A2A4J is a lightweight Java framework designed for building autonomous AI agents. It offers abstractions for agents, tools, memories, and planners, supporting asynchronous execution of tasks and seamless integration with OpenAI and other LLM APIs. Its modular design lets you define custom tools and memory stores, orchestrate multi-step workflows, and manage decision loops. With built-in error handling, logging, and extensibility, A2A4J accelerates the development of intelligent Java applications and microservices.

Flock provides a developer-friendly, modular framework for chaining multiple LLM calls, managing conversational memory, and integrating external tools into autonomous agents. With support for asynchronous execution and plugin extensions, Flock enables fine-grained control over agent behaviors, triggers, and context handling. It works seamlessly in Node.js and browser environments, letting teams rapidly prototype chatbots, data-processing workflows, virtual assistants, and other AI-driven automation solutions.