A2A + Memex: Complete MCP Integration

A2A is a MCP server that An MCP server that bridges the Model Context Protocol (MCP) with the Agent-to-Agent (A2A) protocol, enabling MCP-compatible AI assistants (like Claude) to seamlessly interact with A2A agents..

When integrated with Memex, you can:

• Register and manage A2A agents for communication
• Send messages to A2A agents and handle responses
• Manage asynchronous tasks and retrieve results

This guide provides step-by-step instructions to set up A2A in Memex, including configuration, examples, and troubleshooting.

What You'll Achieve

After completing this setup:

• A2A will be fully integrated and operational
• You can use A2A tools directly in Memex
• All A2A capabilities will be available for your workflows
• Access to 4 different tools

Prerequisites

Before starting, ensure you have:

• Memex installed and configured
• Compatible operating system (Desktop (macOS), Desktop (Windows), Desktop (Linux), Web Platform (Private Beta))

Installation

Step 1: Install A2A

Configuration

Step 2: Configure Memex

1. Open Memex settings
2. Navigate to MCP server configuration
3. Add A2A server with appropriate settings
4. Save and restart if needed

Examples

Once configured, you can use A2A in Memex:

Register and Communicate with Agent

Set up communication with an A2A agent

Ask Memex: "Register an agent for data analysis tasks and send it a dataset processing request"

Expected Result: Agent registered, task submitted, and task_id returned for tracking

Stream Real-Time Data

Use streaming to get real-time updates from agent

Ask Memex: "Stream live updates from the monitoring agent about system metrics"

Expected Result: Continuous stream of system metrics and status updates

Manage Multiple Agents

Coordinate tasks across multiple A2A agents

Ask Memex: "List all available agents and distribute parallel processing tasks"

Expected Result: Agent list displayed, tasks distributed, and progress tracked

Handle Task Results

Retrieve and process completed task results

Ask Memex: "Get the results from the data analysis task I submitted earlier"

Expected Result: Task results retrieved with processed data and analysis findings

Testing Your Setup

1. Launch Memex
2. Verify A2A is available in the tools list
3. Test basic A2A functionality

Troubleshooting

Common Issues

Agent Registration Failed

Symptoms: Registration errors, Agent not found, Connection timeouts

Cause: Network connectivity issues or invalid agent configuration

Solution:

• Check internet connectivity to A2A network
• Verify agent endpoint URLs are correct
• Ensure agent is online and accepting connections
• Check firewall settings and port accessibility

Task Never Completes

Symptoms: Task stuck in pending state, No response from agent

Cause: Agent overload, network issues, or task complexity

Solution:

• Check agent status and availability
• Cancel and resubmit the task
• Break complex tasks into smaller parts
• Try different agent if available

Transport Protocol Errors

Symptoms: Connection refused, Protocol mismatch errors

Cause: Incorrect transport configuration or port conflicts

Solution:

• Verify MCP_TRANSPORT setting matches client expectations
• Check MCP_HOST and MCP_PORT are accessible
• Ensure no port conflicts with other services
• Try different transport mode (stdio, http, sse)

Message Streaming Issues

Symptoms: Broken streams, Incomplete messages, Timeout errors

Cause: Network instability or buffer overflow

Solution:

• Check network stability and bandwidth
• Reduce message frequency or size
• Enable debug logging to trace issues
• Use appropriate buffer sizes for streaming

MCP Server Creation Fails

Symptoms: Server generation errors, Deployment failures, Tool discovery issues

Cause: Insufficient context or invalid server specifications

Solution:

• Provide more specific details about server requirements
• Check that API credentials are correctly configured
• Review Memex logs in Control Center for detailed error messages
• Use existing templates as starting points for complex servers
• Ensure local development environment has necessary dependencies

Template Detection Not Working

Symptoms: .memex/rules.md not loaded, Generic responses instead of specialized behavior

Cause: Repository not properly cloned or rules file missing

Solution:

• Verify template was fully cloned from GitHub
• Check that .memex/rules.md exists in project root
• Re-invoke template through Memex interface
• Restart Memex to refresh project context

Installed MCP Servers Not Responding

Symptoms: Server appears in list but tools unavailable, Connection timeouts, Empty tool lists

Cause: Server not properly started or configuration issues

Solution:

• Check server status in Control Center
• Verify server endpoints are accessible
• Reinstall server from MCP Directory
• Review server logs for startup errors
• Ensure required environment variables are set

High Token Usage

Symptoms: Rapid credit consumption, Context length warnings, Slow responses

Cause: Too many MCP servers active or inefficient prompting

Solution:

• Use templates to reduce token usage by 10x
• Disable unused MCP servers in Control Center
• Leverage project-specific rules for focused context
• Break complex tasks into smaller conversations

Cross-Platform Compatibility

Symptoms: Server works on desktop but not web, Platform-specific errors

Cause: Different capabilities between desktop and web versions

Solution:

• Use desktop app for full MCP server creation capabilities
• Web version (beta) has limited server building features
• Contact [email protected] for web platform support
• Consider Streamable HTTP servers for better web compatibility

A2A not appearing in Memex

Symptoms: Server not listed, Tools not available

Cause: Configuration or installation issue

Solution:

• Verify configuration syntax
• Check A2A installation
• Restart Memex
• Check logs for error messages

Next Steps

Now that A2A is integrated with Memex:

• Explore all A2A capabilities through Memex
• Check out other MCP servers that work with Memex
• Join the MCP community for tips and support
• Consider contributing to A2A development

Need Help?

• Search for A2A documentation
• Check the Memex MCP guide
• Join the MCP community discussions