Agent Protocols Standardize Agentic Communication Ecosystem

Companies and standards bodies are developing and adopting multiple agentic protocols to standardize how AI agents communicate across tools, agents, users, and domain services. Prominent examples include MCP (open-source, introduced late 2024), UTCP, Google's A2A (now in the Linux Foundation), ANP, NLIP, A2UI, AG-UI, UCP and AP2; the ecosystem centers on trade-offs in architecture, security, and interoperability.