With the advancement of artificial intelligence and the proliferation of autonomous interactions among intelligent systems, inter-AI contracts have emerged as a novel domain within cyber law. The primary research question of this study is how existing legal frameworks can govern contracts between AI systems and what challenges arise regarding liability, legal validity, and enforcement of these contracts. The significance of this topic lies in the fact that AI-AI interactions may create legal obligations without direct human intervention, rendering traditional laws insufficient to address emerging needs. The objective of this article is to provide a legal analysis of inter-AI contracts and to examine the capacity of emerging cyber law principles to address this phenomenon. The research method is descriptive–analytical, based on documentary study, including the review of existing laws, international instruments, and hypothetical inter-AI contract examples. The results indicate that while traditional concepts of contracts and legal responsibility offer preliminary adaptability to AI-AI interactions, legal gaps and the lack of clarity in defining machine intent and obligations necessitate the development of novel frameworks and specific cyber law regulations. The innovation of this study lies in presenting a combined analysis of contract law and emerging cyber law concepts for inter-AI interactions and proposing legal criteria for validating and ensuring the enforceability of such contracts. The findings can guide the formulation of comprehensive regulations and legal safeguards for autonomous intelligent interactions.