Zillow API API
The original Zillow API was retired in September 2021. Programmatic access now runs through approval-only paths: Bridge for MLS members and licensed brokers (with the Zestimate excluded), and the Rentals Feed and Lead API, which take a 4 to 6 week production test cycle to enter.
Frequently asked questions
Zillow API scores F on the API Report Card. The original Zillow API was retired in September 2021. Programmatic access now runs through approval-only paths: Bridge for MLS members and licensed brokers (with the Zestimate excluded), and the Rentals Feed and Lead API, which take a 4 to 6 week production test cycle to enter.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
Zillow Group (NASDAQ: Z, ZG) is the largest U.S. residential real estate marketplace, operating Zillow.com, Trulia, StreetEasy, HotPads, Out East, ShowingTime, Bridge Interactive, dotloop, and Follow Up Boss.
Real Estate, specifically (a) MLSs, licensed brokerages, and MLS-affiliated technology vendors needing normalized listing/IDX data via Bridge; (b) multifamily and SFR property managers syndicating rentals to the Zillow Rental Network; and (c) the consumer-facing renter/buyer market. Consumers search Zillow.com for for-sale and for-rent listings, view Zestimates and Rent Zestimates, save searches, request tours, and contact Premier Agents or property managers.
Extremely high.
Zillow holds the top-of-funnel demand layer and a defining valuation layer for U.S. residential real estate: 100M+ Zestimate and Rent Zestimate valuations, for-sale/for-rent listing data (MLS-fed via Bridge plus FSBO and rentals), saved searches, tour requests, Premier Agent lead routing, agent reviews, mortgage pre-qual flows, ShowingTime appointment data, dotloop transaction documents, and (via Bridge) normalized RESO MLS Property/Media/Member/Office records spanning most major U.S. MLSs.
Mixed. Zillow itself launched in 2006 and is technologically mature on the consumer side (modern React/Next.js front-end, mobile apps, 3D Home tours, ShowingTime scheduling).
Zillow's public API was killed on September 30, 2021 with limited migration support, forcing thousands of dependent apps and businesses to either qualify for Bridge Interactive or move to scrapers/third-party data vendors. Bridge Interactive is reserved for MLS members and licensed brokers in 2026, individual developers and most proptech startups do not qualify, and approvals take months. Full sourced list under Sources below.
Common alternatives include Realtor.com (Move, Inc. / News Corp), Redfin, CoStar / Homes.com / Apartments.com, Bridge Interactive (sister product), ATTOM Data, CoreLogic. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.