No. Monolith does not have access to your private key or Seed. If you’ve lost these words, you can retrieve them by going to the 'Wallet' tab > 'Security' sub-tab (next to Balances) > 'Wallet Backed Up' in the app. Please keep a hard copy of your Seed somewhere safe (not on your device, in case your device is lost or stolen). Your public key is public and therefore is accessible to everyone on the Ethereum network, including Monolith.