A quasi-contract is a legal concept where a court enforces an obligation as if there were a formal agreement, even when no actual contract exists. In situations involving cryptocurrency, this usually arises from scenarios where one party benefits at the expense of another.For example, if a person mistakenly sends cryptocurrency to the wrong wallet address, the recipient may hold that asset without a legitimate claim to it. If the sender seeks recovery of those funds, a quasi-contract might come into play. The court could require the recipient to return the cryptocurrency, acting as though an obligation existed, even without a prior agreement.This concept helps to ensure fairness and prevent unjust enrichment. It recognizes that, in certain situations, it may not be equitable for one party to retain benefits obtained through mistakes or inequitable conduct. Thus, quasi-contracts serve to uphold justice by providing remedies in cases of error, fraud, or where one party unfairly profits from another’s actions.