@metamask/device-mcp

Metamask Device MCP by Metamask

MCP server for mobile device interaction - iOS (IDB), Android (ADB), and Appium/BrowserStack

Live Registry Versionv0.5.0Previous: v0.4.2Published 2026-10-19

Stability Grade

C+ (73/100)

90-Day Velocity

7 releases

Moderate cadence

Dependencies

2 direct

NPM manifest

License

(MIT OR Apache-2.0)

Verified on NPM

Recommended Exact Pin: npx -y @metamask/device-mcp@0.5.0

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

Metamask Device MCP (@metamask/device-mcp) is currently at v0.5.0 on NPM (published 2026-10-19), with a 90-day stability score of 73/100 (C+) and HIGH schema drift risk across 7 releases in the past 90 days. Built on MCP SDK (^1.12.1); recent release v0.5.0 (up from v0.4.2) updates Browser Automation MCP tool schemas and transport handling (7 releases in last 90d). Pin exact version v0.5.0 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @metamask/device-mcp@0.5.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Built on MCP SDK (^1.12.1); recent release v0.5.0 (up from v0.4.2) updates Browser Automation MCP tool schemas and transport handling (7 releases in last 90d). Pin exact version v0.5.0 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

tools/listtools/calldevice-mcp

Before (Deprecated / Unpinned Pattern)

"metamask-device-mcp": {
  "command": "npx",
  "args": ["-y", "@metamask/device-mcp@latest"]
}

After (Verified v0.5.0 Pattern)

"metamask-device-mcp": {
  "command": "npx",
  "args": ["-y", "@metamask/device-mcp@0.5.0"]
}

Frequently Asked Questions: @metamask/device-mcp

What is the latest version of @metamask/device-mcp on NPM?

As of 2026-10-24, the latest stable version of @metamask/device-mcp (Metamask Device MCP by Metamask) on NPM is v0.5.0, published on 2026-10-19. It has shipped 7 releases in the last 90 days.

Does @metamask/device-mcp v0.5.0 have breaking changes or MCP schema drift risk?

@metamask/device-mcp currently carries a HIGH schema drift risk rating with a Stability Score of 73/100 (Grade C+). Built on MCP SDK (^1.12.1); recent release v0.5.0 (up from v0.4.2) updates Browser Automation MCP tool schemas and transport handling (7 releases in last 90d). Pin exact version v0.5.0 in .mcp.json to avoid silent parameter drift.

How do I safely pin @metamask/device-mcp in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @metamask/device-mcp@0.5.0` and monitor tools/list, tools/call, device-mcp for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for @metamask/device-mcp

We poll NPM and MetaMask/device-mcp every 30 minutes. Get an email with the exact diff when @metamask/device-mcp ships a breaking release beyond v0.5.0.