To cite package ‘httr2’ in publications use:

  Wickham H (2024). _httr2: Perform HTTP Requests and Process the
  Responses_. R package version 1.0.5,
  <https://CRAN.R-project.org/package=httr2>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {httr2: Perform HTTP Requests and Process the Responses},
    author = {Hadley Wickham},
    year = {2024},
    note = {R package version 1.0.5},
    url = {https://CRAN.R-project.org/package=httr2},
  }