ACPs: Agent Collaboration Protocols for the Internet of Agents

-- With the rapid advancement of artificial intelligence, the proliferation of autonomous agents has introduced new challenges in interoperability, scalability, and coordination. The Internet of Agents (IoA) aims to interconnect heterogeneous agents through standardized communication protocols, enabling seamless collaboration and in telligent task execution. However, existing agent communication protocols such as MCP, A2A, and ANP remain fragmented and scenario - specific. To address this gap, we propose Agent Collaboration Protocols (ACPs), a comprehensive protocol suite for the IoA. A CPs include registration, discovery, interaction, and tooling protocols to support trustable access, capability orchestration, and workflow construction. We present the architecture, key technologies, and application workflows of ACPs, and demonstrate its effectiveness in a collaborative restaurant booking scenario. ACPs lay the foundation for building a secure, open, and scalable agent interconnecting infrastructure. In today's digital era, the rapid development of artificial intelligence has given rise to a new type of technical entity -- agents. As software or hardware entities endowed with autonomous capabilities for perception, decision - making, and execution, agents have increasingly become a focal point in technological advancement.