com.pulsemcp/langfuseai

langfuse

Verified · yesterday

MCP server for Langfuse LLM observability — trace and observation analysis.

Install

claude mcp add langfuse -- npx -y [email protected]

Requires: LANGFUSE_SECRET_KEY, LANGFUSE_PUBLIC_KEY, LANGFUSE_BASE_URL

Our take

Read-only Langfuse trace inspection: four tools (get_traces, get_trace_detail, get_observations, get_observation) for debugging LLM pipelines and analyzing cost/latency, with a practical token-saving touch — any payload field over 1000 chars is truncated to a /tmp file with a grep-able reference. It requires Langfuse public and secret keys and defaults to Langfuse Cloud, though self-hosted instances work via LANGFUSE_BASE_URL. Like the remote-filesystem sibling it lives in the 'experimental' tier of PulseMCP's monorepo — explicitly not graduated to their productionized set — and adoption is thin (~73 weekly downloads). For teams already on Langfuse who want an agent to dig through traces; the read-only design keeps the blast radius small.

reviewed by hand · 2026-07-05

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Verification record

last verified
yesterday
github stars
72
last commit
yesterday
archived
no
license
MIT
npm
langfuse-observability-mcp-server
downloads / wk
73
latest version
0.1.3
in registry since
2026-06-17

github.com/pulsemcp/mcp-servers