DevTool MCP

Give your AI coding agent browser superpowers. agnt is a new kind of tool designed for the age of AI-assisted development. It acts as a bridge between your AI coding agent and the browser, extending what's possible during vibe coding sessions. It runs locally over stdio via the published package.

People connecting browser automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-08-20 · ★ 19 · #87 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

Apache-2.0 · Go servers · how we verify → /methodology

01 · Install DevTool MCP

Claude Code

claude mcp add standardbeagle-devtool-mcp -- npx -y @standardbeagle/devtool-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "standardbeagle-devtool-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@standardbeagle/devtool-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

npm package @standardbeagle/devtool-mcp - published under the repo owner's npm scope (@standardbeagle)

registry namespace io.github.standardbeagle is GitHub-verified and matches the repo owner

03 · What DevTool MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.15.4 · 2026-08-07

v0.15.3 · 2026-08-07

v0.15.0 · 2026-08-05

04 · Who maintains DevTool MCP

DevTool MCP is maintained by standardbeagle. We track 3 MCP servers from standardbeagle - 3 actively maintained, 19 combined GitHub stars, oldest repo from Jul 2025.

05 · Facts

repository: github.com/standardbeagle/devtool-mcp
website: https://standardbeagle.github.io/devtool-mcp/
category: browser automation - ranked #87 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-07)
registry: io.github.standardbeagle/devtool-mcp (active, first published 2025-12-08)
packages: npm:@standardbeagle/devtool-mcp · pypi:devtool-mcp

06 · DevTool MCP FAQ

What is DevTool MCP?

Is DevTool MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-20 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install DevTool MCP?

Run `npx -y @standardbeagle/devtool-mcp`. You can also paste the ready-made client config above.

Does DevTool MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to DevTool MCP

Alternatives to DevTool MCP

Maintained browser automation servers if DevTool MCP isn't the fit.

Pairs well with

Servers that cover what DevTool MCP doesn't - only shown when the pairing reason fits the companion.

More browser automation MCP servers · Gdocs Comments MCP · Metro MCP · StudioMeyer Video · HTML to Markdown MCP Server · Sv Grid

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