My API key is not working / Error: Not authorized (401)

Check in order:

1. Header must be exactly Authorization: Bearer YOUR_API_KEY — no quotes around the key.

2. Confirm your subscription is active at lunarcrush.com/settings.

3. Re-copy the key via a plain text editor to strip invisible characters.

4. The key is case-sensitive.

If none of these work, regenerate a new key at lunarcrush.com/developers/api/authentication.

Helpful links

• Generate / regenerate your API key

• Account settings

• Pricing & active plan check