Trace the agent. Measure the change. Ship with evidence.
An open-source AI engineering platform for tracing, evaluating and improving LLM applications and agent workflows.
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Langfuse
Langfuse is an open-source AI engineering platform for tracing LLM and agent applications, prompt management, evaluations, datasets and production monitoring, with Python and JavaScript integrations. Curated from official public information; this listing is not yet claimed.
Product showcase
Premium profileCapture LLM calls, tool use and retrieval steps
Score outputs and compare experiments
Turn production signals into better releases
Capability references: official product documentation.
The product / verified capabilities
Inspect hierarchical traces across model calls, tools and retrieval.
Use datasets, experiments and evaluations to compare changes.
Use Langfuse Cloud or self-host the open-source platform.
Choose your level
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Founding Premium · £19/month
Available to the first 25 Premium customers. Keep the £19/month founder rate for as long as the subscription remains active.
Compare plans & continueTrace the agent. Measure the change. Ship with evidence.
An open-source AI engineering platform for tracing, evaluating and improving LLM applications and agent workflows.
Example only: Langfuse has not purchased or endorsed this placement. Sponsored performance is not guaranteed.