Lunary
Verified Oct 16, 2026 ActiveTracing, analytics and prompt versioning for LLM apps, with a self-hostable community edition.
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $20/seat/mo
- Billing
- Per seat, monthly
Free cloud tier at $0. Team is $20 per user per month, including 50,000 events (then $10 per additional 50,000), 1,000 playground queries a month, unlimited projects, one year of history and a ten-seat ceiling. Enterprise is quoted. The community edition self-hosts free.
Use tool ↗About Lunary
Lunary is an observability layer for LLM applications: traces with error stacks and full-text search for debugging agents, analytics on model usage, spend and user satisfaction, custom dashboards, and prompt templates with versioning and A/B testing. SDKs cover OpenAI, Anthropic, Vertex, Azure and Mistral. Enterprise controls include PII masking, role-based access and SSO. The community edition can be self-hosted for free; the enterprise edition adds supported Docker and Kubernetes deployment. Lunary LLC sells a free cloud tier, a Team plan at 20 dollars per user per month capped at ten seats, and a quoted enterprise plan.
- Platforms
- Web · API
- API
- Yes
- Last verified
- Oct 16, 2026
Verified sources
- Traces, analytics, prompt templates with A/B testing, PII masking, RBAC and SSO, SDKs for major providers, self-hosting via Docker or Kubernetes; copyright Lunary LLClunary.ai ↗
- Free $0, Team $20 per user per month with 50k events then $10 per 50k, 10-seat cap, Enterprise custom; community edition free to self-hostlunary.ai ↗
Is Lunary legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Dec 8, 2023 (2 years ago)Registry record (RDAP), registrar Porkbun LLC, looked up Sep 15, 2026
- TLS certificate
- Issued by Let's Encrypt, valid until Nov 27, 2026Seen in our own connection to the site on Oct 16, 2026
- Last checked
- Oct 16, 2026The site answered
- Operated by
- Lunary LLC, United StatesOur research, card verified Aug 23, 2026
Pros & cons of Lunary
A mid-weight alternative to the big observability suites: traces, cost analytics and prompt versioning without the platform tax, and a free self-hosted edition if you would rather keep traces in your own network. The cloud Team plan is priced per seat and capped at ten, so it fits a small team and then pushes you into a sales conversation.
Pros
- Traces with error stacks and search, aimed at debugging multi-step agents
- Cost, usage and user-satisfaction analytics with custom dashboards
- Prompt templates with versioning and A/B testing
- SDKs for OpenAI, Anthropic, Vertex, Azure and Mistral
- Community edition self-hosts at no cost; PII masking, RBAC and SSO available
Cons
- Team plan hard-caps at ten seats before Enterprise
- 50,000 events included, then $10 per further 50,000 on top of seats
- Self-hosted Docker and Kubernetes support is the paid enterprise edition, not the free one
- Company country is inferred from the entity name; no address is published
Best for
- Small teams debugging agent traces and watching token spend
- Keeping prompt versions and A/B tests outside application code
- Self-hosting observability when traces cannot leave your network
Not for
- Teams over ten people who want to stay self-serve
- High-volume applications — events are metered on top of the seat price
Watch out: Two meters run at once on the Team plan — per seat and per 50,000 events — so a chatty product costs more than the seat price suggests.