Use email support, or check the API documentation.
Data on 220+ million properties across Canada, the United States, Great Britain, Latvia, Slovenia, Czechia, France, Spain, the Netherlands, Finland, Poland, Norway, Switzerland, Estonia, Austria and South Korea: physical characteristics, location, permits, listings, market trends, and history. Each property is one home with its own address, so each flat in a building, each half of a duplex and a basement suite with its own address is a record of its own. Full response examples are in the API documentation.
Data is updated daily and continuously validated. We combine multiple sources, public records, and user submissions.
Valuation tools, market analysis platforms, insurance quote generators, mortgage calculators, and real estate websites. The flexible query system lets you customize data retrieval.
The API returns standard JSON, so any language that can send a web request works, and there is no client library to install. The documentation shows its examples in C#, Go, Java, JavaScript, Python, Rust, TypeScript, and curl. Authentication is your API key, sent as the api_key query parameter on each request.
Each API key is limited to 10 concurrent requests in flight at any one time. Going over this limit returns a 429 response. The API typically responds in under 200ms, though response times vary under heavy load. See our terms of service for details.
You can integrate property data into your services, but reselling or white-labeling direct API access is not permitted.
Every money value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the numbers carry no currency marker, so read the country_abbreviation field to know which currency you have. The income bands in the demographic fields work the same way, so a band such as 100,000 to 149,999 counts Canadian dollars in Canada and United States dollars in the United States, which means the same band covers a different real income level in each country. Before you compare, total, or average across countries, convert one side using an exchange rate of your choosing. One piece of maths Houski does do is move the income figures to today's money, scaling from the money of their source year with each country's own consumer price index. Billing is separate from all of this and is always in United States dollars.
Pay-as-you-go usage-based pricing starting at $99/month. Annual contracts with unlimited use for a flat fee, within fair use, are also available: contact us. Your accrued usage cost for the current billing cycle is shown in the dashboard and refreshes every 12 hours.
Yes. Every account has a maximum monthly API spend, $199 USD for a new account, which you can change at any time on your API dashboard. A request that would go past it is refused and not billed.
Where useful, yes. Listing and permit data have history. The prediction endpoint can return estimated list prices, sale prices, and rents for any date from January 2021 to today.
No, but adding the price_quote query parameter to a request returns the cost of the current page of results without billing you or returning the data.
We don't offer uptime guarantees, service credits, or refunds for downtime. We work to keep the API highly available, but cannot commit to any specific uptime number. See our terms of service.
Yes. Ready-made bulk datasets download as CSV from the datasets page. Annual contract customers can request custom formats and delivery methods. Contact us.
Yes - every state, province, territory and region of Canada, the United States, Great Britain, Latvia, Slovenia, Czechia, France, Spain, the Netherlands, Finland, Poland, Norway, Switzerland, Estonia, Austria and South Korea. Coverage is most detailed in major urban areas, and rural and remote coverage is expanding.
Yes - filter and sort using is_commercial_eq, with fields like zoning, commercial use type, building size, and assessment values.