Mem0 raised $24 million across seed and Series A rounds to build the memory layer that AI agents currently lack, with API calls surging from 35 million in Q1 to 186 million in Q3 2025 as developers adopt production-ready personalization infrastructure.

The YC-backed startup tackles a fundamental limitation holding back agentic AI deployment: even sophisticated models forget everything between interactions, forcing users to repeatedly provide context and watch agents suggest the same rejected patterns. This “digital amnesia” creates friction that undermines the promise of truly intelligent, personalized AI experiences.