Supra Web 140 Rgb

Supra Lockbox System

MLS PIN in partnership with Supra is pleased to provide its customers with the choice of an electronic alternative to mechanical lockboxes.

The Right Choice

Real estate professionals know that working with MLS PIN is the fastest way to find the perfect properties for their buyers. They also understand how easy it is to show those properties and track activity using the networked electronic KeyBox system from Supra.

Supra System Introduction

Supra New Agent Orientation

Supra FAQs

Supra 2023 Highlights


800-695-3000, option 3

Walk-in service available between 9:00 a.m. and 4:00 p.m., Monday – Friday for the following:

Electronic Keys
  • Leasing the eKEY App
  • Cancellation of the Key
  • PIN Codes
  • Authorization Codes
Electronic Lockboxes
  • Purchasing a New Lockbox
  • Replacing a Defective Lockbox
  • Locksmith Service
  • Shackle Codes
  • CBS Codes
  • Mail Order Lockbox Purchases



Supra support is available seven days a week from 8:00 a.m. until 10:00 p.m. for the following:

  • Technical Assistance
  • Error Code Assistance
  • Defective Replacement Keys
  • Emergency Update Codes
  • Billing Questions
  • Payments Over the Phone

You can also visit for online assistance

Are you already a Supra eKEY App Keyholder and want to learn more about all the tools and features the eKEY App provides you? Click here to register for live webinar training with Supra, view recorded videos and much more!

Your Local Associations

Your local associations are available for the following:

Electronic Keys
  • Leasing the eKEY App
Electronic Lockboxes
  • Purchasing a New Lockbox (checks or money orders only)
  • Replacing a Defective Lockbox

Please call for specific hours:

  • Greater Boston Real Estate Board
    68 Main Street, Reading, MA
  • North Shore Association of REALTORS®
    398 Essex Street, Beverly, MA
  • North Central Massachusetts Association of REALTORS®
    40 Summer Street, Fitchburg, MA
  • REALTOR® Association of Pioneer Valley
    221 Industry Avenue, Springfield, MA
  • Northeast Association of REALTORS®
    6 Lyberty Way, Suite 204, Westford, MA
  • REALTOR® Association of Central Massachusetts
    32 Coolidge Street, Auburn, MA