AI assistants

Connect Claude, ChatGPT or another AI assistant to your CardNexus account, then ask it in plain words to find cards, build a cart or run your shop.

Add this address to your assistant, then sign in to CardNexus when it asks:

https://mcp.cardnexus.com/mcp

Step-by-step setup for each assistant: Connect an assistant.

What you can ask

Buying

• "Find the cheapest Near Mint Charizard ex from 151 that ships to the US."
• "Here is my decklist. Build me the cheapest cart for it."
• "How has the price of this card moved over the last year?"
• "Offer $250 for that listing."
• "Has my last order shipped?"

Selling

• "Add these cards to my inventory."
• "What is my inventory worth, and how has its value changed this month?"
• "Which of my listings are priced above the market?"
• "Reprice my Pokémon listings to the market price, but never below $1." The assistant shows you the changes before it applies them, and you can undo a reprice within 7 days.
• "Which sales still need to ship? Mark today's as shipped."
• "Tell the buyer of my last order that it ships tomorrow."
• "Put my shop on vacation."

Price checks and repricing are not available to every seller.

In Claude and ChatGPT, results show as cards with card images, prices and an add-to-cart button. Other assistants answer in text.

What it cannot do

• Pay. The assistant fills your cart; you check out on cardnexus.com.
• Go beyond what you allowed. When you connect, you choose for each area (cart, offers, inventory, sales, messages and so on) whether the assistant can see it, change it, or neither.

You can disconnect an assistant at any time in Settings, Integrations on cardnexus.com.

Related

• Connect an assistant
• Tools: every action the assistant can take, and the permission it needs