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Handler
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Handler

Active·★ 46·GPL-3.0·Updated 2026-10-20

Handler is an open-source A2A protocol client for your terminal. It provides a TUI and CLI to send messages, manage tasks, and inspect agent cards. An included MCP server lets AI assistants communicate with A2A agents.

#a2a#a2a-cli#a2a-client#a2a-protocol#a2a-server#adk#agent#ai
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Guides
$ Install
$ uv tool install a2a-handler
↗ Visit site★ GitHub
01

Features

01Terminal User Interface (TUI) for interactive use
02Command-line interface (CLI) for scripting
03Supports A2A protocol for agent communication
04Manage tasks and inspect agent cards
05Built-in MCP server for AI assistant integration
02

Compatibility

Python
Python
Verified via docs
03

Quick start

1
$ uv tool install a2a-handler
04

Use cases

↳Interacting with A2A agents via an intuitive terminal UI
↳Scripting agent communications in CI/CD pipelines
↳Enabling AI assistants to communicate with A2A agents via MCP
05

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alDuncanson /
Handler
↗

A2A Protocol client and developer toolkit.

46GPL-3.0
Last commit3d ago
StatusActive
CategoryDev Tooling
Links
Documentation↗Discussion↗Issues↗Releases↗
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