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mcp/harbor
Claude Desktop

Backblaze B2 MCP Server for Claude Desktop

io.github.backblaze-labs/b2-mcp

Official Backblaze B2 MCP server for buckets, files, keys, Object Lock, and S3 storage.

client:Claude Desktop transport:stdio runtime:npm

Install Backblaze B2 MCP Server in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "b2-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@backblaze-labs/b2-mcp"
      ],
      "env": {
        "B2_APPLICATION_KEY_ID": "<B2_APPLICATION_KEY_ID>",
        "B2_APPLICATION_KEY": "<B2_APPLICATION_KEY>",
        "B2_REGION": "<B2_REGION>",
        "B2_MASTER_KEY_ID": "<B2_MASTER_KEY_ID>",
        "B2_MASTER_KEY": "<B2_MASTER_KEY>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

Backblaze B2 MCP Server in other clients

Backblaze B2 MCP Server MCP server