This is an api for using ruboxxo to solve binoxxo puzzles. You may also be interested in binoxxo.meier.si.

Try crafting a POST request to /api, as follows:

curl -X POST https://ruboxxo.meier.si/api -d '{"action": "solve", "data": [[0,null,null,null],[null,null,1,0],[1,null,null,null],[1,1,null,null]]}'

Instead of letting ruboxxo solve a puzzle, it can also just return a hint:

curl -X POST https://ruboxxo.meier.si/api -d '{"action": "hint", "data": [[0,1,1,0,1,0],[1,null,null,1,null,null],[1,null,null,1,null,null],[0,null,null,0,null,null],[1,null,null,null,null,null],[0,null,null,null,null,null]]}'