COMBINE parsley, oregano, crushed red pepper, paprika, salt, black pepper, and garlic in a medium (1-pint) lidded jar or a medium bowl. Stir together; add oil and vinegar. Seal jar, and shake (or stir mixture in bowl) until well combined.
MAKE AHEAD Chimichurri can be stored in an airtight container in refrigerator up to 2 weeks.