Traceloop

Traceloop builds observability and evaluation tools for teams developing LLM applications and AI agents. Its platform traces production calls, captures prompts, responses and latency, and checks output quality for faithfulness and relevance. Developers can train custom evaluators on their own examples, compare models and prompts, and run evaluations during development or on live traffic. Deployment options include cloud, on-premises and air-gapped environments.

Founded in 2023 by CEO Nir Gazit and CTO Gal Kleinman, Traceloop grew from their experience building software and machine-learning infrastructure at Google and Fiverr. Its engineering foundation is OpenLLMetry, an open-source framework built on OpenTelemetry that instruments LLM applications; Hub offers an OpenTelemetry-based gateway approach. In 2025, the company reported more than 500,000 OpenLLMetry downloads per month, with Cisco, Dynatrace and IBM using the framework. Miro used the commercial platform to monitor production performance and experiment with models.

ServiceNow completed its acquisition of Traceloop by May 2026, in a deal with a reported estimated value of $60–80 million; official terms were undisclosed. Traceloop technology supplies runtime AI-agent observability within ServiceNow’s AI Control Tower, connecting application monitoring with enterprise AI governance. In its acquisition announcement, Traceloop committed to keeping OpenLLMetry open source and stated its intention to continue selling Traceloop functionality.