Real-time U.S. residential address verification, home-type classification, and property-value data — one simple API.
Website · API Docs · Get an API key · Status
AddressVerify (addressverify.io) is an address-verification API built for marketing, lead-quality, and home-services teams. A single request tells you whether a U.S. residential address is real and deliverable, what kind of home it is, and what it's worth — with optional expanded property data (beds, baths, living area, year built, lot size, tax assessment, and listing status).
| Language | Package | Repository |
|---|---|---|
| JavaScript / TypeScript | @addressverify/sdk |
addressverify-js |
| Python | addressverify |
addressverify-python |
import { AddressVerify } from "@addressverify/sdk";
const av = new AddressVerify({ apiKey: process.env.ADDRESSVERIFY_API_KEY! });
const result = await av.verify("123 Main St, New York, NY 10001");
// → { addressValid: true, homeType: "SINGLE_FAMILY", homeValue: 273900 }- 🏠 Residential focus — classifies
SINGLE_FAMILY,MULTI_FAMILY,APARTMENT,CONDO,TOWNHOUSE,MANUFACTURED, andLOT - 💰 Property values — estimated home value plus expanded property, tax, and listing data
- ⚡ Fast & simple — one REST endpoint, single- or multi-line input, JSON in/out
- 🆓 Free to start — 100 API calls/month, no credit card required
- Create a free account at app.addressverify.io
- Grab your API key from the dashboard
- Install an SDK above (or call the REST API directly)
© AddressVerify · addressverify.io