Terms of use

Terms of use (public beta)

Effective 2026-07. Using the site, API, or MCP server means you accept these terms.

As-is, no warranty. This is beta software operated by one person. Everything is provided as-is and as-available, with no warranty of any kind — merchantability, fitness for a particular purpose, uptime, or correctness. Endpoints, fields, models, and limits change without notice; changes that move numbers are logged in the changelog.
Automated valuations are not appraisals. Every value is the output of an automated valuation model with published error — median ARV miss 20.1% against 744 resales, as-of 2026-06 (accuracy). Nothing here is investment, legal, tax, or brokerage advice. Verify independently before spending money.
FCRA-prohibited uses. No output may be used, in whole or in part, for tenant screening, credit decisions, employment screening, insurance eligibility, or any other purpose regulated by the Fair Credit Reporting Act. This service is not a consumer reporting agency and its outputs are not consumer reports. See also fair housing.
No bulk redistribution. You may not resell, mirror, or redistribute served data in bulk. Derived analysis and quotation are fine with attribution (“Chicago Value Map,” with a link). Upstream data terms pass through — see attributions (Zillow, City of Chicago, OpenStreetMap/ODbL, and others).
Rate limits are enforceable. The beta limit is 30 calls/min/IP. Circumventing limits, scraping past them, or degrading the service for others may result in blocking without notice.
Liability. The service is free; to the maximum extent permitted by law, total liability is $0. You bear all risk of decisions made on these numbers.
Governing law. Illinois, USA, without regard to conflict-of-law rules.
Contact. GitHub issues on the project repository (placeholder until the repository link is published).