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A2A Project·Sep 14, 2026·v0.2.0·open source

A2A CLI

The A2A CLI is the official command-line interface for interacting with agents compatible with the Agent2Agent (A2A) protocol. It enables developers to discover, message, and manage autonomous AI agents directly from their terminal, providing a standardized way to handle agent communication across different frameworks and languages.

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overview

The A2A CLI is the official command-line interface for interacting with agents compatible with the Agent2Agent (A2A) protocol. It enables developers to discover, message, and manage autonomous AI agents directly from their terminal, providing a standardized way to handle agent communication across different frameworks and languages.

key features
  • 01Standardized command-line interface for A2A-compatible agents
  • 02Support for multiple transport protocols including JSON-RPC, REST, and gRPC
  • 03Real-time event streaming and task lifecycle management
  • 04Extensible architecture via custom transport plugins
  • 05Agent discovery and card inspection capabilities
  • 06Integration support for AI coding agents like Claude Code and Cursor
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