Partner with us

Explore the ways your organization can partner.

Cornerstone gives homeowners a verified portfolio of their real estate. Supply the data and credentials inside it, build on the governed record, or deliver portfolios to the people you serve.

Partner with us See where you fit
Current Cornerstone Partners
Property & financial data
Identity
Brokerage
Ways you can partner
01
Supply

Provide the data and credentials that go into a verified portfolio.

Supply the inputs
02
Build

Build real estate products and AI agents on one governed record.

Build on the record
03
Deliver

Put verified portfolios in the hands of the clients and institutions you serve.

Deliver portfolios
Supply

Put your data and credentials into every portfolio.

Provide what goes into a portfolio once, and it reaches every homeowner and professional who uses it, governed and attributed to you. See Data Studio for how the integration works.

Real estate data

Data providers

Value, assessment, title, liens, zoning. The facts about a property.

  • Earn new revenue from data you already hold.
  • Your name travels with every field, as the source.
  • One integration, and every app built on Cornerstone becomes a channel.
Become a data provider See Data Studio
Identity credentials

Credential issuers

The proof that an owner is who they say they are.

  • Your identity credential does the proving inside every portfolio.
  • Presented again every time an owner shares, not a one-time check.
  • A place people return to, next to the title record.
Add your credential See the credential layer
Other credentials

Issuers of record

Insurance, mortgage, energy rating, inspection, permits.

  • Issue a credential the owner carries and shares on their terms.
  • Your record, attached at the source and provable.
  • Reach owners where they already keep their home's record.
Issue a credential
Build

Build on the governed record.

Developers and AI agents build real estate products on one trusted record. Ask once, and get a governed answer with its source attached. See Data Studio for the technical details.

Developers and AI agents

One governed record for any property.

Ask once about any property in North America and get a single governed record back, assembled on demand.

  • One record per property, governed and assembled on demand.
  • Provenance attached to every field.
  • REST for systems, MCP for AI agents.
Get access See Data Studio
GET /property/124-maple-ave
ownerName"J. Smith"
marketValue1180000
source"Landcor"
verifiedtrue
One record, provenance attached
REST for systems, MCP for agents.
Deliver

Deliver verified portfolios to the people you serve.

You keep the client relationship. Cornerstone runs the portfolio, the verification, and the data behind it.

Professionals

Realtors

  • Stay connected to past clients in the years between buying and selling.
  • Give every client a verified record of their home they keep and open.
  • Be the name on the app when they think about their next move.

Wealth Management

  • See a client's real estate as part of net worth, not an estimate.
  • Track equity over time alongside the rest of the portfolio.
  • Verified property data for reviews and financial plans.

Accountants

  • Purchase price, dates, and cost basis on hand for every property.
  • Property tax history ready at filing time.
  • Deed and statements organized for capital gains and returns.

Lawyers

  • Clean title, deed, and ownership records in one place.
  • Estate planning with verified ownership and co-owners.
  • Documents the client can share on their terms.
Deliver under your own brand

Your own branded app, plus a credential that proves your people.

A white-label app your team hands to every client, and a professional credential that proves each of them is yours. Sutton is building on this.

  • Your brand on the front, the verified portfolio underneath.
  • A professional credential that proves each agent holds an active license.
  • Stay in front of clients between transactions.
Get your own branded app See the apps
YBYour BrandRealty
124 Maple Ave
Verified
Portfolio$2,140,000
Delivered byYour agent
ShareOpen
Jordan Reyes
Your Brand Realty
Verified
LicenseReal estate
StatusActive
Issued byCornerstone
Get in touch

Tell us where you fit.

Pick what matches your organization and we'll take it from there. We reply within two business days.

The fastest way to evaluate Cornerstone is to hold a portfolio yourself. Get your portfolio

You're here about: choose below
Real estate data Identity & other credentials Developers & AI Professionals
Sent. We read every one of these and reply within two business days.