Cornerstone Data Studio

The AI-powered trust engine for real estate.

The data behind every real estate decision lives in thousands of places, assembled by hand every time someone needs it. Cornerstone Data Studio does it once, so every person and property has a standard, traceable, governed record in a single place.

How it works:

Data sources and providers

Connected to 1,000+ property, identity, and financial data sources across North America, through direct integrations and AI agent collectors.

Demographics and censusRates and markets
County records and land registries Banks and lenders Identity verification Credit bureaus
Insurance and risk Permits and construction Valuations Corporate registries
Recorded salesProperty tax

Standardization

Every source has its own way of naming data. The Studio renames each field into a common language for real estate portfolio management. Currently at 3,000 fields and counting.

Standardize
grantee → ownerName
Govern
ownerName, verified

Governance

Real estate data is full of mistakes. Different AI models check each other's work: is this the right field, and does the value make sense? Low-confidence answers go to a person.

Provenance

The source travels with the data. Every field is stamped with where it came from, when it was collected, and the checks it passed.

Provenance
NYC County Record, Jun 2026
The output

The data behind a real estate decision.

The Studio provides the property, identity, and financial data needed for a real estate decision or transaction. These governed records together become the verified portfolio.

155 Franklin St
New York, NY
Verified
Ownerassembling
Sourceassembling
For data providers

Provide the data.

You hold data homeowners need. Put it on the Studio and reach them through every application built on it — governed, attributed, and earning.

Become a provider
For county records, lenders, insurers, and data vendors.
For app and AI developers

Build on the data.

Ask one API about any property in North America and get one governed record back, provenance attached. REST for systems, MCP for agents.

Get API access
One integration, and every property is one call away.