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Cotality’s developer platform gives technology teams direct access to the property data, analytics models, and AI tools that power the U.S. real estate, mortgage, insurance, and enterprise data industries. This page explains what the platform covers, how products are organized, and what to expect at each stage of the product lifecycle.

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What this platform covers

Cotality maintains the largest independent dataset of U.S. residential and commercial property records — covering more than 150 million properties, updated continuously from county assessors, MLS feeds, permit filings, satellite imagery, and climate models. The developer platform exposes this data through four integration layers:

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How the platform is organized

Rather than navigating by protocol or data type, this portal is organized around who you are building for and what business outcome you need.

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Solutions by industry

Each industry section explains the relevant use cases, maps Cotality capabilities to business workflows, and gives you a clear path to implementation:

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AI and developer products

The products section catalogs individual capabilities — AI agents, MCP tool sets, and REST API groups — with technical reference, input/output schemas, and code examples.

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Technical reference

Detailed API schemas, MCP tool specifications, and integration guides for engineers implementing specific data products.

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Product lifecycle stages

Every capability in this portal carries a lifecycle label that tells you whether it is safe for production use. See the dedicated Product lifecycle page for the full definition of each stage, what it guarantees, and the current status of every capability.

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Access and visibility

Content on this portal is organized into two visibility tiers: Public — Available without authentication. Covers platform overviews, solution guides, integration patterns, and MCP/API reference documentation. Gated (coming soon) — Requires a Cotality account login. Will cover pre-release capabilities, UAT credentials, partner-specific documentation, and internal tooling. Gated content is marked with a lock icon in the navigation.

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REST APIs

In addition to MCP, Cotality’s data is available through a full suite of REST APIs. These are suited for traditional server-side integrations, data pipeline ingestion, and hybrid architectures where some components use AI agents and others use direct API calls. Available API products include:
  • Property API — Comprehensive property characteristics, ownership, and assessment data
  • Spatial API — Geographic and boundary data for parcels, neighborhoods, and counties
  • Insight API — Derived property intelligence and scoring models
  • Interchange API — Data exchange formats for title and settlement services
  • Location API — Address normalization and geocoding
  • Tax Servicing Data API — Tax assessment and delinquency data
  • WVS API — Waivers, value scenarios, and desktop appraisal data
  • Fraud API — Property transaction fraud signals and risk indicators
  • Underwriting Center API — Automated underwriting data and decisioning support
Interactive API documentation and a live playground are available in the API Reference section.

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Next steps

Find your use case

Browse industry solutions to see which capabilities match your business workflows

Get your credentials

Obtain OAuth2 credentials and make your first authenticated request

Try the MCP inspector

Connect to the MCP server interactively and explore available tools without writing code

Run a Python example

See a working end-to-end Python integration with the Cotality MCP server