Hangar MCP Server

The policy enforcement plane for MCP -- deterministic admission and egress policy, attributable audit, and SIEM export for your MCP server fleet. MIT, self-hosted, no SaaS. It runs locally over stdio via the published package.

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 14 · #42 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25

MIT · Python servers · how we verify → /methodology

01 · Install Hangar

Claude Code

claude mcp add mcp-hangar-mcp-hangar -- uvx mcp-hangar

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "mcp-hangar-mcp-hangar": {
      "command": "uvx",
      "args": [
        "mcp-hangar"
      ]
    }
  }
}

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 MIT - declared in the repository

pypi package mcp-hangar - check the name against the project README before installing (PyPI has no namespace ownership)

registry vendor namespace io.mcp-hangar - domain-verified with the official MCP registry

03 · What Hangar can do

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

Latest releases

v2.14.1 · 2026-08-24

Fixed · the project page on PyPI told every visitor pip install mcp-hangar · resolves to 2.0.0. The README is baked into the distribution at build time, · so correcting it in the repository does not correct what PyPI…

v2.14.0 · 2026-08-24

Hangar's side of SEP-2243. A tool whose x-mcp-header annotations are invalid · is no longer projected -- a conforming client drops it on arrival, so · advertising it handed out a tool nobody could call -- and a new…

v2.13.1 · 2026-08-24

Fixed · a ui:// resource can now be allowlisted and consented to rather than · only denied. SEP-1865 mandates a human decision before such a resource reaches a · client webview, and the guard stated that mandate while…

04 · Who maintains Hangar

MCP Hangar is maintained by mcp-hangar. It's the only MCP server we track from this author; the repo dates to Dec 2025.

05 · Facts

repository: github.com/mcp-hangar/mcp-hangar
website: https://mcp-hangar.io/
category: other - ranked #42 of 848 actively-maintained other servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-24)
registry: io.mcp-hangar/hangar (active, first published 2026-08-16 · 8 versions)
packages: pypi:mcp-hangar

06 · Hangar FAQ

What is Hangar?

Is Hangar 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 Hangar?

Run `uvx mcp-hangar`. You can also paste the ready-made client config above.

Does Hangar run locally?

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

07 · Alternatives to Hangar

Alternatives to Hangar

Maintained other servers if Hangar isn't the fit.

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