A staking transaction has nothing to do with any API. It is a function of the Safex core protocol.
All purchase transactions on the Safex mainnet result in a flow of SFX to the fee pool. Every SFT staker is eligible to claim revenue share of said fee pool. This is always valid for any purchase or stake transaction via CLI or any GUI application that is connected to the Safex mainnet. In the end, the TWM (or any other) GUI / wallet is just the tool to form and submit transactions to the network in a user friendly way.
You can compare it with using different wallets for Bitcoin or Ethereum to execute transactions - the blockchain/miners/nodes do not care, which GUI / app is used for the transaction as long as they are all connected to the same network.