AI Plugin Index
Langfuse MCP
CommunityMCP server by avivsinai · updated · ★ 113
Langfuse MCP server for accessing and analyzing telemetry data via natural language Langfuse MCP is a community project by avivsinai, not verified by a company domain.
Last commit 12 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 113 stars, original repository
No risky patterns in the files we checked
What you need
| Setting | Needed | What it is |
|---|---|---|
LANGFUSE_Environment variable, secret | Required | Langfuse public API key |
LANGFUSE_Environment variable, secret | Required | Langfuse secret API key |
LANGFUSE_Environment variable | Optional | Langfuse API base URL (Cloud or self-hosted) Default: https://cloud.langfuse.com |
LANGFUSE_Environment variable | Optional | Set true to disable write tools Default: false |
From the publisher's entry in the official MCP Registry. Required settings are already in the install config below as placeholders.
Install Langfuse MCP
Built from the published package, never by AIclaude mcp add langfuse-mcp -e LANGFUSE_PUBLIC_KEY=YOUR_LANGFUSE_PUBLIC_KEY -e LANGFUSE_SECRET_KEY=YOUR_LANGFUSE_SECRET_KEY -- uvx langfuse-mcpRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"langfuse-mcp": {
"command": "uvx",
"args": [
"langfuse-mcp"
],
"env": {
"LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY",
"LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY"
}
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"langfuse-mcp": {
"command": "uvx",
"args": [
"langfuse-mcp"
],
"env": {
"LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY",
"LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY"
}
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"langfuse-mcp": {
"command": "uvx",
"args": [
"langfuse-mcp"
],
"env": {
"LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY",
"LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY"
}
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add langfuse-mcp --env LANGFUSE_PUBLIC_KEY=YOUR_LANGFUSE_PUBLIC_KEY --env LANGFUSE_SECRET_KEY=YOUR_LANGFUSE_SECRET_KEY -- uvx langfuse-mcp{
"mcpServers": {
"langfuse-mcp": {
"command": "uvx",
"args": [
"langfuse-mcp"
],
"env": {
"LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY",
"LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY"
}
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add langfuse-mcp uvx langfuse-mcpGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the langfuse-mcp block.
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Security check
ANo download-and-run commands, hidden instructions or signs of sending keys out were found.
Checked automatically: README.md. This looks for known risky patterns and is not a full audit. How grades work
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Langfuse MCP: common questions
How do I install Langfuse MCP?
In Claude Code run claude mcp add langfuse-mcp -e LANGFUSE_PUBLIC_KEY=YOUR_LANGFUSE_PUBLIC_KEY -e LANGFUSE_SECRET_KEY=YOUR_LANGFUSE_SECRET_KEY -- uvx langfuse-mcp. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Langfuse MCP the official server?
Langfuse MCP is a community project by avivsinai, not verified by a company domain.
Is Langfuse MCP free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Langfuse MCP safe to use?
It scores 78 of 100. Grades: maintenance A, licence A, quality B. Security check: grade A, no risky patterns found in the files checked. Review the code before you install. How grades work.
What are alternatives to Langfuse MCP?
Similar MCP servers: Jitsu, Oh My Posh Validator, World Monitor, mcp.
Does Langfuse MCP work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.