AI Tools Lab
Langfuse
A platform for tracing, monitoring and evaluating AI applications. It can be self-hosted.
← All tools
- What it is for
- Seeing what your agent did, how long it took and what it cost.
- Beginner friendly
- no
- Difficulty
- advanced
- Coding required
- required
- Where it runs
- web, self-hosted
- Pricing model
- freemium
- Free plan notes
- The official pricing page shows a free Hobby plan (50k units/month, 30 days of data access, 2 users) and self-hosting guides.
- Paid plan notes
- Core USD 29/month, Pro USD 199/month, Enterprise USD 2,499/month (the page showed a dollar sign without naming the currency). Extra usage is charged per 100k units.
- Account or API key needed
- A Langfuse account, or your own server for self-hosting.
- Privacy considerations
- Traces can contain the prompts and outputs of your app. Do not send personal or confidential data to a tracing service without a clear policy.
- Recommended before you start
- You already have a small agent or app that calls a model.
Prices and free plans change. We last checked this on 2026-10-15. Always confirm on the official site.
Guided labs
Guided labs for this tool unlock with the course, or are still being written.