---
title: "WebMCP | WebMCP navigator modelContext browser tools | Agent-Ready Check"
description: "WebMCP lets a page expose tools to an agent running in the browser, with the user present and in control. Pass criteria: Page code registers browser-side tools through navigator.modelContext."
locale: en
canonical: https://agent-ready.t0ols.com/checks/webmcp/
---

# WebMCP

> Category: API, Auth, MCP & Skill Discovery

WebMCP lets a page expose tools to an agent running in the browser, with the user present and in control.

## Why it matters

It is the middle ground between scraping and a server-side API: your existing UI becomes tool calls.

## Pass criteria

Page code registers browser-side tools through navigator.modelContext.

## How to implement it

Goal: Support WebMCP to expose site tools to AI agents via the browser

Page code registers browser-side tools through navigator.modelContext.

The step-by-step implementation prompt is part of the paid tier. The free layer gives you the diagnosis, the evidence and the specification links.

Specifications: https://webmcp.org/, https://github.com/webmachinelearning/webmcp
Implementation notes: https://agent-ready.t0ols.com/.well-known/agent-skills/webmcp/SKILL.md