# Shopfront > Independent makers' shops that AI shopping agents can buy from. One MCP endpoint covers every seller; payment is approved by the human in PayPal. ## How an agent buys - MCP endpoint (Streamable HTTP): https://shopfront-agent.onrender.com/mcp - Tools: search_products, get_product, create_checkout (variant ids and quantities only), get_checkout_status, request_refund. - Prices and totals are set by the server from the seller's catalog. Give the returned pay_url to the human; they approve in PayPal. - Sandbox demo: no real money moves. ## Shops - [Fern & Loom](https://shopfront-agent.onrender.com/s/fern_and_loom): Hand-dyed linens woven in small batches. (4 listed) - [Juniper Clay Studio](https://shopfront-agent.onrender.com/s/juniper_clay): Wheel-thrown stoneware from a one-person studio. Every glaze is mixed by hand. (7 listed)