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Langfuse

Langfuse is an open-source AI engineering platform.

Software Development
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Headquarters
San Francisco, California, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded
2022Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
44 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Langfuse do?

The platform helps teams develop, monitor, evaluate, and debug AI applications collaboratively.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

Its users range from startups to large companies.

What the business offers

Services & capabilities.

AI tracing

Developers can trace language models and frameworks using SDKs for Python and JS/TS, an open API, and native integrations.

Source: LinkedIn company description · Retrieved October 13, 2026

Prompt and evaluation tools

Developers use prompt management, open APIs, and testing and evaluation pipelines.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWLangfuse listed #3 on AI sdk software companies, September 30, 2026Open the published source list.
Langfuse

#3 AI sdk software companies

Snapshot: September 30, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 3, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 3, 2026, September 4, 2026, September 11, 2026, September 12, 2026, September 13, 2026, September 18, 2026, September 20, 2026, September 26, 2026, September 27, 2026, September 28, 2026 and September 30, 2026. How the company lists are built.

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