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Prerequisites

  • Claude Desktop installed (download)
  • A Danube account (sign up)
  • Claude Pro, Max, Team, or Enterprise plan (required for custom connectors)

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Setup

1

Open Connectors Settings

  1. Open Claude Desktop
  2. Go to Settings (gear icon)
  3. Click Connectors in the sidebar
2

Add Danube as a Custom Connector

  1. Click Add custom connector at the bottom
  2. Enter the server URL:
  1. Click Add
3

Sign In and Allow

Claude Desktop opens Danube in your browser. Sign in with your Danube account, pick the workspace Claude should work in if you belong to an organization, and click Allow.
4

Enable in Conversations

In the chat input area, click the + button and select Connectors. Toggle Danube on to enable it for your conversation.

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How It Works

Claude Desktop connects directly to Danube’s remote MCP server using OAuth 2.0:
  1. Claude Desktop discovers Danube’s OAuth configuration automatically
  2. You sign in to Danube and allow Claude once
  3. Claude Desktop receives a one-hour access token and a refresh token, and renews the access token on its own
  4. Danube tools become available in your conversations
The connection is listed under Connected apps, where you can disconnect it at any time.

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Troubleshooting

  • Ensure you’re on a Claude Pro, Max, Team, or Enterprise plan (custom connectors require a paid plan)
  • Verify the URL is exactly https://mcp.danubeai.com/mcp
  • Try removing and re-adding the connector
  • Check your internet connection
  • Verify the server is reachable: visit https://mcp.danubeai.com/health in your browser
  • Try again after a few moments
  • If you disconnected Danube under Connected apps, or were removed from the organization it worked in, connect it again
  • A sign-in request expires after 15 minutes: start again from Claude if the page says it expired
  • Ensure your Danube account is active
  • Click the + button in the chat input and ensure Danube is toggled on under Connectors
  • Try starting a new conversation
  • Completely quit and relaunch Claude Desktop