Raindrop, which develops tech for monitoring AI agents to catch failures such as hallucinations and tool misuse, raised a $35M Series A led by CRV (Chris Metinko/Axios)

Raindrop, a company that builds monitoring tools for AI agents, secured $35 million in a Series A round led by CRV’s Chris Metinko and Axios. The funding will support development of technology that detects hallucinations and tool misuse in autonomous AI systems. The round follows industry concerns about AI reliability and safety.