How to install MCP Tester in Claude Code
To install MCP Tester in Claude Code, run "claude mcp add mcp-tester -- npx -y @slbdn/mcp-tester" in your terminal, then check it with "claude mcp list". It takes about a minute.
Built from the published package · server updated 12 days ago
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Run the install command
Open a terminal in your project and run:
claude mcp add mcp-tester -- npx -y @slbdn/mcp-tester - 2
Choose where it applies (optional)
Add --scope user to use it in every project, or --scope project to share it with your team through a .mcp.json file.
claude mcp add --scope user mcp-tester -- npx -y @slbdn/mcp-tester - 3
Check that it is connected
List your servers, or type /mcp inside a Claude Code session to see its status and tools.
claude mcp list
MCP servers run with your permissions. If MCP Tester needs an API key, add it under env in the config. Check its README.
Install MCP Tester in another app
Similar servers
Questions
Does MCP Tester work in Claude Code?
Yes. Claude Code supports mcp servers (local and remote), skills and plugins, and MCP Tester installs with the steps above.
MCP Tester does not show up in Claude Code. What now?
Restart Claude Code fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.
Is MCP Tester safe?
It scores 80 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
