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Agent Protocol

Reviewed 19 July 2026Canonical definitionPart of: MCP & Agent Protocol Terms →

An agent protocol is a standardised interface that defines how agents communicate, exchange tasks, report status, and share results. Examples include A2A and MCP. Protocols reduce integration friction and enable interoperability.

§01 / QUESTIONSterm: Agent Protocol
Questions

Common questions.

What is Agent Protocol?

An agent protocol is a standardised interface that defines how agents communicate, exchange tasks, report status, and share results.

Why does Agent Protocol matter for AI agents?

Examples include A2A and MCP. Protocols reduce integration friction and enable interoperability.

Which terms are related to Agent Protocol?

Closely related concepts include A2A Protocol (Agent-to-Agent Protocol), MCP (Model Context Protocol), Interoperability (Agent), Model Context Protocol (MCP). Each is defined in the Prefactor glossary.

§02 / RELATEDnext: where this fits

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