Langfuse is an open-source LLM engineering platform with 29K+ GitHub stars for tracing, evaluating, and monitoring AI applications. Acquired by ClickHouse, it provides detailed traces of LLM calls, prompt management with versioning, dataset-based evaluation, user feedback collection, and cost tracking. Framework-agnostic with native integrations for LangChain, LlamaIndex, OpenAI SDK, and Vercel AI SDK. Offers both self-hosted deployment and a managed cloud service.
Alternatives to Keep
1 editor-selected alternatives · Keep overview →
source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order
A directional evidence panel appears only when the substitute rationale, trade-offs, sources, and verification date have been recorded. Older selections without that panel remain visible but are unclassified under the new evidence contract.
Open-source Keep alternatives
Langfuse — see all open-source developer tools.
Free Keep alternatives
Langfuse offer a free plan or free tier.
More AI Monitoring & Observability tools
same category, not editor-selected alternatives — see how Keep compares →
FAQ
Which Keep alternative is listed first?
Langfuse is first in the editor-selected list of 1 Keep alternatives and carries an editorial review score of 87/100. The stored order is editorial; review scores do not determine membership or position.
Are there open-source Keep alternatives?
Yes — Langfuse are open source.
Are there free Keep alternatives?
Yes — Langfuse offer a free plan or free tier.