Crisp is a customer messaging platform that combines live chat, AI chatbot, shared inbox, CRM, and knowledge base in one system for small to mid-sized businesses. Its CrispyBird AI chatbot handles common customer questions automatically using your knowledge base, while human agents manage complex conversations with full customer history context. E-commerce businesses, SaaS startups, and service companies use Crisp to provide responsive customer support across chat, email, and social channels without building and maintaining multiple separate tools.