How to Install the DataGalaxy MCP Server as a Claude Extension

Claude Desktop supports packaged Desktop Extensions (.mcpb files) — a one-click way to install an MCP server without editing a config file by hand. DataGalaxy provides a ready-made .mcpb extension for its MCP Server.

What you need before you start

• Claude Desktop, installed and up to date (macOS or Windows).

• Your DataGalaxy Personal Access Token (PAT) — found under Profile → Security.

• Your DataGalaxy MCP Server URL — found under the DataGalaxy MCP Server tab.

Install and configure the extension

1. Download the .mcpb file for the DataGalaxy MCP Server extension.
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   Attachment not carried over during migration. The original .mcpb file (about 1.08 MB) needs to be re-uploaded to this page manually — it could not be transferred automatically from the source article. Please attach the current .mcpb build here.

2. Double-click the downloaded .mcpb file (or right-click → Open with → Claude). Claude Desktop launches and shows an extension install prompt with the DataGalaxy extension's name, publisher, and the permissions it requests.
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   Screenshot: extension install prompt in Claude Desktop. (Re-add this image here — the original Freshdesk link expires after a few days.)

3. Review the extension details, then select Install. Claude Desktop adds the DataGalaxy extension to Settings → Extensions, where it appears alongside any other installed extensions.
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   Screenshot: DataGalaxy extension listed under Settings → Extensions. (Re-add this image here.)

4. Open the DataGalaxy extension's settings (from Settings → Extensions, select the extension, then Configure) and fill in the Server URL — your DataGalaxy MCP Server URL, in the format https://<your instance>.api.datagalaxy.com/mcp/ — and the Personal Access Token, your DataGalaxy PAT from What you need before you start. Save your changes.
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   Screenshot: DataGalaxy extension configuration fields. (Re-add this image here.)

5. Toggle the DataGalaxy extension on, if it isn't already, then restart Claude Desktop to make sure the connection is picked up.

6. Open a new chat and ask Claude to list the available DataGalaxy tools, or ask a simple catalog question (e.g. "List my DataGalaxy workspaces"). A successful response confirms the extension is connected and authenticated.

Troubleshooting

• Extension won't install — make sure Claude Desktop is up to date; older versions may not support .mcpb extensions.

• "Could not connect" after configuring — double-check the Server URL includes the trailing /mcp/, and that the PAT hasn't expired (regenerate it under Profile → Security if needed).

• Extension installed but tools don't appear — confirm the toggle in Settings → Extensions is on, and restart Claude Desktop.

Read more

• How to Add a DataGalaxy MCP Server to Claude Desktop

• DataGalaxy MCP Server Tools