Lemma is a YC F25 company building production monitoring for AI agents. We help companies automatically improve their AI agents from production data by catching the silent failures your observability tools miss and building self-healing loops.

We're backed by Y Combinator, Matrix, Liquid 2 and operators from OpenAI, xAI, and Doordash. We look for people who act like founders - driven by the mission, biased toward action, and committed to craft.