Langfuse MCP server for accessing and analyzing telemetry data via natural language
To add Langfuse MCP to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 4 environment variables, listed below.
Install
uvx langfuse-mcp@0.14.0Environment variables
LANGFUSE_PUBLIC_KEYSet in your MCP configLANGFUSE_SECRET_KEYSet in your MCP configLANGFUSE_HOSTSet in your MCP configLANGFUSE_MCP_READ_ONLYSet in your MCP configInstall with your client
claude mcp add langfuse --env LANGFUSE_PUBLIC_KEY=<YOUR_LANGFUSE_PUBLIC_KEY> --env LANGFUSE_SECRET_KEY=<YOUR_LANGFUSE_SECRET_KEY> --env LANGFUSE_HOST=<YOUR_LANGFUSE_HOST> --env LANGFUSE_MCP_READ_ONLY=<YOUR_LANGFUSE_MCP_READ_ONLY> -- uvx langfuse-mcp@0.14.0
Run this in a terminal to add the server to Claude Code.
What this does
Langfuse MCP exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
LANGFUSE_PUBLIC_KEY LANGFUSE_SECRET_KEY LANGFUSE_HOST LANGFUSE_MCP_READ_ONLY
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Langfuse MCP?
Run the Claude Code command in the install section to add Langfuse MCP to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Langfuse MCP?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Langfuse MCP as well.
Does Langfuse MCP need an API key?
Yes. Before it can run, set these environment variables: LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, LANGFUSE_HOST, LANGFUSE_MCP_READ_ONLY. They go in the env block of your MCP config.
What license is Langfuse MCP under?
Langfuse MCP is listed under the MIT license.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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