theSHOWBASE Importer
Sync your MLB The Show 25 card collection with TheShowBase for advanced collection tracking, team building, and market insights.
Add to Chrome - It's Free
Key Features
• One-Click Sync
Import your entire inventory in seconds
• Secure Authentication
Sign in with Google through TheShowBase
• Real-Time Progress
Track import status with live updates
• 100% Secure
No MLB credentials stored
• Privacy First
Only syncs card data, no personal information
How It Works
Sign in with your TheShowBase account
Use Google OAuth for secure authentication
Open the Extension
Click the extension icon in your Chrome toolbar
Click "Import Player Data"
One click starts the automatic sync process
Your collection syncs automatically
Watch real-time progress as cards are imported
Privacy & Security
What We Protect
- Uses official MLB The Show API
- Encrypted HTTPS connections only
- Google OAuth authentication
- Your data is private and secure
What We Don't Collect
- MLB passwords or credentials
- Personal information beyond OAuth
- Gameplay data or statistics
- Browser history or activity
Use Your Data on TheShowBase
Once imported, your collection data powers advanced features across TheShowBase:
My Club Dashboard
View your entire collection, track total value, see top players, and identify duplicates to sell
My Players
Search and filter your inventory with advanced filters the in-game binder doesn't have
Collection TrackingComing Soon
See exactly which cards you're missing for each collection and how much they cost
Personalized Market InsightsComing Soon
Get investment recommendations based on your current collection and market trends
Requirements
TheShowBase Account
Free sign up with Google
MLB The Show 25 Account
Active game account required
Chrome Browser
Google Chrome or Chromium-based
Ready to Track Your Collection?
Join thousands of MLB The Show players using theSHOWBASE to manage their Diamond Dynasty collections.
Install Chrome Extension NowFree forever • No credit card required • Takes 30 seconds to setup
Need Help or Have Feedback?
We're here to help! Whether you're experiencing issues, found a bug, or just want to share feedback, our community and support team are ready to assist.
Why Use the theSHOWBASE Chrome Extension?
The theSHOWBASE Importer Chrome Extension eliminates manual inventory tracking for MLB The Show 25 Diamond Dynasty players. Instead of maintaining spreadsheets or trying to remember which cards you own, our extension automatically syncs your entire collection in seconds using the official MLB The Show API. With one click, your inventory is securely uploaded to your TheShowBase account, giving you instant access to advanced collection management tools.
Security and privacy are our top priorities. The extension uses Google OAuth authentication—no MLB passwords are ever stored or transmitted. All data transfers use encrypted HTTPS connections, and we only collect card UUIDs and quantities. Your MLB credentials stay with Sony's official authentication system. The extension is open source, regularly audited, and follows Chrome Web Store security best practices.
Once your collection is imported, you unlock powerful features: My Club dashboard shows total collection value with real-time marketplace prices updated every 30 minutes, My Players gives you instant search and advanced filters the in-game binder lacks, and upcoming features will track completion percentages for Collections and Programs while showing exactly which cards you're missing with current costs. Perfect for competitive players building meta squads, collectors completing sets, and stub-conscious players avoiding duplicate purchases.