The key is wrong, revoked or from the wrong provider. A system environment variable overrides scuttle.env, so if the error says the key came from an environment variable, remove it: reg delete HKCU\Environment /v ANTHROPIC_API_KEY /f, open a new window, and put a fresh key in scuttle.env.

In scuttle.env a line starting with # is a comment. Delete the # in front of the key line, save, and restart Scuttle. Keys are read at startup.

The provider doesn’t know that model name. Type /models for valid names, or use an alias like /model nemotron. The full NVIDIA name is nvidia/nemotron-3-ultra-550b-a55b.

Don’t use requirements.txt on a PC. It is for the Android build and pins Kivy and numpy. Use pip install -r requirements-pc.txt or run setup_windows.bat.

You are running crawl.py from an incomplete folder. Use the full bundle folder and run scuttle.bat from there.

Run Scuttle with scuttle.bat. It starts Python in UTF-8 mode and turns on colors. Windows Terminal shows the crab best.

Save the file as UTF-8. Scuttle also reads UTF-16 and ANSI files in the Windows bundle. Run scuttle.bat --doctor to see which keys it can read.

Never paste keys into chats or screenshots. If one leaks, revoke it at the provider and make a new one.