I need to use multisig wallet on my online service. The most suitable service for me is Bitgo, but it is very expensive. Commission 0.25% on the withdrawal. Can I use the Copay wallet for such tasks? I would not want to run my own Bitcore server. I can not figure out how to send API requests to the Bitcore server from Bitpay.
There is a multisig option for wallets. Bitgo has a much more nuanced way to handle multisig. Better for some environments, but not so good for others. Try creating a multisig wallet in Copay and seeing if it will work for you. You can do it across a few devices to make sure you see how it works