Build With Landexar.
Add source-backed property and development intelligence to applications, internal systems, and customer experiences.
// Fetch property intelligence for an addressconst response = await fetch('https://api.landexa.com/v1/properties/1247-Meridian-Ave-Austin-TX',{headers: {'Authorization': 'Bearer YOUR_API_KEY','Accept': 'application/json',},});const property = await response.json();// Response includes verified, source-attributed recordsconsole.log(property);// {// parcel_id: "1247-MER-78701",// owner: "Meridian Holdings LLC",// assessed_value: 2140000,// zoning_code: "MU-6",// lot_size_sqft: 18295,// source: "Travis County Appraisal District",// source_url: "https://traviscad.org/...",// confidence: "high",// last_verified: "2026-08-01",// developments_nearby: [// {// project_id: "ATX-2026-04821",// name: "Meridian Transit Hub Expansion",// status: "approved",// distance_mi: 0.3,// source: "City of Austin Planning Dept.",// confidence: "high"// }// ]// }
REST
JSON API
OAuth 2.0
Authentication
Real-time
Change events
3,100+
Counties covered
Core API Endpoints.
Four primary endpoints cover the full scope of property and development intelligence. Select an endpoint to explore its structure.
Parcel and Ownership Data at Scale.
Query verified parcel records, ownership history, assessed values, legal descriptions, and deed transfers by address, APN, or geographic coordinates. Returns normalized, source-attributed records across all covered jurisdictions.
Response fields
Beyond the Core API.
Map tiles, change notifications, webhooks, and embeddable widgets extend what you can build with Landexar data.
Map Tiles
Render Landexar Data Layers on Your Maps.
Serve Landexar's zoning, development, and parcel layers as XYZ map tiles. Compatible with Mapbox, Leaflet, Google Maps, and any tile-based mapping library.
Change Notifications
Get Notified When Data Changes.
Subscribe to change events for specific parcels, addresses, or geographic areas. Receive structured notifications when permit activity, ownership transfers, zoning amendments, or new development projects are detected.
Webhooks
Push Intelligence Into Your Systems.
Configure webhook endpoints to receive real-time event payloads when monitored properties or areas change. Integrate directly with CRMs, internal tools, underwriting systems, or custom workflows.
Embeddable Widgets
Drop Landexar Into Any Web Experience.
Embed interactive property intelligence panels, development maps, and FutureView timelines directly into your application or customer portal with a single script tag and configuration object.
Apply for Developer Access.
The Landexar API is available to a limited number of integration partners during early access. Tell us what you're building and we'll be in touch.
Ready to Integrate?
Access source-backed property and development intelligence through the Landexar API.