MCP Spy - Debug MCP Communication Debug Model Context Protocol server integrations. Overview MCP Spy helps debug: - Message traffic between Claude and MCP servers - Latency issues - Failed requests - Protocol compliance Traffic Analysis View Recent Traffic Filter by Type Latency Analysis Measure Response Times Find Slow Calls Failed Request Analysis Find Failures Common Issues 1. Connection refused - Server not running 2. Timeout - Server too slow 3. Invalid JSON - Malformed request/response 4. Unknown tool - Tool not registered MCP Server Debug Check Server Status Server Logs Test Tool Direc…