M
MCP Inspector
Visual testing and debugging tool for MCP servers — 9K+ stars
Open SourceFree
Install
npx @modelcontextprotocol/inspectorAbout
The official visual testing tool for MCP servers. Provides an interactive UI to connect to any MCP server, browse available tools/resources/prompts, test tool calls with parameters, and inspect responses. Essential for developing and debugging custom MCP servers.
Details
| Capabilities | server-testing, tool-inspection, debugging, protocol-validation |
| Transport | stdio, sse |
| Compatible Clients | any-mcp-server |
Tags
mcpdebuggingtestingdeveloper-toolsinspector
Quick Info
- Organization
- Model Context Protocol
- Pricing
- open-source
- Free Tier
- Yes
- Updated
- May 26, 2026
9.9Ktoday133
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