Well, currently not. But citeproc-rs, a CSL implementation written in Rust is in the making. I don't know if there will be any progress in the near future, but it should be possible to use this via lua bindings.

Am Do., 16. Mai 2019 um 16:12 Uhr schrieb nyssus <rocksolidbrassballs@gmail.com>:

On 16/05/2019 11:48, Denis Maier wrote:
> This is more tricky. I do very much like what ConTeXt has to offer for
> typesetting finished works, but I currently would not use it for writing a
> larger work in the Humanities. For smaller pieces I would probably write in
> Markdown, use pandoc to produce a context source file, and pandoc will me
> automatic citations via pandoc-citeproc (yet with a few glitches). For a
> longer work I currently don't have an alternative to biblatex. And I guess
> that is the point: Those with rather complex requirements for citations
> will either do them manually or use biblatex for this so it's not so easy
> to say if "there is a need". Having said that, I would really like being
> able to use ConTeXt here as well. So having a author-title style for the
> footnotes and the bibliographies would be more than welcome.
>
Honestly, some way to use CSL files to style bibliography would be ideal
here, but that doesn't seem to currently exist