Rustunnel MCP Server

The open-source tunnel that scales with you. Don't pay for idle time. Secure, Rust-fast, and Pay-as-you-go. Its 6 documented tools cluster into read & search, create & write, close.

People who work with api gateway, reverse proxy and rustunnel and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Rust.

VERIFIED ACTIVE

LAST COMMIT 2026-09-03 · ★ 656 · #101 OF 227 MAINTAINED AUTOMATION · VERIFIED 2026-09-18

AGPL-3.0 · Rust servers · how we verify → /methodology

01 · Install Rustunnel

before you install - you'll need

Set RUSTUNNEL_TOKEN, TEST_DATABASE_URL before connecting.

Docker

docker run -i --rm ghcr.io/joaoh82/rustunnel-mcp:0.8.5

Claude Desktop - add to config

{
  "mcpServers": {
    "joaoh82-rustunnel": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/joaoh82/rustunnel-mcp:0.8.5"
      ]
    }
  }
}
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 container (OCI image) - can be sandboxed away from your filesystem · Claude Desktop extension (.mcpb bundle)

license AGPL-3.0 - declared in the repository

registry namespace io.github.joaoh82 is GitHub-verified and matches the repo owner

03 · What Rustunnel can do

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

What you can build

With this server connected, an agent can open a tunnel and return the public URL - HTTP/TCP/UDP, P2P, and load-balanced pools with health checks, list all active tunnels, list available server regions, and read the CLI command for cloud/sandbox agents.

Capability map

Tools grouped from the project's README - what Rustunnel lets an agent do.

read & search

4 tools - e.g. List all active tunnels; List available server regions; Return the CLI command for cloud/sandbox agents

list_tunnels · list_regions · get_connection_info · get_tunnel_history

create & write

1 tool - e.g. Open a tunnel and return the public URL - HTTP/TCP/UDP, P2P, and load-balanced pools with health checks

create_tunnel

Close

1 tool - e.g. Force-close a tunnel by ID

close_tunnel

Latest releases

v0.8.5 · 2026-09-03

Security · Constant-time admin_token comparison + failed-auth throttle (CWE-208). The server-wide admin token was compared with plain string equality on the dashboard API and the control-plane Auth handshake, an…

v0.8.4 · 2026-07-26

derive effective plan, record churn, add webhook idempotency

v0.8.3 · 2026-07-23

full-screen terminal UI and local request inspector (TUNNEL-33) · bump version to 0.8.3

04 · Who maintains Rustunnel

rustunnel is maintained by joaoh82. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository
github.com/joaoh82/rustunnel
website
https://rustunnel.com/
category
automation - ranked #101 of 227 actively-maintained automation servers as of 2026-09-18.
release cadence
4 releases in the last 90 days (latest 2026-09-03)
registry
io.github.joaoh82/rustunnel (active, first published 2026-06-10 · 5 versions)
packages
mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.5/rustunnel-mcp-aarch64-apple-darwin.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.5/rustunnel-mcp-aarch64-unknown-linux-gnu.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.5/rustunnel-mcp-x86_64-apple-darwin.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.5/rustunnel-mcp-x86_64-pc-windows-msvc.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.5/rustunnel-mcp-x86_64-unknown-linux-musl.mcpb · oci:ghcr.io/joaoh82/rustunnel-mcp:0.8.5

06 · Rustunnel FAQ

Is Rustunnel still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-03 and it shipped 4 releases in the last 90 days. We re-verify nightly.

What can Rustunnel do?

With this server connected, an agent can open a tunnel and return the public URL - HTTP/TCP/UDP, P2P, and load-balanced pools with health checks, list all active tunnels, list available server regions, and read the CLI command for cloud/sandbox agents.

How do I install Rustunnel?

Run `docker run -i --rm ghcr.io/joaoh82/rustunnel-mcp:0.8.5`. The README documents 2 environment variables (RUSTUNNEL_TOKEN, TEST_DATABASE_URL) to set first. Set RUSTUNNEL_TOKEN, TEST_DATABASE_URL before connecting. You can also paste the ready-made client config above.

07 · Alternatives to Rustunnel

Alternatives to Rustunnel

Maintained automation servers if Rustunnel isn't the fit.

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  4. Claude Code Ultimate Guide Search the Claude Code Ultimate Guide and machine-readable references from any MCP client. ★ 5,990 · 2026-09-17
  5. Ha MCP Comprehensive Model Context Protocol server for managing Home Assistant through AI assistants. ★ 4,770 · 2026-09-18
  6. Stripe Agent Toolkit MCP server integrating with Stripe - tools for customers, products, payments, and more. ★ 1,822 · 2026-09-17

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