VSCode Blackbox AI extension shows 'API streaming failed' error message

I’m having trouble with the Blackbox AI extension in Visual Studio Code

Whenever I try to use the Blackbox AI assistant for any coding task, I keep getting an error that says “API streaming failed”. The extension seems to install fine, but it just won’t work when I actually try to use it.

What I’ve already tried:

  1. Cleared all cache files from ...\AppData\Roaming\Code\Cache
  2. Removed cache data from the .vscode folder
  3. Completely uninstalled VSCode, reinstalled it, and then added the extension again

None of these steps fixed the problem. Has anyone else run into this streaming API issue with the Blackbox extension? I’m not sure what else to try at this point.

Had this exact problem two months ago - super frustrating. Turns out it wasn’t VSCode at all, but my network setup. Company firewall was blocking the API requests even though regular browsing worked fine. Had to get IT to whitelist the Blackbox AI domains. If you’re at home, check for VPN software or strict router settings that might mess with API calls. Your antivirus real-time protection could also be blocking the extension’s network requests. Once I fixed the network permissions, everything worked perfectly without changing anything else.

check ur blackbox account status first - mine did this when I hit the free tier limit. try logging out and back in through the extension settings since auth tokens get corrupted sometimes. if that doesn’t work, disable other AI extns like copilot - they conflict with each other.

This usually happens because of outdated extension versions or corrupted config files. I’ve seen this before when the extension tries to use old API endpoints that don’t work anymore. Check your Extensions panel, find Blackbox AI, and see if there’s an update—newer versions typically fix streaming issues. If it’s already updated, try resetting the extension settings: go to File > Preferences > Settings, search ‘blackbox’, and reset everything to default. Also check your internet connection since streaming needs stable bandwidth. Try switching between WiFi and ethernet to see if it’s a connectivity problem instead of a software issue.

Had this exact error last year - drove me nuts for days. Turns out the extension was connecting to the wrong server region.

Hit up your VSCode settings and search “blackbox”. Look for server or region options and try switching between US, EU, or Asia if you see them.

No region settings? Check your system proxy. Windows sometimes has proxy stuff enabled that screws with streaming APIs, even without corporate VPN. Go to Windows Settings > Network > Proxy and set everything to automatic or off.

Also check if you’ve got multiple VSCode installs running. I had both system and user versions without knowing it - the extension was talking to the wrong one. Nuke everything and do a clean install of just one version.

The streaming error’s usually about connection routing, not the extension being busted.