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MCP Server

com.pulsemcp/langfuse MCP Server

com.pulsemcp/langfuse

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What is the com.pulsemcp/langfuse MCP server?

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

How to install com.pulsemcp/langfuse

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • LANGFUSE_SECRET_KEY
    required
    secret

    Langfuse secret key for authentication.

  • LANGFUSE_PUBLIC_KEY
    required
    secret

    Langfuse public key for authentication.

  • LANGFUSE_BASE_URL

    Langfuse API base URL.

Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "langfuse": {
      "command": "npx",
      "args": [
        "-y",
        "langfuse-observability-mcp-server",
        "-y"
      ],
      "env": {
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.json
{
  "mcpServers": {
    "langfuse": {
      "command": "npx",
      "args": [
        "-y",
        "langfuse-observability-mcp-server",
        "-y"
      ],
      "env": {
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "langfuse": {
      "command": "npx",
      "args": [
        "-y",
        "langfuse-observability-mcp-server",
        "-y"
      ],
      "env": {
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "langfuse": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "langfuse-observability-mcp-server",
        "-y"
      ],
      "env": {
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}
Claude Code
claude mcp add langfuse --env LANGFUSE_SECRET_KEY=<YOUR_LANGFUSE_SECRET_KEY> --env LANGFUSE_PUBLIC_KEY=<YOUR_LANGFUSE_PUBLIC_KEY> --env LANGFUSE_BASE_URL=<YOUR_LANGFUSE_BASE_URL> -- npx -y langfuse-observability-mcp-server -y

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