Like it says, it's a docker image built on alpine with curl, jq and some other usefull packages installed.
3.11
,latest
(v3.11/Dockerfile)3.10
(v3.10/Dockerfile)3.9
(v3.9/Dockerfile)3.8
(v3.8/Dockerfile)3.7
(v3.7/Dockerfile)
docker run --rm kublr/alpine-plus curl https://www.google.com