[Zope] Accessing ZSQL Methods from outside Zope

I've got a Zope site (www.tunedb.org) with a MySQL backend and a load of data. People are asking me if they can connect to that database (read-only) somehow, perhaps using the SQL queries I have already set up, or perhaps by writing their own queries and accessing MySQL directly. Has anyone done anything like this ? Can you point me in the right direction ? Many thanks Richard Richard Moon richard@dcs.co.uk