How to Use the Backblaze B2 MCP in Claude

Q: Can I create a new bucket in Backblaze B2 using Claude Desktop?

Yes. Just ask your agent to create a bucket. It uses the createbucket tool to provision a new storage partition in your B2 account instantly.

Manage your Backblaze B2 storage without leaving the chat. Your Claude Desktop agent can create buckets, upload files, and manage versions.

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Connect Backblaze B2 MCP to Claude Desktop

Create your Vinkius account to connect Backblaze B2 to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Backblaze B2 with Claude Desktop

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Create and manage B2 buckets

The `create_bucket` tool lets your agent provision new storage buckets on the fly. You can also use `update_bucket` to change access rules or `delete_bucket` to tear down empty buckets you no longer need. This means you can set up storage for a new project right from the chat. Before you can do anything, you need the bucket ID. Your agent uses `list_buckets` to get the exact IDs for your account. This avoids errors and makes sure all subsequent file operations target the right place. It's a simple but critical first step.

Control individual files and versions

Your agent can dig into specific file details with `get_file_info` to check checksums and headers. If you need to roll back a change, `delete_file_version` removes a specific version of a file from storage for good. For safer cleanups, use `hide_file`. It marks a file as hidden without actually deleting the data, letting your lifecycle rules handle the final purge. This is great for soft-deleting assets without risking immediate data loss. Your agent can also use `list_file_names` to get a clean list of what's actually visible in a bucket.

Run diagnostics with your MCP Server

Something break? The `list_unfinished_large_files` tool is your go-to. It finds stalled multipart uploads, which usually means an API client or script failed midway. Your agent can spot these broken uploads so you can clean them up. This MCP Server needs the right API endpoint to work. Your agent handles this automatically with `authorize_account`. It finds the specific regional API URL for your account, so you don't have to.

Setup guide

Set up Backblaze B2 MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Backblaze B2 MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Backblaze B2 MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under backblaze-b2-mcp.

json

{
  "mcpServers": {
    "backblaze-b2-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Backblaze B2. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Backblaze B2 MCP in Claude Desktop

It uses this MCP Server. You install it, and your Claude agent gets a set of tools to directly manage your B2 buckets and files from the chat.

Yes. Just ask your agent to create a bucket. It uses the `create_bucket` tool to provision a new storage partition in your B2 account instantly.

Tell your agent to list files in a specific bucket. It will use the `list_file_names` tool, which correctly ignores hidden files and shows you exactly what's currently active.

Each MCP Server connection is configured with specific credentials. You can set up multiple connections if needed, but a single server instance talks to one B2 account at a time.

The server only handles B2 bucket and file metadata like names, IDs, checksums, and access control settings. It doesn't read your actual file contents. All authentication is handled by Vinkius, keeping your B2 account keys secure.

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