Pulse chickpeas, tahini, lemon juice, zest, oil, and garlic in food processor until mostly smooth.
Add parsley, dill, mint, cumin, paprika, salt, and pepper; process until combined and herbs finely chopped.
With processor running, slowly add warm water until smooth and creamy, not runny.
Transfer to slow cooker; smooth with spatula.
Cover; cook on low 1.5 hours, stirring after 45 minutes, to warm through and blend flavors.
Drizzle extra oil; sprinkle paprika and toasted pine nuts. Serve warm with pita chips, vegetables, or pita bread.