The team building MouseCat
MouseCat is on a mission to enable Risk & Compliance teams to stop fraud and scams at scale.
Who we are
MouseCat was founded in January 2026 and is headquartered in NYC. Our team members include ML engineers from Coinbase, AWS AI, Chess.com, and Microsoft, a Virology Scientist from the CDC, a Former Core Maintainer of MCP, and a Yale-educated lawyer with CS and Math degrees. We combine domain expertise with the diverse technical background it takes to build fundamentally new systems to tackle fraud and scams.
We have raised over $10M in seed funding from Y Combinator, Oak HC/FT, and executives from Stripe, Plaid, Databricks, AWS, and Anthropic. Our customers include Fortune 500 enterprises and global financial institutions.
If you are interested in joining our team, send us a message at hello@mousecat.ai.
Combinator
CombinatorNicholas Aldridge
Co-Founder & CEO
MouseCat
Nicholas Aldridge is the Co-Founder and CEO of MouseCat, and a Core Maintainer Emeritus of MCP. He spent 6.5 years as a Principal Engineer at AWS AI, where he launched Amazon Bedrock Knowledge Bases, Agents, and AgentCore. He also represented Amazon on the A2A steering committee. Nicholas has helped some of the largest and most security and privacy sensitive organizations in the world plan and execute their AI strategies.
Joseph McAllister
Co-Founder & CTO
MouseCat
Joseph McAllister is the Co-Founder and CTO of MouseCat. Before MouseCat, Joseph built Coinbase's ML and Risk infrastructure, focusing on streaming systems, large-scale data processing workloads, and ATO and ACH fraud detection models. Prior to Coinbase, he worked at Microsoft on Azure Data Factory, a service for building Spark-based ETL pipelines. While studying Computer Science at Cornell University, he founded Roo Storage, which was acquired in 2020.