Runtime Cloud MCP server

Runtime Cloud is the official remote MCP server from withruntime.com. It answers at https://api.withruntime.com/mcp over streamable HTTP and asks you to sign in with your withruntime.com account before it lists its tools, so your client opens a login the first time it connects. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 7 November 2026, got the sign-in challenge, so it is up.

Linux microVM sandboxes for AI agents: run commands, files, processes, pause and wake.

Description as the publisher wrote it.

What Runtime Cloud needs before it works

A sign-in. The server refused to list its tools to an anonymous client and answered with an authentication challenge, which is how an MCP server protected by OAuth behaves. Add it with one of the setups below; the first connection opens a login for your withruntime.com account, and the tools appear once you have approved it.

Add Runtime Cloud to your AI client

Every block below points at https://api.withruntime.com/mcp. Pick your client and copy.

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

{
  "mcpServers": {
    "runtime-cloud": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://api.withruntime.com/mcp"]
    }
  }
}

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

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

{
  "context_servers": {
    "runtime-cloud": {
      "url": "https://api.withruntime.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "runtime-cloud": {
      "serverUrl": "https://api.withruntime.com/mcp"
    }
  }
}

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

name: Runtime Cloud
version: 0.0.1
schema: v1
mcpServers:
  - name: Runtime Cloud
    type: streamable-http
    url: https://api.withruntime.com/mcp

{
  "mcpServers": {
    "runtime-cloud": {
      "httpUrl": "https://api.withruntime.com/mcp"
    }
  }
}

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

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

goose://extension?url=https%3A%2F%2Fapi.withruntime.com%2Fmcp&type=streamable_http&id=runtime-cloud&name=Runtime%20Cloud

Is Runtime Cloud up right now?

It answered our last check on 7 November 2026 in 348 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Runtime Cloud

Questions about Runtime Cloud

Is there an official Runtime Cloud MCP server?

Yes. It is published by withruntime.com and served from api.withruntime.com, the vendor's own domain: https://api.withruntime.com/mcp.

How do I sign in to Runtime Cloud?

Add the server with a setup above. The first time your client connects it opens the sign-in page for withruntime.com; approve it and the tools load.

Is Runtime Cloud down?

It answered our last check on 7 November 2026 in 348 ms. Over 4 checks since 23 September 2026 it answered 4.

How do I add Runtime Cloud to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://api.withruntime.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does Runtime Cloud need an API key?

It needs a sign-in rather than a key you paste: the server answered with an authentication challenge, so your client runs the login when it first connects.

Where this comes from

Publisher: com.withruntime. Endpoint host: api.withruntime.com. ARD identifier: urn:air:com.withruntime:mcp:runtime. First indexed 23 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.