It seems like the list of actions for Open AI Gym environments are not available to check out even in the documentation. For example, let's say you want to play
get-headers
tagfield
add-action
stm32h7
location-href
telegraf.js
dijit.form
nfv
escaping
servlet-listeners
android-debug
hey
asynctaskloader
dt
eastl
cyclic-reference
triangular
libxslt
android-things
bump-mapping
google-fit
mat-expansion-panel
ggez
shared-libraries
pyproj
id-generation
stretch
widechar
dss
tablet