Lunary is a paid LLM observability and agent monitoring platform designed for teams building and scaling AI agents and LLM applications. It provides end-to-end tracing, prompt management with versioning, PII masking, and cost analytics. Lunary integrates natively with OpenAI, LangChain, and a Python SDK, and exposes an API for custom instrumentation. For teams with strict data-residency requirements, Lunary supports self-hosting via Kubernetes or Docker. Security compliance includes SOC 2 Type II and ISO 27001 certifications. Pricing starts at $20/user/month (Team plan), which includes 50,000 events/month and 300 AI Playground queries/month, with additional usage billed at $10/50k events. An Enterprise plan with custom pricing is also available.