Does Fedi support on-chain transactions?

While you can send bitcoin on-chain from any federation wallet, the ability to receive on-chain deposits is case by case and depends on the specific federation.

If your federation supports on-chain deposits, you can generate a wallet address by tapping "Receive" on your wallet balance and toggling from "Lightning" to "On-chain" at the top of the screen.

If you don't see the ability to toggle between the two payment methods, this means that specific federation does not support on-chain deposits.

As stated in the modal, to prevent issues receiving funds on-chain, make sure to send funds within 24 hours of generating an address; do not re-use addresses; and keep the transaction size under 40 KB.

Note that transaction size refers to the amount of data a transaction occupies on the blockchain, which is determined by the number of inputs and outputs in the transaction.

The easiest way to ensure you stay below the 40 KB limit is to avoid the use of third-party "batching" services that bundle multiple payments into one big transaction.

Simply send funds from a single wallet address to the on-chain address you generate in the Fedi app, and you should avoid size limit issues altogether.