What is the primary purpose of a quasi contract?

A quasi contract is an obligation imposed by law to prevent unjust enrichment when one party benefits at the expense of another, without any formal agreement between the parties. This legal construct allows courts to enforce a contractual obligation even in the absence of a clear contract, ensuring that one party does not unfairly benefit from the actions or contributions of another. Essentially, it aims to restore fairness, compelling the enriched party to compensate the other party for their contribution or loss experienced.

The other options focus on specific aspects of formal contracts, such as providing clear written terms, ensuring mutual performance, or serving as templates for future agreements. While these elements are important in conventional contract law, they do not apply to quasi contracts, which exist due to the absence of a formal agreement but serve to address issues of equity and fairness in situations where one party would otherwise gain undeservedly.