Backblaze B2 MCP

Name: Backblaze B2 MCP
Author: Backblaze

BackblazeOfficial

Manages Backblaze B2 buckets, files, application keys and Object Lock, with S3-compatible data operations and storage analytics.

Setup

Choose your client, copy the config, then fill in any required environment variables.

Add to Cursor Add to VS Code

claude mcp add backblaze-b2 --env B2_APPLICATION_KEY_ID='<B2_APPLICATION_KEY_ID>' --env B2_APPLICATION_KEY='<B2_APPLICATION_KEY>' --env B2_MASTER_KEY_ID='<B2_MASTER_KEY_ID>' --env B2_MASTER_KEY='<B2_MASTER_KEY>' -- npx -y @backblaze-labs/b2-mcp

~/.codex/config.toml

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

# codex mcp add backblaze-b2 --env B2_APPLICATION_KEY_ID='<B2_APPLICATION_KEY_ID>' --env B2_APPLICATION_KEY='<B2_APPLICATION_KEY>' --env B2_MASTER_KEY_ID='<B2_MASTER_KEY_ID>' --env B2_MASTER_KEY='<B2_MASTER_KEY>' -- npx -y @backblaze-labs/b2-mcp

~/.cursor/mcp.json

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

.vscode/mcp.json

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

~/.gemini/settings.json

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

claude_desktop_config.json

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

.trae/mcp.json

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

Environment variables

B2_APPLICATION_KEY_ID
B2_APPLICATION_KEY
B2_MASTER_KEY_ID
B2_MASTER_KEY

Replace the placeholders with your own credentials and keep them out of version control.

Setup

Environment variables

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