Runtime Cloud MCP Server

What the code does

We read the source, 1 h ago · rules 995398eba69f

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

        started = await self._sandbox._resuming(lambda box: box.spawn(

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

          'mkdir -p -- "$(dirname -- "$1")" && rm -rf -- "$1"',

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.

    const process = await this.sandbox.spawn(options.command, {

        candidates = ([os.path.join(root, dockerfile) + ".dockerignore"] if dockerfile else []) + [

    async def exec(self, cmd: list[str], input: Union[str, bytes, None] = None, cwd: Optional[str] = None,

#   puts sbx.exec("python3 /workspace/invoice.py", check: true).stdout

                                      it to ~/.ssh/config

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

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

claude mcp add runtime --transport http https://api.withruntime.com/mcp

https://api.withruntime.com/mcp

[mcp_servers.runtime]
url = "https://api.withruntime.com/mcp"

{
  "mcpServers": {
    "runtime": {
      "url": "https://api.withruntime.com/mcp"
    }
  }
}

{
  "servers": {
    "runtime": {
      "type": "http",
      "url": "https://api.withruntime.com/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints