What Web MCP is
Web MCP is the application of the MCP protocol to the web. Sites and web services give AI agents standardised access to their content and actions through MCP, instead of leaving the agent to read a page that was laid out for a person. The same label covers web search MCP — a single web search interface for an agent.
Why it is needed
Scraping: the agent parses HTML -> brittle, breaks on any restyle
Web MCP: the agent calls a standard interface -> reliable and versionable
The agent receives programmatic access rather than a raw page: find a product, compare options, add to the basket — predictably, and with no dependency on the markup. That matters because a retailer redesigns a category page far more often than it changes an API contract, and every redesign would otherwise break every agent reading the site.
The link to agentic commerce
Web MCP is part of the infrastructure of agentic commerce: for AI agents to buy on a user’s behalf, they need reliable access to store catalogues. It works together with agentic purchase protocols — YCP (Yandex Commerce Protocol) among them — and with the interactive UI layer, MCP Apps.