Does standalone mode work with free version

[Recodify]

const options = {
  standalone: true,                       // mandatory
  apmOptions: {
    publicKey: process.env.KM_PUBLIC_KEY,   // define the public key given in the dashboard
    secretKey: process.env.KM_SECRET_KEY,   // define the private key given in the dashboard
    appName: `${process.env.KM_APP_NAME}_${process.env.NODE_ENV}`       // define an application name
  }
};

export const pm2Apm = require('@pm2/io').init(options);

I'm requiring the above but am not seeing anything in the dashboard. When I start via PM2, using the same public key and secret, it works fine. I was wondering if perhaps the standalone agent only works with enterprise, as I've seen a few references to this in the code.