Wit.ai is a platform that offers natural language processing (NLP) tools, designed to help developers build applications that can understand and interpret human speech. The service provides APIs for converting speech and text into structured data, making it easier to integrate conversational interfaces into digital products and services. Wit.ai supports various languages, enabling developers worldwide to build multilingual applications. The platform is commonly used for developing chatbots, voice-activated assistants, and other AI-driven communication tools.