Quote from: NeuroticFish on Today at 09:40:20 AM

Of course, it would be of use to find out what these guys really want, but all they say (for now) is that a certain web page doesn't work. (Interesting enough at some point it worked for me.)

Going trough the Withdrawal API documentation i could not find a wallet status endpoint.
Would this be enough? By making a new deposit address it will give out a success true or false status for the coin and supply you with a address so you know you can deposit.
https://github.com/binance-exchange/binance-official-api-docs/blob/master/wapi-api.md#deposit-address-user_data