Helmdeck MCP Server

A self-hosted, containerized platform for AI agents, exposed as Capability Packs - schema-validated, one-shot JSON tools - and native MCP. The defining metric is ≥90% pack success on 7B–30B-class open-weight models, something no frontier-targeting competitor is optimizing for. 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 2026-08-24 · ★ 4 · #79 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

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

01 · Install Helmdeck

before you install - you'll need

Set HELMDECK_JWT_SECRET, HELMDECK_VAULT_KEY, HELMDECK_ADMIN_PASSWORD before connecting.

Claude Code

claude mcp add tosin2013-helmdeck -- npx -y @helmdeck/mcp-bridge

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "tosin2013-helmdeck": {
      "command": "npx",
      "args": [
        "-y",
        "@helmdeck/mcp-bridge"
      ]
    }
  }
}

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 · container (OCI image) - can be sandboxed away from your filesystem

license Apache-2.0 - declared in the repository

npm package @helmdeck/mcp-bridge - the @helmdeck scope differs from the repo owner (tosin2013); confirm it's the project's official package

registry namespace io.github.tosin2013 is GitHub-verified and matches the repo owner

03 · What Helmdeck can do

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

Latest releases

v0.29.10 · 2026-06-22

findings extraction now captures handler output on error path (#576) (@tosin2013) · error-path findings extraction - prep CHANGELOG (#577) (@tosin2013)

v0.29.9 · 2026-06-22

draft - the agent that learns from its own lint errors (#574) (@tosin2013) · memory caller selector - admin observability of agent callers (#569) (#571) (@tosin2013) · findings-prefix prompt injection - #570 slice 4…

v0.29.8 · 2026-06-22

pin SessionSpec to hyperframes sidecar - fixes exit 127 (#567) (@tosin2013) · validation-suite sidecar pin hot-fix - prep CHANGELOG (#568) (@tosin2013)

04 · Who maintains Helmdeck

Helmdeck is maintained by tosin2013. We track 2 MCP servers from tosin2013 - 2 actively maintained, 37 combined GitHub stars, oldest repo from Jul 2025. Full record: all servers from tosin2013.

mcp-adr-analysis-server AI-powered MCP server for analyzing Architectural Decision Records (ADRs). ★ 33

05 · Facts

repository: github.com/tosin2013/helmdeck
website: https://helmdeck.dev/
category: browser automation - ranked #79 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-06-22)
registry: io.github.tosin2013/helmdeck (active, first published 2026-05-09 · 41 versions)
packages: npm:@helmdeck/mcp-bridge · oci:ghcr.io/tosin2013/helmdeck-mcp:0.29.10

06 · Helmdeck FAQ

What is Helmdeck?

Is Helmdeck still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Helmdeck?

Run `npx -y @helmdeck/mcp-bridge`. The README documents 3 environment variables (HELMDECK_JWT_SECRET, HELMDECK_VAULT_KEY, HELMDECK_ADMIN_PASSWORD) to set first. Set HELMDECK_JWT_SECRET, HELMDECK_VAULT_KEY, HELMDECK_ADMIN_PASSWORD before connecting. You can also paste the ready-made client config above.

Does Helmdeck 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 Helmdeck

Alternatives to Helmdeck

Maintained browser automation servers if Helmdeck isn't the fit.

Pairs well with

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

More browser automation MCP servers · Lystbot · Brave DevTools MCP · Vibatchium · KeyShot MCP · Trusty Squire

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