To cite package ‘mtgjsonsdk’ in publications use:

  Pratt R (2026). _mtgjsonsdk: 'DuckDB'-Backed Query Client for
  'MTGJSON' Card Data_. R package version 0.1.0,
  <https://github.com/mtgjson/mtgjson-sdk-r>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mtgjsonsdk: 'DuckDB'-Backed Query Client for 'MTGJSON' Card Data},
    author = {Robert Pratt},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/mtgjson/mtgjson-sdk-r},
  }