To cite package ‘ajv’ in publications use:

Thorpe J (2017). ajv: Another JSON Schema Validator. R package version 1.0.0, https://github.com/jdthorpe/ajvr.

Corresponding BibTeX entry:

  @Manual{,
    title = {ajv: Another JSON Schema Validator},
    author = {Jason Thorpe},
    year = {2017},
    note = {R package version 1.0.0},
    url = {https://github.com/jdthorpe/ajvr},
  }