In a food processor, blend olives, capers, sundried tomatoes, basil, olive oil, and lemon juice until smooth or chunky, depending on your preference. Sprinkle with parsley and set aside.
Slice baguette, drizzle with olive oil, and bake at 375°F for 15 minutes, flipping halfway.
Sprinkle warm baguette toasts with sea salt and serve with the tapenade.