GitHub Contributor count/list by org

count.sh

GH_TOKEN="1234"
ORG_NAME="some-org"

curl -H "Authorization: token ${GH_TOKEN}" https://api.github.com/orgs/${ORG_NAME}/repos | jq -r '.[].url' > /tmp/repos

rm /tmp/repos 2>/dev/null
while read REPO;do
curl -H "Authorization: token ${GH_TOKEN}" ${REPO}/contributors 2>/dev/null | jq -r '.[].login' >> /tmp/users
done < /tmp/repos

cat /tmp/users | sort -u | wc -l

Worth noting the /tmp/repos and /tmp/users will be left in place after each run if you want a listing as well as count.