MCP Community Node with MongoDb MCP

Hey everyone, I have question about how to set up credential for MCP Client Community node for MongoDB.

As far as i knew this is what they provided:
{
“mcpServers”: {
“MongoDB”: {
“command”: “npx”,
“args”: [“-y”, “mongodb-mcp-server”],
“env”: {
“MDB_MCP_CONNECTION_STRING”: “mongodb+srv://username:[email protected]/myDatabase”
}
}
}
}

and i am pretty sure i set it right.

but still i could not connect with this error:

It would be great if you can help me out, thanks