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
Other Dev Tools tools (6)
| Clerk | 3 dashboard seats; fixed 7-day sessions; 1-day log retention | Card: none |
| Docker | Personal/small biz | |
| Firecrawl | 500 searches or 1,000 pages; 2 concurrent requests, low rate limits | Card: none |
| Postman | Limited collaboration | |
| Sentry | 5k errors/month | |
| Warp | Monthly AI request cap |