lingcorpora package provides R with API from different linguistic corpora. This package includes APIs for:
You can install the development version from Github:
install.packages("devtools")
devtools::install_github("agricolamz/lingcorpora.R", dependencies = TRUE)
Load a library:
library(lingcorpora)
In addition to the usual R package documentation, we also have a website with examples.
Python version of this package by Alexey Koshevoy is located here