Manually Change LCD and RPC Endpoint in Keplr

Click the top left bottom and go to Settings

And go to the tab of Endpoints. And the endpoints are default.

Change both endpoints with your BlockPI Network Cosmos endpoints, and confirm.

Below are the format of BlockPI Network Cosmos LCD and RPC endpoints. Make sure you create your own endpoints at https://dashboard.blockpi.io/

https://cosmos.blockpi.network/lcd/v1/{api_key}
https://cosmos.blockpi.network/rpc/v1/{api_key}