The service adds a reasoning function to the provider's research tool, Attempto Controlled English (ACE). ACE is a "controlled natural language" that structures statements in the English language in a way that attempts to unambiguously represent knowledge. It defines precise text expressions, based on usage in a specific topic domain, to remove inconsistencies and variance due to interpretation. The RACE service exposes these texts to logical analysis to verify the true of reasoning based on them.
API methods support submission of text-based axioms and theorems, along with specifications for analysis to check consistency (whether any statements contract other statements), prove assertions based on submitted conditions, or answer a query stated in the request.