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Toolofficial publisher

Langfuse

Tool : standalone product, used directly

Observabilité LLM open source : traces, coûts, évaluations, gestion de prompts.

La référence auto-hébergeable, restée MIT après le rachat par ClickHouse.

Overall score
8.5 /10
Security: nothing to flag
Utility
9.0
Reliability
6.0
Security
10.0
Ease
5 min · Comfortable

In practice

Price
Freemium
Commercial use
Commercial use: yes
Available on
web, docker
Licence
MIT

Security and data

Rating
Security: nothing to flag
Your data
Local or cloud depending on use
Known incidents
Rachat par ClickHouse annoncé le 16 janvier 2026.
Maintenance
Active

Card verified on 13 September 2026 · added on 1 May 2023

How to install Langfuse

1. Auto-hébergé : clonez le dépôt et lancez docker compose (commande ci-dessous) ; interface sur http://localhost:3000. 2. Ou créez un compte sur cloud.langfuse.com (région UE disponible). 3. Créez un projet, récupérez les clés publique et secrète, puis instrumentez votre code avec le SDK ou l'intégration OpenTelemetry.
git clone https://github.com/langfuse/langfuse.git && cd langfuse && docker compose up -d

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