Chili Paste or 'Nam Prik' is a general term for spicy chili sauce and kind of like the “veggies and dip” of Thai cuisine. Their common ingredients include fresh or dry chilies, garlic, shallots, lime juice and often with baked shrimp paste or 'Kapi'. Nam Prik is normally eaten as a condiment or dipping sauce with boiled vegetables and fried fishes. But many kinds made perfect as rice seasonings and noodle dishes.
There are a wide variety of Nam Prik in Thailand, and each region has their own variations and flavors.