Using nulled software is a violation of copyright. Furthermore, it denies the developers the resources they need to continue improving the tool. For a professional business, the risk of a "Cease and Desist" or having your hosting provider shut down your site isn't worth the $99 savings. The Better Alternative: OptimizePress 3.0 (Official)
"Nulled" refers to premium software that has had its licensing and security features (like the API Key requirement) stripped away by third parties. While it seems like a shortcut, it often results in the following: 1. Security Vulnerabilities and Malware OptimizePress Plugin 2.5.4.2 NULLED API Key Free Download
OptimizePress requires regular updates to remain compatible with the latest versions of WordPress and PHP. Using a nulled version means you won't receive: Leaving your site open to exploits. Using nulled software is a violation of copyright
Instead of searching for a "Nulled API Key," consider these steps to protect your brand: The Better Alternative: OptimizePress 3