Merchants

Shopify

Storefront, Customer Account, Checkout, and Dev MCP servers plus ACP and UCP support across millions of merchants

• commerce
• storefront
• acp
• +4 more
• +3 more

Square

Catalog, orders, and payments APIs for merchants, with a remote MCP server

• commerce
• payments
• orders
• +3 more
• +2 more

Etsy

Marketplace of handmade and vintage goods, an early agentic-checkout partner and UCP collaborator

• marketplace
• acp
• ucp
• +2 more
• +1 more