If you do not have an API key for the Manifesto Documents Database, you can create one via your profile page on https://manifesto-project.wzb.eu. If you do not have an account, you can register on the webpage.
mp_setapikey(key.file = NULL, key = NA_character_)
file name containing the API key
new API key
The key is read from the file specified in key.file
. If this
argument is NULL
, the key given in the argument key
is used.