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Harbor supports syncing your MCP server fleet to multiple AI development tools simultaneously.

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Supported Hosts

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Linking Hosts

Before Harbor can sync to a host, you must link it:
Or use the Ports page in the desktop app and click Link next to each host.

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Automatic Syncing

Harbor automatically syncs your fleet to all linked hosts whenever you:
  • Dock or undock a server
  • Toggle a server on/off
  • Link or unlink a host
You can also force a manual sync with harbor signal or the Signal All button in the desktop app.

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How Syncing Works

Each host stores MCP server configuration in its own format. Harbor handles the translation:
1

Read

Harbor reads the host’s existing config file.
2

Merge

Your enabled servers are merged into the config. Servers you’ve configured directly in the host are left untouched.
3

Resolve

Any vault: references in environment variables are resolved to actual values from your OS keychain.
4

Write

The updated config is written back to the host’s config file.

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Per-Host Control

You can enable or disable individual servers for specific hosts. A server might be enabled for Claude Code but disabled for Cursor:

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Safe Merges

Harbor never overwrites your host configs. It identifies which servers it manages and only modifies those entries, leaving your manually-configured servers intact.