RealEstateAPI Documentation
Property data APIs for PropTech and business applications. Query the nationwide public-record file, live MLS listings, lender-grade valuations, parcel boundaries, and owner contact data — all over JSON endpoints that take one API key and a POST body.
Getting started
Every endpoint is a POST to https://api.realestateapi.com authenticated with an x-api-key header. Get a key from the portal, then make your first call — the shortest useful path is Property Detail against an address you know.
Most integrations end up following the same two-step shape: use Property Search to find the properties you care about, then Property Detail to enrich the ones you keep. Searching is cheap when you use count and ids_only; enrichment is what spends credits. Paging and result modes covers how to keep that bill down.
Guides
Paging & result modes
Page through results, and use count, ids_only, and summary to spend fewer credits.
Resources
Property Detail
Pull the full county and public-record profile for a single address, APN, or property ID.
Property Search
Build lists across 150+ filters, take counts before you spend credits, and page through results.
Property Boundaries
Fetch parcel geometry as GeoJSON by address, lat/lng, APN+FIPS, or an enclosing polygon.
SkipTrace
Resolve owner contact details and demographics from an address, name, phone, or email.
Datasets
The endpoints group into six datasets. Plans grant access per dataset, so which ones you can call depends on your subscription.
| Dataset | What it covers | Start here |
|---|---|---|
| Property data | 160M+ nationwide parcels — ownership, tax, mortgage, lot, building | Property Detail |
| MLS | Live and historical listings, agent and office data, media | MLS Search |
| Valuations | Lender-grade AVM and tunable comparable sales | Lender Grade AVM |
| Boundaries | Parcel geometry as GeoJSON, plus map pins | Property Boundaries |
| People | Owner contact details, demographics, corporate ownership | SkipTrace |
| Pipelines | Saved searches, daily change files, CSV exports | Saved Searches |