Ensure deliverability with address verification

Up to 20% of packages struggle to get delivered due to errors in address validation. Typos, missing suite numbers, and incorrect postal codes all make address validation difficult. Our Address Verification API provides your customers with the best purchase experience by ensuring deliverability.

The shipping infrastructure of eCommerce

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Infinite Discs logo
Everything But The House logo
Snack Crate logo
Sticker Mule logo
Atoms logo
Vanishing INC logo
Ritual logo
Teespring logo
Shiek logo
BackerKit logo
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Ship better with
Address Verification Service

Free with
each label purchase

Once you're integrated with our Shipping API, you have full access to our CASS-Certified Address Verification Service.

Verify addresses

Our Address Verification System accurately verifies addresses in over 240 countries and territories.

you can trust

EasyPost's fast response time, robust infrastructure, and reliable uptime make our solution dependable.

How it works

Submit an address

Provide full destination address: unit, street, city, state, zip, and country.

EasyPost reviews the address

EasyPost validates the address, correcting or flagging it.

Ship with confidence

Have peace of mind knowing that your package is headed for a valid destination.

Add address verification seamlessly

# Import the EasyPost client.
import easypost

# Setup the client with your API key.
easypost.api_key = '259DA788-39A3-439E-BA1E-BC541B8BA520'

# Create and verify an address.
    street1='417 Montgomery Street',
    street2='FL 5',
    city='San Francisco',
  id: 'adr_3eb87ded5a824fd5bde6f6c977c33a30',
  object: 'Address',
  created_at: '2017-05-08T19:31:54Z',
  updated_at: '2017-05-08T19:31:54Z',
  mode: 'test',
  name: null,
  company: 'EASYPOST',
  street1: '417 MONTGOMERY ST STE 500',
  street2: '',
  city: 'SAN FRANCISCO',
  state: 'CA',
  zip: '94104-1100',
  country: 'US',
  phone: '4151234567',
  email: null,
  carrier_facility: null,
  residential: false,
  federal_tax_id: null,
  state_tax_id: null,
  verifications: {
    delivery: {
      success: true,
      errors: [],
      details: {
        longitude: -122.40288,
        latitude: 37.79298,
        time_zone: 'America/Los_Angeles',

Address verification for every carrier

Reduce data entry errors and increase deliverability

Now that over 50% of internet traffic is via mobile devices, people are making purchases from their phones more than ever, but auto-correct functionality isn't always your friend. Address verification helps your customers provide their address accurately to ensure they don't miss a delivery.

Start verifying addresses in seconds

Our worldwide database creates a comprehensive international network of addresses. Improve delivery accuracy to ensure your packages are going to the right place.

Getting started is easy

Take a look at our documentation and start building with one of our helper libraries (Python, PHP, Ruby, Node.js, Java, and more). Avoid month-long integrations and start verifying addresses in minutes with EasyPost.