WOZ API also provides other details in its response like the Build Year, Coordinates, Purpose of property, etc.

The goal of this API is to auto-suggest and -complete addresses in an application. This has benefits towards selecting the correct property, providing a more pleasant user experience for the user and improves the customer journey in an application.

The Move data API gives insights into housing objects and their listing status on the market including the market data on zip code level. With the Move Data API you are able to:
  • Fetch the listing data on an object based on the address
  • Fetch data on five relevant Owned or Rented properties in a certain zip code
  • Fetch total number of listed properties both for rent and for sale in a certain zip code

The Location data API provides aggregated data on postcode level. The API contains data on for example the inhabitants, house-types and the real estate market.

The Amenities API returns the distance to amenities for a given address in meters for amenities like a school, the railwaystation and a busstop.

The Transaction API returns the latest available price and transaction data from the Kadaster database
Last modified 12d ago
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On this page
Welcome to Altum AI
Automated Valuation Model
Interactive transaction references
Sustainability advice and Ecovalue
WOZ values
Auto suggest objects and address details
Move data and relevant listing information
Location data
Amenities data
Transaction data from Kadaster