Agents Flex is a Java framework for developing LLM (Large Language Model) applications. It provides multiple network protocols, such as HTTP, SSE, and WS, to connect with various LLMs, including OpenAI LLama and Others AI Prompt. Agents Flex offers a rich set of development templates and Prompt frameworks, including FEW-SHOT, CRISPE, BROKE, and ICIO. It also supports local method definition, parsing callbacks, and executing local methods to retrieve results.