Synapse RMCP MCP Server

What the code does

We read the source, 9 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

postinstall: node scripts/install.js

  const install = spawnSync(process.execPath, [installer], { stdio: "inherit" });

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

    if std::path::Path::new("/.dockerenv").exists()

        credentials_file="$HOME/.aws/credentials"

            -v /var/run/docker.sock:/var/run/docker.sock \

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

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.

claude mcp add synapse -- npx -y @dinglebear/synapse

{
  "mcpServers": {
    "synapse": {
      "args": [
        "-y",
        "@dinglebear/synapse"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.synapse]
command = "npx"
args = ["-y", "@dinglebear/synapse"]

{
  "mcpServers": {
    "synapse": {
      "args": [
        "-y",
        "@dinglebear/synapse"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "synapse": {
      "args": [
        "-y",
        "@dinglebear/synapse"
      ],
      "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.