Last updated 06-28-2026
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Lunary
Lunary is an observability and prompt management platform for LLM-based apps. Teams use it to monitor chatbots and agents in production, manage prompts, run evaluations, and add guardrails without sitting in the middle of inference calls. It works as a cloud service or self-hosted deployment for teams that need control over where logs and user data live.
The platform traces LLM runs, chains, embeddings, and chat threads, then surfaces them in dashboards with chat replays, topic classification, and human review workflows. Prompt templates, an AI playground, and scoring tools help teams iterate on prompts and catch regressions before users do. SDKs run asynchronously so logging does not add latency to API calls.
Lunary targets engineering teams shipping production LLM features, from solo builders on the free tier to enterprises that need SSO, PII masking, SOC 2 reports, and Kubernetes deployment in their own VPC. It integrates with OpenAI, LangChain, LiteLLM, Flowise, and 20+ other sources and destinations.
Trace LLM, chain, embedding, and chat runs without adding call latency
Prompt templates, chat replays, and an AI playground for iteration
Topic classification and custom dashboards to spot usage trends
PII masking, RBAC, and SSO on enterprise and self-hosted plans
20+ integrations including OpenAI, LangChain, LiteLLM, and Flowise
Export filtered logs to OpenAI JSONL for model fine-tuning
Self-host the community edition or deploy to your VPC with Docker or Kubernetes
Free tier includes 10,000 events per month with no credit card required.
SDKs log asynchronously so production LLM latency stays unchanged.
Self-hostable community edition plus enterprise Kubernetes and Docker options.
SOC 2 Type II and ISO 27001 certified with PII masking and SSO available.
Exports filtered logs to OpenAI JSONL for fine-tuning workflows.
Free plan retains only 30 days of log history.
Several integrations and automation connectors are marked coming soon or enterprise-only.
AI Playground on Team is capped at 1,000 queries per month before overage fees apply.
What is Lunary?
Lunary is a platform to monitor, improve, and secure AI chatbots and LLM apps. It offers observability, prompt management, evaluations, and LLM guardrails. Teams use it to log production runs, review conversations, and manage prompts from a central dashboard.
Does Lunary have a free plan?
Yes. Lunary offers a Free plan at $0 per month with 10,000 events per month, up to 3 projects, and 30 days of log retention. No credit card is required to sign up.
How much does Lunary Team cost?
Lunary Team costs $20 per user per month. It includes 50,000 events per month, unlimited projects, one year of history, the AI Playground, and advanced features. Additional events cost $10 per 50,000 per month after the included quota.
Does Lunary slow down LLM API calls?
No. Lunary SDKs run asynchronously and do not sit as a middleman between your code and inference APIs. Logging happens in the background so it does not affect the latency of your LLM calls.
What integrations does Lunary support?
Lunary supports 20+ integrations for LLM data. Native SDK integrations cover OpenAI, Anthropic, LangChain, LangGraph, LiteLLM, Flowise, IBM WatsonX, and more. Enterprise destinations include Snowflake, BigQuery, Tableau, and Segment. Any service can connect via the HTTP API.
Can Lunary be self-hosted?
Yes. Lunary offers a free Community Edition for self-hosting and paid Enterprise Edition options with Docker and Kubernetes support. Cloud customers can migrate to self-hosted plans with help from the Lunary team.
Where is Lunary data hosted?
Lunary cloud data is hosted by default in Europe and is GDPR compliant. On-premises hosting is also available. On self-hosted deployments, data stays on your infrastructure indefinitely.