BTW I didn’t mean to call the phase diagrams simple - what I meant to say was that this functionality was a well-established one (and I believe one of the first to appear at MP), so I was surprised to see it did not work on the new site…
No worries, I was just clarifying myself that these things do require planning time investment on our side–our existing apps do also have bugs and have been difficult to improve. Since we last commented, the new Phase Diagram app has been updated. Improvements for the new app include now being able to interact with and rotate quaternary phase diagrams (vs the static image previously), apply a machine learning model to estimate phase diagrams at finite temperature, view chemical potential diagrams, and switch between different functionals (for advanced users; this is also required for MP’s purposes). There is still functionality left to implement however.
Regarding your pressing concern, if you email me directly at [email protected], I can supply your API key to help you get running again asap – I certainly understand the inconvenience.
For the underlying issue and your company’s email requirement, ultimately we are a free service, and trying to support as many people as possible. As you may be able to tell, given the issues you’re having with login on the current/legacy website, maintaining our own login systems are difficult given the size of the team we have, and using third-party login providers (such as Google) greatly reduces the burden on the MP staff. With that said, passwordless email login is high on our list of features we want, I just can’t give a timeline yet.