OneCompiler Private API (free)

onecompiler_curl.sh

JSCODE='(() => console.log(123))();'

# ---------------------------------
# Do not edit below this line

DATA=$(echo -n '{"name":"JavaScript","title":"JavaScript Hello World","version":"ES6","mode":"javascript","description":null,"extension":"js","languageType":"programming","active":true,"properties":{"language":"javascript","docs":true,"tutorials":true,"cheatsheets":true,"filesEditable":true,"filesDeletable":true,"files":[{"name":"HelloWorld.js","content":"-##CODE##-"}]},"visibility":"public"}' | sed "s/-##CODE##-/$JSCODE/")

curl 'https://onecompiler.com/api/code/exec' \
-X POST -d "$DATA" \
-H 'Content-Type: application/json; charset=utf-8'
echo

Try on Replit: https://replit.com/@DCat09/OneCompilerApi