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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.
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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

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

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