About
An A2A Protocol client TUI and CLI.
README
CI A2A Protocol PyPI version PyPI - Status Pepy total downloads GitHub stars
Handler is an open-source A2A protocol client for software engineers building, testing, and operating agentic systems. It provides an interactive TUI, a scriptable CLI with structured output, and an MCP server that lets other agents integrate with A2A services directly. Handler also supports global and repo-scoped A2A server configuration with bearer, API key, mTLS, and OAuth2 client credentials auth.
Install
Install Handler from the PyPI package as a uv tool:
uv tool install a2a-handler
Or with pipx:
pipx install a2a-handler
Or with pip:
pip install a2a-handler
Quick Start
Open the interactive terminal UI:
handler tui
Inspect an A2A server's agent card:
handler card get --url http://localhost:8000
Send a message from the CLI:
handler message send --url URL --text "hello"
Open the full documentation:
handler docs
Run Without Installing
Run Handler with uvx:
uvx --from a2a-handler handler
Run Handler with pipx:
pipx run a2a-handler
Documentation
Read the documentation at https://handler.alduncanson.com.
Install Iflow Mcp Alduncanson A2a Handler in Claude Desktop, Claude Code & Cursor
unyly install iflow-mcp-alduncanson-a2a-handlerInstalls into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.
First time? Get the CLI: curl -fsSL https://unyly.org/install | sh
Or configure manually
Run in your terminal:
claude mcp add iflow-mcp-alduncanson-a2a-handler -- uvx a2a-handlerStep-by-step: how to install Iflow Mcp Alduncanson A2a Handler
FAQ
Is Iflow Mcp Alduncanson A2a Handler MCP free?
Yes, Iflow Mcp Alduncanson A2a Handler MCP is free — one-click install via Unyly at no cost.
Does Iflow Mcp Alduncanson A2a Handler need an API key?
No, Iflow Mcp Alduncanson A2a Handler runs without API keys or environment variables.
Is Iflow Mcp Alduncanson A2a Handler hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Iflow Mcp Alduncanson A2a Handler in Claude Desktop, Claude Code or Cursor?
Open Iflow Mcp Alduncanson A2a Handler on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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