Arrive with ZEC.
You already hold ZEC and want assets on Robinhood Chain. Pay a one-time deposit address from the shielded balance of any Zcash wallet, and the rail delivers to the wallet you name. It is the same way out every crossing uses, and it carries no toll.
Why this door is free
An arrival through this door cannot be told apart from the last leg of a crossing: both are ZEC leaving the shielded pool into the rail, and an asset landing in a wallet. Every holder who uses it is cover for everyone who crossed.
Pay the deposit address from your shielded balance. A payment from a transparent address or an exchange account carries that address's history with it.
This page makes no key and holds nothing. The quote is asked for by your browser, from the rail, with no Stynx service in between.
The amount that arrives and the wallet it arrives in are public. What is not is where the ZEC came from.