A2A MCP Server

by regismesquita

21 stars

193 downloads

Not rated

GitHub

About

A2A MCP Server is a lightweight Python bridge that lets Claude Desktop or any MCP client talk to A2A agents. It provides three tools: register servers, list agents, and call an agent, enabling quick integration of A2A-compatible agents with zero boilerplate for rapid prototyping.

Details

Author: regismesquita
GitHub stars: 21
Downloads: 193
Categories: AI

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below

Plugin Name A2A MCP Server

Command (node, npx, python, etc.)

Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

From the repository

Use the three MCP tools: a2a_server_registry to register or remove A2A servers, list_agents to list registered agents with capabilities, and call_agent to send a prompt to a specific agent. The typical workflow is to register a server, list agents, then call an agent as needed.

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "a2a mcp server": {
            "MCP_A2A": {
                "action": "add",
                "name": "security_audit",
                "url": "http://localhost:8000"
            }
        }
    }
}

McpServers

{
    "MCP_A2A": {
        "action": "add",
        "name": "security_audit",
        "url": "http://localhost:8000"
    }
}

A2A MCP Server

A simple MCP server that provides Claude Desktop access to A2A protocol agents.
> Developer friendly more than production ready, you can hack it to adapt to your needs and expand on whatever you need.
> But probably not the best idea to deploy into prod as-is.

Overview

This project was created to connect Claude Desktop with A2A (Agent-to-Agent) protocol agents, particularly those built with pcingola/a2a_min and fast-agent. It was developed as a personal project to assist with agent development and for fun.

Tools

The server provides three MCP tools:

1. a2a_server_registry - Register or remove A2A servers

   {

     "action": "add", 

     "name": "security_audit", 

     "url": "http://localhost:8000"

   }

2. list_agents - List all registered agents with their capabilities

{}

3. call_agent - Send a prompt to an agent and get its response

   {

     "agent_name": "security_audit",

     "prompt": "regismesquita/DevControlMCP"

   }

Workflow

The typical workflow is:

1. Register an A2A server with a2a_server_registry
2. List available agents with list_agents
3. Call an agent with call_agent whenever needed

Local Testing

This server has been tested locally with a security audit agent built on fast-agent and a2a_min. It successfully enables Claude Desktop to communicate with A2A agents.

Purpose

This bridge allows Claude Desktop to interact with any A2A-compatible agent, extending Claude's capabilities through the MCP tools interface.

Screenshot

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A2A MCP Server

About

Details

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Setting up with Highlight

Setting up with Cursor

JSON

JSON

JSON

Setting up with Claude Desktop

JSON

JSON

JSON

Setting up with Windsurf

JSON

JSON

JSON

Setting up with Cline

JSON

JSON

JSON

Setting up with Goose

JSON

JSON

JSON

From the repository

Claude Desktop / Cursor

McpServers

A2A MCP Server

Overview

Tools

Workflow

Local Testing

Purpose

Screenshot

Install

About

Details

Jump to

Setting up with Highlight

From the repository

Claude Desktop / Cursor

McpServers

A2A MCP Server

Overview

Tools

Workflow

Local Testing

Purpose

Screenshot

Install

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