Google Chrome
origin_trial
Chrome documents WebMCP as an early preview / origin-trial capability with imperative and declarative APIs.
chrome://flags/#enable-webmcp-testing · origin trial from Chrome 149
Checked 2026-08-17 · Evidence
WebMCP ecosystem & compatibility
Evidence-based status for browsers, agents, and frameworks. Every claim has a checked date — compatibility changes quickly.
browsers
Microsoft Edge
planned
Microsoft co-authors the WebMCP effort; watch Edge release notes for shipping status.
Checked 2026-08-17 · Evidence
agents
Model Context Tool Inspector
supported
Chrome-documented inspector for listing, calling, and validating WebMCP tools on a page.
Chrome extension
Checked 2026-08-17 · Evidence
frameworks
W3C WebMCP draft
partial
Incubation under the W3C Web Machine Learning community group.
Community Group draft
Checked 2026-08-17 · Evidence