FitFileSize MCP Server: Install & Setup

Install FitFileSize in Claude Code

Claude Code

claude mcp add fitfilesize -- npx -y fitfilesize-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "fitfilesize": {
      "command": "npx",
      "args": [
        "-y",
        "fitfilesize-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the FitFileSize MCP server do?

Compress PDFs and images, iPhone HEIC too, to fit an upload limit or a form's rules.

Is the FitFileSize MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does FitFileSize run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add FitFileSize to Claude Code?

Run: claude mcp add fitfilesize -- npx -y fitfilesize-mcp

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