To cite package ‘RCurl’ in publications use:

Temple Lang D (2026). RCurl: General Network (HTTP/FTP/...) Client Interface for R. R package version 1.98-1.19, https://CRAN.R-project.org/package=RCurl.

Corresponding BibTeX entry:

  @Manual{,
    title = {RCurl: General Network (HTTP/FTP/...) Client Interface for
      R},
    author = {Duncan {Temple Lang}},
    year = {2026},
    note = {R package version 1.98-1.19},
    url = {https://CRAN.R-project.org/package=RCurl},
  }