MCP asks for authentication, but then does not start authentication

[SvenMeyer]

Path: /intro/more/mcp

setup mcp as described in factory.ai DROID CLI

{
  "mcpServers": {

    "particle": {
      "type": "sse",
      "url": "https://developers.particle.network/mcp"
    }
}

... but when i select "Authenticate" no expected web session comes up.

[soos3d]

try to remove "type": "sse", or use http instead of sse.