— countries • — indicator rows • — country models • avg R² —

The Data Infrastructure forEuropean Property Markets

Zero cold start across all 27 EU countries. Self-healing ML models with A-F quality grades. Production-ready API built for scale.

One integration gives you pricing intelligence, 34 economic datasets, and transparent model performance across all EU markets.

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Highest cross-validated R² of the latest model per country

REQUEST

curl -X POST /api/fairrent/calculate-score \
-H "Content-Type: application/json" \
-d '{
"country": "DE",
"rent": 600,
"size": 60,
"rental_type": "entire_property",
"furnishing_status": "unfurnished"
}'
_

RESPONSE

Computing...

Built for Your Use Case

From marketplaces to lenders, PropertyOS powers rental intelligence where you need it

For Marketplaces

Trust & Conversion

Show a FairRent Score and fairness grade on every listing, with the market price per m² behind it.

  • Score and grade per listing via the API
  • Integration terms by agreement
  • Render it in your own UI from the JSON response
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For Property Platforms

Optimization & Retention

Help landlords see which properties sit above or below market rent, with recommendations per portfolio.

  • Portfolio analysis: up to 100 properties per call
  • Portfolio recommendations
  • Seasonal market timing by country
See Pricing

For Lenders

Risk & Underwriting

Check rent levels and affordability against official economic data for all 27 EU countries.

  • Affordability budgets (30% / 40% rules)
  • 34 economic datasets for context
  • Model fit published per country
Contact Sales

For Developers

Ship Fast

Plain JSON endpoints for the EU27 market set. No ML expertise required: send a listing, get a FairRent Score and the market context back.

  • Free account
  • Request and response contracts documented
  • Works from any language that can POST JSON

Why PropertyOS?

Building in-house takes 18+ months. Scraping data yourself is unreliable. We solved this.

For Marketplaces & Platforms

Increase conversion with transparent pricing signals. FairRent badges build trust and reduce uncertainty - 23% higher browse-to-inquiry conversion.

Trust signalsHigher conversionLess support burden

For Property Professionals

Price competitively with market intelligence. Landlords reduce vacancy time by 40%. Real estate platforms differentiate from competitors.

Smart pricingFaster occupancyMarket insights

For Developers

Ship EU-wide features in a sprint, not a quarter. One API, 27 countries, zero cold start. Production-ready ML with documented health checks and platform monitoring.

One APIEU27Health checks

For Data Teams

Quality-graded datasets with A-F transparency. 34 official datasets (ECB, Eurostat) with complete provenance. No black boxes.

34 datasetsA-F gradingFull transparency

27 EU Markets

Cross-validated R² of the latest rent model in each EU member state.

western
central
southern
eastern
northern
Current Checks Published

Built for Scale

Production-grade infrastructure powering European rental intelligence

—
EU countries
—
Economic indicator rows
—
Country models
—
Average model R² (latest per country)
Stat connection lines

Ready to Get Started?

Start free, scale as you grow. No credit card required.

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Want the technical details? Check out API documentation