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Langfuse documents a public API covering its data and features; the text does not state which plans include it. langfuse.com, checked 9 Oct 2026 (opens in a new tab)
Most tables in the Langfuse interface can be exported in batches with the applied filters. langfuse.com, checked 9 Oct 2026 (opens in a new tab)
Pay-as-you-go customers have a one-month term that renews monthly until either party ends it. clickhouse.com, checked 9 Oct 2026 (opens in a new tab)
Langfuse runs an integrations directory covering frameworks, model providers and gateways. langfuse.com, checked 9 Oct 2026 (opens in a new tab)
Public API, plan access not stated. Batch export from most tables. Monthly pay-as-you-go term, ended any time. Own integrations directory.
Free plan availableFree plan
Open-source LLM observability and engineering platform. Traces every LLM call, tracks costs and latency, manages prompts, runs evaluations. Debug, optimize, and improve AI products in production. Self-hosted: free. Cloud Hobby: free (50K observations/month). Core: $29/month. Pro: $199/month.
LLM-as-a-judge evaluations, AI-assisted prompt optimization, and deep observability into AI agent and LLM call behavior in production.
One of the best tools for understanding what your AI application does in production. Open-source, generous free tier, framework-agnostic. If building LLM products and tracking performance and quality, Langfuse belongs on your shortlist.
