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mcp/harbor
VS Code

Cruncher for VS Code

io.github.islobodan/cruncher-mcp

Scientific calculator MCP server with 43 tools: arithmetic, trig, stats, unit conversion.

client:VS Code transport:stdio runtime:npm

Install Cruncher in VS Code

.vscode/mcp.json 

{
  "inputs": [
    {
      "type": "promptString",
      "id": "cruncher-tool-set",
      "description": "CRUNCHER_TOOL_SET",
      "password": true
    },
    {
      "type": "promptString",
      "id": "cruncher-timeout",
      "description": "CRUNCHER_TIMEOUT",
      "password": true
    }
  ],
  "servers": {
    "cruncher-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@slbdn/cruncher-mcp"
      ],
      "env": {
        "CRUNCHER_TOOL_SET": "${input:cruncher-tool-set}",
        "CRUNCHER_TIMEOUT": "${input:cruncher-timeout}"
      }
    }
  }
}

VS Code prompts for each input the first time the server starts, so no secret is written to the file. VS Code docs

Cruncher in other clients

Cruncher MCP server