A2A

A2A stands for Agent-to-Agent communication, where autonomous software agents interact directly with one another to complete tasks or exchange information. These agents may operate across different systems, tools, or environments, using APIs, planning logic, or language models to coordinate actions without human involvement. A2A communication is a key component of Agentic AI architectures, enabling distributed decision-making, task delegation, and multi-agent workflows. While it increases automation and efficiency, A2A also raises governance concerns, including security risks, traceability gaps, and cost escalation—requiring clear approval paths and monitoring systems.

ModelOp integrates A2A governance through services like the agent inventory, lifecycle automation, and proxy enforcement—ensuring all A2A agents are registered, monitored, and compliant with enterprise policies.

All Terms