Multiple instances

You can connect more than one InvoiceNinja, for example separate accounts for two companies. Each needs its own invoiceninja-mcp container and is registered under its own name:

Instance	MCP server name	Tool prefix
Default	invoiceninja	mcp__invoiceninja__*
Labeled, e.g. work	invoiceninja-work	mcp__invoiceninja-work__*

Add, list or remove one

Ask Claude, for example "add my work InvoiceNinja" or "which InvoiceNinja instances are connected?". The manage-invoiceninja-instances skill handles it:

• Add: asks for a label (like work or home), the URL and the API token, then registers invoiceninja-<label>. Restart Claude Code so it connects.
• List: shows every configured instance and whether it's connected.
• Remove: unregisters the instance you name.

Which instance a skill uses

With one instance connected, skills just use it. With several, a skill first checks whether you already named one ("in my work account"); if not, it asks once which instance you mean and sticks with it for the rest of the task.