Apartments.com API
No public API. Apartments.com integration is limited to bespoke PMS syndication feeds onboarded by emailing feeds@apartments.com, plus a short list of named Rental Manager partners. Every 'Apartments.com API' on the open web is an unofficial scraper.
Frequently asked questions
Apartments.com scores F on the API Report Card. No public API. Apartments.com integration is limited to bespoke PMS syndication feeds onboarded by emailing feeds@apartments.com, plus a short list of named Rental Manager partners. Every 'Apartments.com API' on the open web is an unofficial scraper.
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.
Apartments.com is the largest Internet Listing Service (ILS) for U.S. rentals, owned and operated by CoStar Group (NASDAQ: CSGP) since CoStar acquired it from Classified Ventures for $585M in 2014.
Real Estate, specifically multifamily and single-family rental property managers, owners, and landlords on the supply side, and consumer renters on the demand side. Renters search by city/neighborhood/commute, filter by price/beds/amenities/pet policy, take 3D tours, contact properties via in-platform messaging or scheduled tours, and submit applications.
Extremely high in U.S. rentals. Apartments.com is consistently the #1 or #2 rental marketplace by traffic alongside Zillow Rentals, and CoStar's residential segment crossed a $1.2B annual run rate in 2025.
Apartments.com holds the top-of-funnel and operating data layer for U.S. multifamily and a large slice of SFR: live unit availability and rent prices across 87K+ communities and 1.4M+ SFR listings, photos and 3D tours, prospect/lead inquiries (the dominant lead-gen channel for paid properties), online rental applications, TransUnion-powered tenant screening reports (credit, criminal, eviction), signed digital leases on state-compliant templates, recurring ACH/card rent payment records, maintenance requests, and CoStar's authoritative multifamily rent comp/benchmarking data feeding the monthly 'Multifamily Rent Growth Report.' Switching costs are high: years of inquiries, reviews, screening history, and lease/payment records sit inside the platform, with no clean export path.
Mature. Apartments.com traces back to 1992 as a print-to-web brand, was acquired by CoStar in 2014 for $585M, and underwent a major Jeff Goldblum-led brand and product relaunch in 2015.
No public API exists, all programmatic access flows through bespoke PMS syndication feeds that require email-based onboarding (feeds@apartments.com / breezecafe@yardi.com) and 24–48 hour manual verification. AppFolio integration cannot be self-served, operators must email partnerspecialist@appfolio.com to initiate the connection. Full sourced list under Sources below.
Common alternatives include Zillow Rentals, Realtor.com Rentals, Trulia, Redfin Rentals, Rent. (Rent.com), HotPads. 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.