Instead of looking for "fixed" keys, you can access Maltego legally through the following official options: Maltego Basic (formerly Community Edition) : This is the free-tier plan provided by
Maltego Classic offers a with full features. Use this for short-term projects or to evaluate before purchase. Maltego License Key Free Fixed
Modern Maltego versions use online license validation and hardware fingerprinting. A “fixed” key would require: Instead of looking for "fixed" keys, you can