I used Coinbase, which says that I currently have 1.07739719 BTC ≈ 727.03 USD in the wallet. But, I'm buying like 5 or 6 more BTC tomorrow when it's lower.
Fair enough, maybe your btc not only in 1 address but multiple address because it's on CoinBase, anyway since you new don't forget to add 3rd Party as Escrow you can get all Escrow list in
Here & good luck with your service.