Developer Preview

Agent-Ready Tools Preview

We're experimenting with WebMCP-style structured tool interfaces so AI agents can interact with tools more reliably than brittle DOM automation.

5 demo tools — experimental browser feature

Try the Playground
WebMCP is an early-stage W3C Community Group effort. Browser support is experimental and subject to change.

Interactive Playground

See the WebMCP flow step by step, or try it yourself

Select a Tool

Formats, validates, and prettifies JSON strings with configurable indentation

Try an example

Invocation Flow

1
Tool Discovery
2
Schema Inspection
3
Agent Invocation
4
Tool Execution
5
Result Returned

Available Tools

Demo tools registered via the WebMCP polyfill

Format Json

Instant

Formats, validates, and prettifies JSON strings with configurable indentation

Base64 Encode Decode

Instant

Encodes text to Base64 or decodes Base64 to text

Analyze Text

Instant

Analyzes text and returns character count, word count, sentence count, reading time, and readability score

Decode Jwt

Instant

Decodes a JWT token and returns its header and payload without verifying the signature

Html Encode Decode

Instant

Encodes special characters to HTML entities or decodes HTML entities to characters

How It Works

Understanding the WebMCP approach

What is WebMCP?

WebMCP is an emerging effort from a W3C Community Group, with contributions from Google and Microsoft. It lets websites expose structured tools to AI agents. Instead of scraping the DOM or guessing how forms work, a site can describe what it offers, how to call it, and what it returns.

Why It Matters

Traditional web automation is brittle. Agents parse pixels, guess at button meanings, and break when layouts change. WebMCP fixes this with a schema-driven protocol. Each tool has a name, description, typed input schema, and structured output. Agents discover what's available and call it directly.

The Flow

AI Agent
navigator.modelContext
Tool Handler
Structured Result

The agent discovers tools registered on the page, inspects their schemas, calls the right tool with structured arguments, and gets back a typed result. No DOM interaction needed.

Learn More

WebMCP is in early preview, available in Chrome Canary behind a feature flag. The specification is a Draft Community Group Report undergoing W3C incubation — it is not yet a finalized cross-browser standard.

W3C Draft Report Chrome Blog
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