The X-API-KEY header is missing, empty, or does not match a valid user.

Invalid sign (must be a valid zodiac sign), unsupported language for your tier, invalid period, or invalid date format (use YYYY-MM-DD).

The requested date or period is not available for your subscription tier. Upgrade to access historical data or additional periods.

You have exceeded your request limit for the current period. The response includes a detail message such as: 'Request limit exceeded (500 for free tier this period). Upgrade for more.'