@avivsinai
基本信息
A Model Context Protocol (MCP) server for Langfuse, enabling AI agents to query Langfuse trace data for enhanced debugging and observability
使用下面的配置,将此服务器添加到你的 MCP 客户端。
{
"mcpServers": {
"langfuse-mcp": {
"command": "npx",
"args": [
"skills",
"add",
"avivsinai/langfuse-mcp",
"-g",
"-y"
]
}
}
}工具列表暂未提供
当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。
点击上方按钮,在临时沙箱中运行此服务器并实时获取工具列表。
Langfuse MCP is an agent-facing Model Context Protocol server and skill for Langfuse observability. It lets AI agents query traces, inspect generations, debug exceptions, analyze sessions, manage prompts, browse datasets, and understand what agents did in production.
Install via uvx langfuse-mcp with Python 3.10+ and the uv runtime. Set environment variables LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, and LANGFUSE_HOST (defaults to Langfuse Cloud). Add the server to an MCP client (Claude Code, Codex, Cursor) using the provided configuration commands or JSON files. Start the MCP client, then invoke tools directly or use the included agent skill for ready‑made debugging playbooks.
--tools flag to reduce token overhead.--read-only) disables all write operations.--default-output-mode) for compact, full JSON string, or file output.Authorization header.Langfuse MCP is a local, debugging‑first server with compact trace inspection, exception triage, session analysis, and route‑decision tools. It does not mirror every native MCP tool; the native MCP is a hosted endpoint with a broader API surface.
Python 3.10–3.14 and the `uv` package runner (for `uvx`). The server is verified on CI for those Python versions.
Yes. Use `langfuse-mcp --tools traces,prompts` to load only the tool groups you need. Available groups include traces, observations, routing, sessions, exceptions, prompts, datasets, annotation_queues, scores, metrics, and schema.
Yes. Start with `langfuse-mcp --read-only` or set `LANGFUSE_MCP_READ_ONLY=true` to disable all write operations (e.g., creating prompts, datasets, annotation queue items).
Run the server in HTTP transport mode with `--transport streamable-http`. Each MCP client passes its project credentials as a `Basic` `Authorization` header (base64(public_key:secret_key)). An absent header falls back to the server’s startup environment credentials.
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