All notable changes to the MCP Inspector extension will be documented in this file.
The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.
- Theme and Accessibility Improvements — Fixed MCP Inspector styling issues by improving VS Code theme color mapping, synchronizing dark/high-contrast mode behavior, and addressing text visibility problems in the Try It editor
- Clipboard Support — Fixed copy, cut, and paste in the MCP Inspector by bridging clipboard access through the extension host so cross-origin iframe inputs and the Server Files / Server Entries copy buttons work reliably
- Inspector Startup and Cross-Platform Reliability — Fixed MCP Inspector launch issues by improving process spawning, resolving browser auto-open path handling (including Windows-specific build/runtime path mismatches), and tightening client loading behavior
- Intermittent 404 Errors — Resolved loading issues by fixing static file path resolution, adding startup delay to prevent race conditions, and implementing automatic retry logic with exponential backoff
- Initial Beta Release — First public beta release of MCP Inspector for VSCode
- MCP Integration — Integration with @modelcontextprotocol/inspector v0.17.2
- Connection Monitoring — Real-time monitoring for MCP servers and clients with detailed request and response inspection
- Debugging Interface — Integrated debugging interface for MCP servers without leaving VSCode
- Server Configuration — Pre-populated server configuration support via URL command
- Dark Theme — Custom dark theme optimized for long debugging sessions
- Commands — Added
Open MCP InspectorandOpen MCP Inspector with URLcommands - Transport Support — Support for multiple MCP transport types (STDIO, SSE, Streamable HTTP)
- Theme Sync — Automatic theme synchronization with VSCode theme changes