proxy_mcp_call

{
  "name": "proxy_mcp_call",
  "description": "Call a tool on a remote MCP server. Enables cross-subdomain MCP federation (e.g. mcp.platphormnews.com -> mcp.ph3ar.com).",
  "inputSchema": {
    "type": "object",
    "properties": {
      "server": {
        "type": "string",
        "description": "Target MCP server name (from list_mcp_servers)"
      },
      "tool": {
        "type": "string",
        "description": "Tool name to call on remote server"
      },
      "args": {
        "type": "object",
        "additionalProperties": true
      }
    },
    "required": [
      "server",
      "tool"
    ]
  },
  "category": "MCP Federation",
  "authRequired": true,
  "mutability": "proxy",
  "status": "auth_required"
}