From e8754fca83104eb939f9081447ba86158624a56c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fran=C3=A7ois=20Beaufort?= Date: Fri, 31 Jul 2026 09:10:12 +0200 Subject: [PATCH 1/5] Add implementation status doc for WebMCP --- implementation-status.md | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 implementation-status.md diff --git a/implementation-status.md b/implementation-status.md new file mode 100644 index 0000000..ed560e9 --- /dev/null +++ b/implementation-status.md @@ -0,0 +1,28 @@ +# Implementation Status + +This document shows the implementation status of WebMCP across different browsers. + +Brave logo Chrome logo Firefox logo Safari logo + +# Brave + +Experimental support is added to [Leo AI chat](https://brave.com/leo/). + +* [Issue 55232](https://github.com/brave/brave-browser/issues/55232) + +# Chrome + +An [Origin Trial](https://developer.chrome.com/blog/ai-webmcp-origin-trial) is live in Chrome 149. + +* [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) + +# Firefox + +* [Mozilla standards-positions](https://github.com/mozilla/standards-positions/issues/1412) +* [Bugzilla entry](https://bugzilla.mozilla.org/show_bug.cgi?id=2018306) + +# Safari + +* [WebKit standards-positions](https://github.com/WebKit/standards-positions/issues/670) From 695236924f73849bcb91f9272dd7d362e6493960 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fran=C3=A7ois=20Beaufort?= Date: Sat, 1 Aug 2026 08:02:58 +0200 Subject: [PATCH 2/5] Apply suggestion from @bwalderman Co-authored-by: Brandon Walderman --- implementation-status.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/implementation-status.md b/implementation-status.md index ed560e9..84de377 100644 --- a/implementation-status.md +++ b/implementation-status.md @@ -18,6 +18,11 @@ An [Origin Trial](https://developer.chrome.com/blog/ai-webmcp-origin-trial) is l * [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) From 0446e263cfeba947587804718b9d02a51a340c7f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fran=C3=A7ois=20Beaufort?= Date: Sat, 1 Aug 2026 08:03:32 +0200 Subject: [PATCH 3/5] Update implementation-status.md --- implementation-status.md | 1 + 1 file changed, 1 insertion(+) diff --git a/implementation-status.md b/implementation-status.md index 84de377..81d9a41 100644 --- a/implementation-status.md +++ b/implementation-status.md @@ -23,6 +23,7 @@ An [Origin Trial](https://developer.chrome.com/blog/ai-webmcp-origin-trial) is l 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) From eeca447bfab1cae997e529179d5c1bcbf04eedad Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fran=C3=A7ois=20Beaufort?= Date: Sun, 2 Aug 2026 10:36:07 +0200 Subject: [PATCH 4/5] Update implementation-status.md Co-authored-by: Victor Huang --- implementation-status.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/implementation-status.md b/implementation-status.md index 81d9a41..652e140 100644 --- a/implementation-status.md +++ b/implementation-status.md @@ -2,7 +2,7 @@ This document shows the implementation status of WebMCP across different browsers. -Brave logo Chrome logo Firefox logo Safari logo +Brave logo Chrome logo Edge logo Firefox logo Safari logo # Brave From a97bf8c12d52ad4e052847c3b0c2d9ecabc43423 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fran=C3=A7ois=20Beaufort?= Date: Thu, 6 Aug 2026 20:58:45 +0200 Subject: [PATCH 5/5] Add link in explainer --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c26257d..06dee93 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,7 @@ WebMCP lets developers expose web application functionality—either JavaScript TypeScript type definitions for WebMCP are available in the [`webmcp-types`](https://www.npmjs.com/package/webmcp-types) npm package. +See [Implementation Status](implementation-status.md) for browser support. ## Background and Motivation