Claude Code issues

Claude Code works in terminal but not in VS Code

Make sure the Claude Code CLI works in your terminal first:

claude doctor
claude -p "Say hello in one short sentence."

Then restart VS Code so the extension picks up the same local settings.

Claude Code settings are usually under:

System	Path
Windows	`%USERPROFILE%\.claude`
macOS or Linux	`~/.claude`

Claude Code should use:

https://api.fhrouter.com

Do not add /v1 for Claude Code.

Check:

The key is an FHRouter token key.
There are no extra spaces before or after the key.
Your shell or editor is not still using an old ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN, or ANTHROPIC_BASE_URL.

Some Claude Code releases send experimental headers that compatibility layers may reject. Try:

export CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1
claude

Windows PowerShell:

$env:CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS = "1"
claude

Command	Use
`claude`	Start an interactive session
`claude -p "prompt"`	Run a one-off prompt
`claude -c`	Continue the previous session if supported
`claude doctor`	Check local configuration
`claude update`	Update Claude Code if supported by your install