US Autocomplete

API

Real-time US address autocomplete for fast, accurate data entry

Overview

The US Autocomplete API provides RESTful endpoints (e.g., /suggest) to deliver real-time US address suggestions as users type. Responses are JSON-formatted, containing partial or full address components like street, city, state, and ZIP code. It supports data validation by ensuring address accuracy, reduces typos in form entries (checkout, registration), speeds up address input, and integrates seamlessly with web/mobile apps. Ideal for e-commerce logistics, customer data management, and any application needing reliable US address completion.

Example Integration (JavaScript)

script.js JS


fetch('https://www.smarty.com/docs/cloud/us-autocomplete-pro-api')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Responses
Real-time Suggestions
US Address Coverage
Partial Input Support
Accurate Data Validation

Frequently Asked Questions

? Is US Autocomplete free to use?

Yes, it offers a freemium model with a free tier (limited requests) and paid plans for higher volume or advanced features.

? Does it require an API key?

Yes, you need an API key from Smarty—sign up on their platform to get one for authentication.

? What is the response format?

All responses are in JSON format, including address components like street, city, state, ZIP code, and confidence metrics.

Top Alternatives

Google Places Autocomplete (US) Search Google

Loqate US Address Autocomplete Search Google

Zapier Address Autocomplete Search Google

Tool Info

Pricing Freemium

Category Data Validation

Platform Public API

Pros

⊕ Fast real-time responses
⊕ Reduces address entry errors
⊕ Easy form integration
⊕ Comprehensive US address data
⊕ Freemium tier available

Cons

⊖ Requires API key (free tier limits)
⊖ US-only coverage
⊖ Paid plans for high volume
⊖ No international address support