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mcp/harbor
Grok

Multiplayer Agent for Grok

com.multiplayeragent/multiplayer-agent

Make any browser game multiplayer and host it at a share link. No account needed to start.

client:Grok transport:streamable-http tools:10

Install Multiplayer Agent in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "multiplayer-agent": {
      "type": "http",
      "url": "https://api.multiplayeragent.com/mcp?src=registry"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

What Grok can do once it is connected

Multiplayer Agent in other clients

Multiplayer Agent MCP server