What is Agent Communication Protocol (ACP)?
The Agent Communication Protocol (ACP) is a universal communication framework designed to improve interoperability among AI agents, software applications, and human-operated systems. It addresses the growing fragmentation of the AI ecosystem by providing a consistent method for agents built on different frameworks to communicate effectively. ACP uses a RESTful architecture that aligns with widely adopted web standards, making integration straightforward for developers and organizations. The protocol supports synchronous requests, asynchronous workflows, streaming interactions, and extended tasks that may take significant time to complete. Through MimeType-based messaging, ACP can transmit virtually any type of content, including text, images, audio, video, and proprietary file formats. The platform remains independent of any specific AI framework, allowing teams to integrate agents developed with BeeAI, LangChain, CrewAI, custom architectures, and future technologies. ACP also supports both online and offline discovery methods, making it easier to locate and connect agents in a variety of deployment environments. This flexibility enables organizations to replace agents, build collaborative multi-agent systems, and integrate AI capabilities across complex technology stacks. Businesses can use ACP to facilitate communication between internal tools, external partners, and specialized AI services without creating custom integrations for every connection. Official SDKs for Python and TypeScript are available, while the protocol itself remains simple enough to use with standard HTTP clients and development tools. As part of the Linux Foundation’s A2A ecosystem, ACP helps establish a scalable and open foundation for the next generation of interconnected AI systems.