To cite package ‘serpstatr’ in publications use:

  Danilin A (2026). _serpstatr: 'Serpstat' API Wrapper_. R package
  version 0.4.2, <https://CRAN.R-project.org/package=serpstatr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {serpstatr: 'Serpstat' API Wrapper},
    author = {Alex Danilin},
    year = {2026},
    note = {R package version 0.4.2},
    url = {https://CRAN.R-project.org/package=serpstatr},
  }