A primary task of any central bank is to preserve the value of money. And the tool we have to do this is interest rates. In principle, different institutional arrangements could be designed and non-monetary tools could be developed to help contain inflation.
In practice, though, things are more difficult and the use of other tools would raise a new set of complexities and operational and governance challenges. It is also worth recalling that the task of controlling inflation has been assigned to central banks following years of experience with other arrangements that did not work out so well.