PayPal tests WebMCP checkout path that cuts agent steps from 30-plus to three

PayPal says a sandbox test of WebMCP let an AI assistant complete a gift-card checkout with three structured tool calls instead of more than 30 interface-interaction steps, making the median end-to-end checkout roughly twice as fast and about 4.6 times less costly in model-inference usage. The company is extending WebMCP support through the PayPal JavaScript SDK for Store Sync merchants, positioning the work as a way for existing storefronts to become easier for AI shopping assistants to use while keeping final payment approval inside PayPal's checkout flow.