Lemma

Lemma is a production monitoring platform for AI agents. It reads the traces an agent produces in live use, checks each one against the agent's own instructions, and groups recurring failures into issues, including silent failures that return a success status and therefore never appear in ordinary error monitoring. The product is aimed at teams that run agents in production and want to find problems before users leave. Lemma triages issues and sends alerts to Slack, and it can show representative traces for a failure along with how many recent runs were affected and a suggested fix, such as a draft prompt change for review. An MCP server pulls this context into a coding agent so a developer can resolve an incident without leaving their editor. After a fix ships, Lemma creates an online evaluation so that a later regression is flagged immediately, and metrics track agent behavior over time. The homepage offers a demo booking and links to documentation and a login. No pricing page is published, and the site directs prospective customers to book a demo.