Powered by Universal Commerce Protocol

AI Shopping Assistants for Square Merchants

Give your customers a ChatGPT-like experience for shopping. They ask questions, browse products, and checkout—all through natural conversation.

Your Shop on Crumb
What coffee do you recommend?

Great question! Our most popular options are:

☕ Ethiopian Single Origin$18.99
☕ House Blend$12.99

Would you like to add one to your cart?

Everything you need for AI commerce

Connect your Square store in minutes. We handle the AI magic.

Natural Conversations

Customers shop by chatting naturally. Ask about products, get recommendations, compare options.

Square Integration

Your catalog, inventory, and prices sync automatically from Square. No duplicate data entry.

Seamless Checkout

Cart management and secure checkout powered by Square. Customers complete purchases without leaving the chat.

MCP Compatible

Works with Claude, ChatGPT, and any AI that supports Model Context Protocol. Future-proof your commerce.

Your Brand, Your Way

Customize the shopping experience with your branding. Embed on your site or share a direct link.

Secure & Private

Your data stays yours. We never train on your catalog or customer conversations.

Up and running in 5 minutes

No code required. Just connect and go.

1

Connect Square

Authorize Crumb to access your Square catalog. We'll sync your products, categories, and prices.

2

Choose Your URL

Pick a slug like joes-coffee. Your customers will shop at crumb.llc/joes-coffee

3

Start Selling

Share your link or embed on your website. Customers can start chatting and shopping immediately.

Simple, transparent pricing

Only pay when you make money.

Pay As You Go

Perfect for businesses of any size

2.9% + 30¢

per transaction

  • Unlimited products
  • Unlimited conversations
  • Custom branding
  • MCP/UCP API access
  • Analytics dashboard

No credit card required. Only pay on completed sales.

Ready to give your customers an AI shopping experience?

Join merchants who are already using Crumb to boost sales and delight customers.