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Address Verification
Real-Time Global
Address Validation
Lob’s Address Verification APIs ensure that your addresses are deliverable and everything you send arrives at the right place, at the right time—every time.
Build Fast, Launch Faster
Try it Out
Enter an address to verify deliverability and see all the
address data available with Lob.
Complete Verification Solution
Accurate and Deliverable Addresses Across Your Systems
  • Increase conversion and eliminate mistakes with front-end autocompletion
  • Reduce returned mail with global delivery verification
  • Maintain evergreen database integrity with address standardization
Detailed Deliverability Data
USPS CASS Certified Address Details at Your Fingertips
  • Access deliverability details such as missing unit information
  • Identify P.O. Boxes and residential or commercial buildings
  • Ingest precise delivery point latitude and longitude
Intelligent Address Correction
Address Standardization and Autocorrection to Eliminate Wasted Costs
  • Ensure accuracy by correcting mistakes and misspelled addresses
  • Meet USPS address formatting requirements with data standardization
  • Prevent bad address data from causing downstream bottlenecks
Current Reduces Compliance Spend While Improving Their Customer Experience
“ We use Lob Address Verification in front of our KYC service to catch any mistakes made by our customers when inputting their address. ”
Trevor Marshall
CTO
Features Powering Better
Address Data

RESTful APIs

Implement developer-friendly tooling

Front-End Autocompletion

Improve website usability and eliminate typos

Global Address Verification

Access delivery data for over 240 territories

USPS Metadata

Enhance your data with details such as vacancy, building type, and more

ZIP Code Lookup

Collect complete location details associated with a ZIP Code

Precise Geocodes

Ingest USPS delivery point latitude and longitude

Lob Confidence Score

Leverage Lob’s extensive insight into mail tracking events

Machine Learning

Increase accuracy with machine learning trained algorithms

Address Elements

Add front-end address autocomplete and verification to any HTML webform in minutes