OpenClient is an open-source MCP that standardizes how applications supply context to large language models (LLMs). It acts like a universal connector, enabling devices and applications to seamlessly interface with various LLMs and data sources. The protocol supports core components such as MCP hosts, clients, and servers, including terminal, filesystem, and memory services. It offers secure, flexible, and extensible architecture for AI applications, facilitating advanced workflows, context management, and multi-provider LLM integration. This makes it valuable for developers creating next-generation AI solutions that require efficient, reliable data and command management.