Yes, FP Markets is an ECN broker in the sense they supply forex quotes from a wide network of liquidity providers including Goldman Sachs, JP Morgan, HSBC, Citibank, etc with no price intervention from the broker. FP Markets call this ECN Pricing
The benefits of trading with an ECN broker includes lower spreads, minimal slippage, lightning-fast order execution speed and deep liquidity. FX Markets clients can access the ECN pricing model through the RAW account with a minimum deposit of USD 100.