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Ric Ruben
Ric Ruben

Posted on Originally published at byfaro.ai

What Is WebMCP? The Protocol Deciding Whether AI Agents Can Use Your Website

WebMCP is a browser-native protocol co-developed by Google and Microsoft that lets websites declare callable functions for AI agents, replacing fragile DOM scraping with structured tool calls. With an origin trial live in Chrome 149 and the Lighthouse Agentic Browsing category now shipping by default, there are concrete things to audit and fix on your site right now.


This article was originally published on byfaro.ai/blog/what-is-webmcp. Read the full guide there — it includes step-by-step examples and Faro audit tool links.

What you'll learn

This guide covers the full picture on what is webmcp? the protocol deciding whether ai agents can use your website, including:

  • Why this matters for AI agent discoverability
  • What to check on your own site
  • The specific fixes that move your score

Read the complete guide →


Faro audits whether AI agents can find, understand, and act on your business — like GTMetrix but for AI discoverability. Free scan at byfaro.ai.

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