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Ranking in AI search only gets an agent to your site. WebMCP is the emerging browser-native standard that lets it click, fill, and submit once it's there. Check three signals in seconds.
Read vs. act
MCP connects an AI backend to your server. WebMCP connects an AI agent to your browser page, while a human is still there.
Three checks, no fluff
Tool manifest, llms.txt, and whether your buttons and inputs expose the accessible names an agent needs to click and fill them.
This is a first pass
A full Lighthouse Agentic Browsing score also checks accessibility tree depth and layout shift — this tool is the fast, honest version of that.
What WebMCP is, how it differs from MCP, and what to fix first.