Lob

Address Verification API

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Free Tier

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.

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

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

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

Features

  • RESTful APIs Implement developer-friendly tooling

  • Front-end Autocompletion Improve website usability and eliminate typos, for webpages across the world

  • Global Address Verification Access delivery data for over 240 territories, via API or CSV file

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

  • Bulk API Endpoint Process large quantities of data in a single API request

  • Reverse Geocodes Input latitude and longitude and receive possible addresses

  • 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

Address Verification API Pricing

Pricing and Rate-Limit info.

$0 /mo

  • 300Requests/month

$20 /mo

  • 1,000Requests/month

$55 /mo

  • 10,000Requests/month

$180 /mo

  • 50,000Requests/month

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