Langfuse

Open-source agent tracing, evals and prompt management.

open-source / freemium cloud · starts at $29/mo

Website GitHub Pricing source

Pricing model: open-source / freemium cloud
Starts at: $29/mo
GitHub stars: 35,875
Last push: Oct 15, 2026
Last verified: Oct 15, 2026

Tier lists

Where Langfuse is ranked, and why. Every placement is provisional.

S
Agent Observability & Evals
Agents
Leading open-source observability (35k+ stars), self-hostable.
provisional

Related tools

Other tools on the same provisional lists.

Comparisons