AI agent eval startup Raindrop raises Series A led by CRV, $50M total funding
ycombinator · x · 2026-09-18
Y Combinator-backed AI agent evaluation startup Raindrop announced a Series A led by CRV, bringing total funding to $50M.
Raindrop detects failures in AI agents, such as tool call failures and decision errors, with customers including Vercel, Clay, and Speak. The team started as a terminal tool and is now using Simulations to tackle failure detection across the rise and fall of agent behavior.
Related event: Agent security startup Raindrop raises $50M Series A, launches Simulations(8 posts)→
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