Langfuse
LLM tracing, evals and prompt management, 50k units a month.
Card: noneDev Tools
What you get
All platform features with limits, 50k units a month, 2 users.
How to get it
Sign up at langfuse.com.
What it requires
No credit card required.
The catch
Only 30 days of data access.
From the official page ยท checked 2026-10-14