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Synapse RMCP MCP Server

local only

Synapse RMCP runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 10 Sep 2026.

Rust MCP and CLI server for Docker, host inspection, SSH, logs, ZFS, and safe file operations.

Installs per day peak 289 · avg 38 · -34% w/w
a month agotoday
Installs / week
npm · synapse-rmcp
2
Stars
1 open issues
10 Sep 2026
Last commit
0 releases in 90 days
AGPL-3.0
License
Rust

What changed 41

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 August 2026. No other catalogue keeps this.

18 Sep the owner changed
17 Sep the owner changed
16 Sep the owner changed
15 Sep the owner changed
14 Sep the owner changed
13 Sep the owner changed
12 Sep the owner changed
11 Sep the owner changed
10 Sep the owner changed
9 Sep the owner changed
and 31 more, back to 9 August 2026

Nothing serious here today

Today is the operative word: we check Synapse RMCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add synapse-rmcp -- npx -y synapse-rmcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "synapse-rmcp": {
      "args": [
        "-y",
        "synapse-rmcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.synapse-rmcp]
command = "npx"
args = ["-y", "synapse-rmcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "synapse-rmcp": {
      "args": [
        "-y",
        "synapse-rmcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "synapse-rmcp": {
      "args": [
        "-y",
        "synapse-rmcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: SYNAPSE_HOME (Optional Synapse appdata directory.), SYNAPSE_HOSTS_CONFIG (Inline host topology as a JSON array.), SYNAPSE_CONFIG_FILE (Path to a host configuration file.), SYNAPSE_RMCP_VERSION (Optional GitHub release tag override for the downloaded Synapse binary.), SYNAPSE_RMCP_REPO (Optional GitHub owner/repo override for release asset downloads.), SYNAPSE_RMCP_RELEASE_BASE_URL (Optional release download base URL override.), RUST_LOG (Tracing filter for Synapse logs.). The author declared them in the registry entry; get the values from the project itself.

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Synapse RMCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Synapse RMCP?
Synapse RMCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package synapse-rmcp.
How do I connect Synapse RMCP?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls synapse-rmcp straight from npm; nothing to host, nothing to sign up for.
Is Synapse RMCP open source?
Yes — it is published under the AGPL-3.0 licence, written in Rust, 2 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.