open source · Observability · MIT core

Langfuse

Trace, evaluate and debug LLM agents.

In short

  • What it is: Observability, 12k+ GitHub stars, licensed MIT core.
  • Replaces: LLM observability SaaS — around $1,188/year saved.
  • Installed for: $199 on your own server — you own it, no monthly platform fee.
  • Licence: MIT core. MIT core resellable.
How the service works
12k+ GitHub starsMIT coreinstall difficulty: medium

$1,188

replaces per year

$5,940

saved over 5 years

$199

one-time install (yours forever)

48h

delivery

what it replaces

Langfuse vs the tools it replaces.

FeatureCommercial toolLangfuse (self-hosted)
PricingUsageFlat
DataVendorYours
LicenceProprietaryMIT

Replaces

  • LLM observability SaaS — ~$99/mo

Licence posture

MIT core. You can white-label and resell this. We'll brand it as yours.

MIT core resellable.

how to resell / replace

Turn it into a business.

Sell "we monitor and improve your AI" as part of a care plan. Self-host the traces so client data stays put.

Bundle this with a done-for-you product: see the AI businesses or the white-label alternatives.

Best for

Install difficulty

medium

what we do

The install, step by step.

1

Docker Compose

2

Postgres

3

Keys

4

Dashboards

5

Alerts

langfuse · install demo
see it installed

Watch a Langfuse install.

We generate an architecture diagram of the repo and walk through the deployment. Enter your name and email to unlock the demo.

Install Langfuse — $199.

Flat fee, delivered in 24–48 hours, on your own server, with HTTPS, backups and the AI keys wired.

All repos
FAQ

Langfuse: common questions

What does Langfuse replace?

LLM observability SaaS — about $1,188 a year in subscriptions you stop paying.

How much does it cost to run Langfuse?

No licence fee — it ships under MIT core. You pay only for your own server and any model/API keys. We install, harden and hand it over for a one-time $199.

Can I white-label and resell Langfuse?

You can white-label and resell this. We'll brand it as yours. MIT core resellable.

How hard is the install, and how long does it take?

We rate it medium. Delivered in 24–48 hours on your own server, with HTTPS, backups and the AI keys wired.

What do I actually own after installing Langfuse?

The running app, your data and the brand. No monthly platform fee and no per-seat pricing — you own it outright.