MarketInfo() (MT4) or SymbolInfoDouble() (MT5) can retrieve quote prices (SYMBOL_BID, SYMBOL_ASK).
Quote / Two-Way Quote
Quote / Two-Way Quote - The pair of prices (Bid and Ask) for a symbol. MT4/MT5 always display two-way quotes. A Two-Way Quote is simply the current bid and ask offered by the broker. In MQL,