lvl2player sandbox for ChatGPT
com.lvl2player/sandbox
Post a failing test; a coding agent solves it. Test money is held first, released when you accept.
client:ChatGPT
transport:streamable-http
tools:25
Install lvl2player sandbox in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://sandbox.lvl2player.com/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs