# Browser and Agent Implementation Status

This document shows the implementation status of WebMCP across different browsers and agents.

<a href="#brave"><img width=64 src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/brave/brave_128x128.png" alt="Brave logo"></a> <a href="#chatgpt-desktop"><picture><source media="(prefers-color-scheme: dark)" srcset="assets/openai-white.svg"><source media="(prefers-color-scheme: light)" srcset="assets/openai.svg"><img width=64 src="assets/openai.svg" alt="OpenAI logo"></picture></a> <a href="#chrome"><img width=64 src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_128x128.png" alt="Chrome logo"></a> <a href="#edge"><img width=64 src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_128x128.png" alt="Edge logo"></a> <a href="#firefox"><img width=64 src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_128x128.png" alt="Firefox logo"></a> <a href="#meta-ray-ban-display"><img width=64 src="assets/meta.svg" alt="Meta logo"></a> <a href="#safari"><img width=64 src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_128x128.png" alt="Safari logo"></a>

# Brave

Experimental support is added to [Leo AI chat](https://brave.com/leo/).

* [Issue 55232](https://github.com/brave/brave-browser/issues/55232)

# ChatGPT Desktop

WebMCP is supported in [ChatGPT Desktop](https://chatgpt.com/download/).

# Chrome

An [Origin Trial](https://developer.chrome.com/blog/ai-webmcp-origin-trial) is live in Chrome 149.

For [local development](https://developer.chrome.com/docs/ai/webmcp#local_webmcp), enable the `about:flags#enable-webmcp-testing` flag.

* [Early preview program](https://developer.chrome.com/docs/ai/join-epp)
* [Intent to Experiment](https://groups.google.com/a/chromium.org/g/blink-dev/c/gmYffo5WOE8/m/OJxuQRP3AAAJ)
* [Chrome Status entry](https://chromestatus.com/feature/5117755740913664)

# Edge

An [Origin Trial](https://developer.microsoft.com/en-us/microsoft-edge/origin-trials/trials/0b76fe60-b266-458e-a285-04e375c0c31a) is live in Edge 150.

Refer to Chrome implementation status for platform support.

# Firefox

* [Mozilla standards-positions](https://github.com/mozilla/standards-positions/issues/1412)
* [Bugzilla entry](https://bugzilla.mozilla.org/show_bug.cgi?id=2018306)

# Meta Ray-Ban Display

WebMCP for [Web Apps](https://wearables.developer.meta.com/docs/develop/webapps/agent-tools) is coming soon, letting Meta AI on the glasses call tools registered with `document.modelContext.registerTool()`.

It is off by default and enabled per device, either in Developer Mode or for wearers in the rollout.

# Safari

* [WebKit standards-positions](https://github.com/WebKit/standards-positions/issues/670)