Data Validation — entry 006 of 7
US Extract
Smarty's US Extract API scans arbitrary blocks of text — emails, PDFs-turned-text, scraped web pages, free-text form fields — to locate and validate US postal addresses embedded inside them, rather than requiring the caller to already know where an address starts and ends. Each match comes back with the same standardized, USPS-checked components (city, state, ZIP+4, delivery-point data) as Smarty's dedicated street-address API, plus the surrounding text offsets. It shares billing and account access with the rest of Smarty's address-data platform, so an existing Smarty key also works here.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score75
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/us-extract/"><img src="https://greatapis.com/badge/us-extract.svg" alt="Scored 75 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.