Langfuse
Open-source platform for tracing, evaluating and improving AI agents
Observability tool by Langfuse (ClickHouse)
Chalk Labs
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Install
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pip install langfuse
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About
Use cases: monitoring-observability, llm-evaluation, prompt-engineering
Reviews
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Fact sheet
- Category
- Tracing · open source
- Self-host
- Yeslangfuse.com
- Open source
- Yesraw.githubusercontent.com
- Compliance (vendor says)
- SOC 2, ISO 27001, HIPAAlangfuse.com
- SLA
- Uptime SLA on Enterprise (percentage not stated)langfuse.com
- Protocols
- opentelemetrylangfuse.com
Plans
| Hobby | $0 | 50k units/month included, 2 users, 30 days data access |
|---|---|---|
| Core | $29/month | 100k units/month included, then $8 per 100k units; unlimited users; 90 days data access |
| Pro | $199/month | 100k units/month included, then $8 per 100k units; 3 years data access; SOC2 and ISO27001 reports, BAA available for HIPAA |
| Enterprise | $2499/month | 100k units/month included, then $8 per 100k units; audit logs, SCIM API, uptime SLA |
From the vendor's pricing page, read Oct 24, 2026.
Facts read from the vendor's own pages by claude-haiku-5-5 on Oct 24, 2026; a fact is shown only with the page it came from.
Signals
- Stars
- 36,350
- Forks
- 4,068
- Open issues
- 328
- Last commit
- Oct 24, 2026 (6 days ago)
- Last release
- Oct 24, 2026 (6 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- Packages
- pypi
langfuse - License
- Other
- Repository
- github.com/langfuse/langfuse
- Website
- langfuse.com
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
Done for you
Rather not set it up yourself?
Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
See how we build AI agents →Read the case studies
Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
- launches shipped
- 50+
- launches shipped
- media placements
- 500+
- media placements
- founders on every account
- 2
- founders on every account
Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block
Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
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Cite this page
Langfuse. Agent Mart. https://agentmart.dev/observability/langfuse (last updated 2026-10-24)