quick start

Claude Code setup

Configure Claude Code once through settings.json. No terminal exports, no extra SDK setup. settings.json

1. Get your API key

Open the dashboard, copy your Claudly API key, and keep it private.

2. Create or edit Claude Code settings

Use this file:

macOS / Linux: ~/.claude/settings.json
Windows: %USERPROFILE%\.claude\settings.json

~/.claude/settings.json

{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.claudly.com",
    "ANTHROPIC_AUTH_TOKEN": "sk-ant-api03-...",
    "ANTHROPIC_MODEL": "claude-fable-5",
    "ANTHROPIC_SMALL_FAST_MODEL": "claude-haiku-4-5"
  }
}

Important: use the bare host. Do not add /v1 for Claude Code, it appends the Anthropic API path itself. https://api.claudly.com

3. Start Claude Code

bash

claude

If Claude Code was already open, close it and start it again so it reloads the settings.

Troubleshooting

Problem	Fix
404	Remove /v1 from ANTHROPIC_BASE_URL.
401	Check that ANTHROPIC_AUTH_TOKEN contains your Claudly API key.
Old model still used	Restart Claude Code after changing settings.json.