A clever combination of "token" and "engine", this name could suit many token/crypto based brands. Alternative could be read as "tok" + "engine", with "tok" standing for "theory of knowledge" or an equivalent acronym.
Tokengine has nine letters and three syllables. Successful brands using three syllable names include Nescafé, Microsoft and Grammarly.
Tokengine.com is a dot com domain. Dot com domains are the most prestigious top-level-domain in the world, used by famous websites like facebook.com. A dot com is the first thing people think of when they think of a website.