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Langfuse

★ 35.6k

A self-hosted alternative to Datadog, Sentry

MIT LicenseOpen Source — No Paywall6 Containers — 6 containers — moderate hosting footprintCompose · K8sNeeds Postgres3 documented maintainers

About

Langfuse is an open source platform for LLM application engineering aimed at teams building AI products. It provides a centralized place to instrument applications, inspect traces, monitor LLM calls,...

Community Ratings

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Features

  • LLM application observability
  • Prompt management
  • Evaluations
  • Datasets
  • LLM playground
  • Comprehensive API
  • SDKs
  • OpenAPI spec
  • Postman collection
  • Typed Python and JS/TS SDKs

Details

Last Updated
Oct 11, 2026
Created
May 18, 2023
Install Methods
docker-composekubernetes
Requirements
Docker ComposeKubernetes clusterHelm
API
REST
Runtime / Stack
Docker
Privacy & Independence
Cloud: Optional
User Model
Multi-User
Deployment

Deployment: Docker Compose ✓6 Containers — moderate hosting footprintRuns as 6 containers

Docker Compose

6 services · database: postgres · infra: minio, redis, postgres · 1 unclassified (clickhouse-server)

no resource limits declared

needs persistent storage (5 volumes)

docker-compose.yml · @ 8532971 · scanned Jun 8, 2026

# Make sure to update the credential placeholders with your own secrets.
# We mark them with # CHANGEME in the file below.
# In addition, we recommend to restrict inbound traffic on the host to langfuse-web (port 3000) and minio (port 9090) only.
# All other components are bound to localhost (127.0.0.1) to only accept connections from the local machine.
# External connections from other machines will not be able to reach these services directly.
services:
  langfuse-worker:
    image: docker.io/langfuse/langfuse-worker:3
    restart: always
    depends_on: &langfuse-depends-on
      postgres:
        condition: service_healthy
      minio:
        condition: service_healthy
      redis:
        condition: service_healthy
      clickhouse:
        condition: service_healthy
    ports:
      - 127.0.0.1:3030:3030
# ...

Open-source health

FOSS with issues

poisoned-sourceopen-corevc-funding

Source: isitreallyfoss.com · reviewed Jun 2025

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Metadata extracted from README on Aug 21, 2026

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