What access do I need to give an external development team?

Hi,

We have contracted a company to create a new version of our website. In order to create a signup form for our newsletter, they are asking for userid and password to enter the Constant Contact account. There is pushback internally to do that.

So I'm asking: what access do I need to give the external developers so they can do everything they need to create the integration on the new website?

Thanks,

L