73 lines
1.9 KiB
Markdown
73 lines
1.9 KiB
Markdown
---
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id: claude-code-cli
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slug: /guides/claude-code-cli
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title: Install or Repair Claude Code CLI
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sidebar_label: Claude Code CLI
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description: Install or repair the Claude Code CLI (claude) so MCP for Unity can launch it.
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---
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# Install or Repair Claude Code CLI
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You need the Claude Code CLI (`claude`) available on your system.
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:::caution Switching transport requires a restart
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If you change from `http` to `stdio` (or vice versa) in the MCP for Unity window, **restart Claude Code** for it to pick up the change.
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:::
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## Recommended (native installers)
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**macOS / Linux / WSL:**
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```bash
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curl -fsSL https://claude.ai/install.sh | bash
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claude doctor
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```
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**Windows PowerShell:**
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```powershell
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irm https://claude.ai/install.ps1 | iex
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claude doctor
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```
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## Alternative: npm via NVM (installs under `~/.nvm`)
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```bash
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# Install / select a Node version
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nvm install v21.7.1
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nvm use v21.7.1
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# Install Claude Code CLI into this Node's global prefix
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npm install -g @anthropic-ai/claude-code
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# Verify it's under NVM
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which claude
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claude --version
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```
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## Alternative: npm with system / Homebrew Node
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```bash
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# If you don't have Node yet (macOS):
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brew install node
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# Install Claude Code CLI globally
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npm install -g @anthropic-ai/claude-code
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# Verify it's on PATH (typical: /opt/homebrew/bin/claude or /usr/local/bin/claude)
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which claude
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claude --version
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```
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## macOS PATH gotcha
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On macOS, Unity launched from Finder / Hub may not inherit your shell PATH. If `claude` isn't found:
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- **Either** launch Hub from Terminal (so PATH propagates),
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- **or** use the MCP for Unity window's **"Choose Claude Install Location"** to set the absolute path.
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## Related troubleshooting
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- macOS dyld ICU library errors: see [Common Setup Problems → macOS Claude CLI dyld error](/guides/troubleshooting#macos-claude-cli-fails-to-start-dyld-icu-library-not-loaded)
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- "Claude Not Found" in the Register button: see the FAQ in [Common Setup Problems](/guides/troubleshooting#faq--claude-code)
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