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 need automation tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in Rust.

VERIFIED ACTIVE

LAST COMMIT 2026-07-31 · ★ 650 · #95 OF 194 MAINTAINED AUTOMATION · VERIFIED 2026-08-25

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:0.8.4

Claude Desktop - add to config

{
  "mcpServers": {
    "joaoh82-rustunnel": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/joaoh82/rustunnel-mcp:0.8.4"
      ]
    }
  }
}
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

v0.8.4 · 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

v0.8.2 · 2026-07-22

Glama ownership + ghcr MCP image + oci registry package · Fix publish-mcp-image: don't check out the tag being built · rustunnel-mcp: read server/api/insecure from env vars · Add Cursor/Open Plugins listing assets…

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

category
automation - ranked #95 of 194 actively-maintained automation servers as of 2026-08-25.
release cadence
5 releases in the last 90 days (latest 2026-07-26)
registry
io.github.joaoh82/rustunnel (active, first published 2026-06-10 · 4 versions)
packages
mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.4/rustunnel-mcp-aarch64-apple-darwin.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.4/rustunnel-mcp-aarch64-unknown-linux-gnu.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.4/rustunnel-mcp-x86_64-apple-darwin.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.4/rustunnel-mcp-x86_64-pc-windows-msvc.mcpb · mcpb:https://github.com/joaoh82/rustunnel/releases/download/v0.8.4/rustunnel-mcp-x86_64-unknown-linux-musl.mcpb · oci:ghcr.io/joaoh82/rustunnel-mcp:0.8.4

06 · Rustunnel FAQ

Is Rustunnel still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-31 and it shipped 5 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:0.8.4`. 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