Raindrop, the monitoring platform for AI agents, has raised $15M in seed funding led by Lightspeed Venture Partners with participation from Figma Ventures, Vercel Ventures, founders of Replit, Cognition, Framer, Speak, Notion COO Akshay Kothari, and Y Combinator.
The capital will fuel enterprise expansion as Raindrop becomes the de facto observability layer for teams running autonomous agents in healthcare, finance, and other high-stakes domains.
As agents reason for hours, use dozens of tools, and connect to MCP servers, legacy evals and basic telemetry (latency, toxicity, sentiment) no longer cut it. Silent failures—like ChatGPT telling users to stop medication or Air Canada’s chatbot promising invalid refunds—slip through and cause real-world damage.
Raindrop introduces a new standard: lightweight, product-specific models that continuously monitor millions of events and surface only the issues that matter—then explain exactly what went wrong and how to fix it.
Zubin Koticha, CEO of Raindrop: “AI agents are more capable than ever. They're reasoning longer, using more tools, and connecting to MCP servers. Some agents now run autonomously for hours. Traditional testing methods aren't capable of handling the complexity of these long trajectories. Raindrop is the first monitoring platform to solve this problem.”
Bucky Moore, Partner at Lightspeed: “We invested in Raindrop because they defined monitoring for AI agents. They made an early bet that monitoring would be the most critical part of building reliable agents, and they've been right. Lightspeed is thrilled to partner with Alexis, Ben, Zubin, and team to help them scale Raindrop into the default agent observability platform.”
Raindrop processes millions of events daily for leading AI companies, catching spikes in user frustration, infinite loops, tool misuse, and policy violations before they escalate.
Evan Goldschmidt, CTO at Tolan: “It's like if we see an iOS crash report in Sentry, but for our AI capabilities.”
The founding team—Zubin Koticha, Alexis Gauba (second-time founders, prev. exit to Coinbase), and Ben Hylak (ex-Apple Human Interface Design)—built Raindrop after repeatedly hitting silent agent failures while developing their own coding agent in YC.
About Raindrop
Raindrop is “Sentry for AI agents”—the monitoring infrastructure that catches when autonomous agents fail silently in production. Engineering teams use Raindrop to discover, track, and fix issues across millions of agent trajectories. https://www.raindrop.ai/
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