Nithyanand S.

Export functionality: The ability for end users to directly export the presentation (e.g., to PowerPoint) from the link generated via the API.

PDF,DOC generation: Ability to generate PDF and docs too using the same data provided rather than just limiting to slides.

Branding options: An option to add a custom company logo to the generated presentations, if possible.

Custom attribution: The ability to customise the "Made By ( )" text through API parameters instead of defaulting to the workspace name.

Enterprise plan: Once the product is public, an enterprise-tier offering would be incredibly valuable — especially one that supports a higher daily presentation limit (100/day is a bit tight for enterprise use across multiple clients).