Stop opening dozens of auction websites.

NUMIS_SYSTEM brings hundreds of numismatic sources into one place — helping you find coins faster, compare offers and discover opportunities you might otherwise miss.

Everything a Coin Collector Needs

🌍 Hundreds of Numismatic Sources

Access a large database of auction houses, numismatic shops, archives and collector communities from around the world — organized in one convenient interface.

🔎 Global Search

Search multiple numismatic websites at once instead of opening them one by one.

⚡ Advanced Coin Search

Use ready-made, precise search queries for many types of coins, including thalers, ducats, groschen and more.

🪙 Bullion Calculator

Check the value of the precious metal contained in silver and gold coins using live NBP rates.

📚 Your Private Collection

Keep track of your coins and collection directly in your browser.

Your collection and notes remain on your device.

🤖 AI Coin Identification

Upload a photo of a coin and get AI-assisted help identifying its type and year.

💬 Collector Chat

Connect and chat with other collectors and numismatic enthusiasts.

🌐 11 Languages

Use NUMIS_SYSTEM in 11 languages.

Your Numismatic Hub

Instead of managing dozens of browser tabs and remembering countless auction websites, keep your numismatic searches, sources and tools in one place.

Search faster. Compare more. Discover more.

Privacy First

Your collection and notes remain exclusively on your device.

We do not collect or sell your personal collection data.

How It Works

1. Install NUMIS_SYSTEM

The Chrome extension is free to install.

2. Choose your access plan

Select 7 days, 1 month, 3 months or 1 year.

3. Activate your license online

Your full access is activated using your email address — no license key to type manually.

4. Start collecting smarter

Search, discover and manage your numismatic sources from one place.

Free to Install

NUMIS_SYSTEM is free to install.

A license is required for full access to the complete functionality.

Choose the access period that works best for you.

Find more coins. Search smarter. Miss fewer opportunities.

NUMIS_SYSTEM — The Numismatic Toolkit