Set up in Claude

You will need the server address:

Text
https://se.marinedatacloud.com/api/assistant/mcp

Claude on the web and Claude Desktop

Both share the same settings, so connecting in one connects the other.

  1. Open Settings → Connectors.
  2. Click Add custom connector.
  3. Name it TheBoatApp and paste the URL above.
  4. Click Add, then Connect on the new entry.
  5. A browser window opens. Sign in to TheBoatApp and approve access.

The connector now shows as connected, with TheBoatApp's tools listed underneath.

Custom connectors are not available on every Claude plan. If Add custom connector is missing from your Connectors settings, your plan does not include them — Claude Code (below) is an alternative on any plan.

Using it

Start a new conversation and ask a question about your boat. Claude asks permission the first time it uses each tool; approve it and the answer follows.

Try:

  • What maintenance is overdue on my boat?
  • How much did I spend on Serenity in 2025, broken down by category?
  • Do I have spare impellers, and where are they stored?
  • Summarise my trips last season — how many nights aboard?

In a long conversation Claude may not think to check TheBoatApp. Saying "check TheBoatApp" is enough to prompt it.

Claude Code

Add the server from your terminal:

cURL
claude mcp add --transport http theboatapp https://se.marinedatacloud.com/api/assistant/mcp

Then start Claude Code and authenticate:

cURL
claude

Run /mcp, select theboatapp, and choose Authenticate. Your browser opens for sign-in, and the connection is stored for future sessions.

Add --scope user when you add the server if you want it available in every project rather than just the current one:

cURL
claude mcp add --transport http --scope user theboatapp https://se.marinedatacloud.com/api/assistant/mcp

Check the connection at any time:

cURL
claude mcp list

Removing the connector

In Claude and Claude Desktop, open Settings → Connectors and delete the entry. In Claude Code:

cURL
claude mcp remove theboatapp

Either way, access ends immediately. Nothing in your TheBoatApp account changes.

If something is not working

The tools do not appear. Confirm the connector shows as connected rather than merely added — adding the URL and completing sign-in are two separate steps. In Claude Code, /mcp shows the real connection state.

Sign-in opens but fails. Check you are signing in with the account that holds the boat data. If your browser is already signed in as a different TheBoatApp user, that is the account being connected — sign out there first, or complete the flow in a private window.

Claude says it cannot find your boats. If your account genuinely has no boats yet, every tool returns an empty result and Claude reports exactly that. Add a boat in the app and ask again.

Claude will not change anything. That is by design — every tool is read-only. See what it cannot do.