I want to get live lists of all the exchange rates with Coinbase API. I realize that by using this: https://coinbase.com/api/v1/currencies/exchange_rates, I always get the same values, I guess these values change once per day. Is it possible to get live rates?
The simplest way to get nearly realtime data is to use one of the official or unofficial APIs. There exists a function you can use to receive the real time data you want. Coinbase API Reference
Edit 1: As an alternative, you can use the following links for receiving the Buy and Sell prices.
I don't know if this public API is as reliable as an authenticated access.
Edit 2: Even better: The spot price API Endpoint.