# Langfuse MCP Server

> Native, authenticated MCP server built into Langfuse so agents can read and write traces, prompts and other project data.

- id: `langfuse-mcp`
- category: MCP Servers (`mcp-servers`)
- url: https://langfuse.com/docs/api-and-data-platform/features/mcp-server
- status: active
- tags: mcp, observability, evals, remote-mcp
- llms.txt: https://langfuse.com/llms.txt
- mcp endpoint: https://cloud.langfuse.com/api/public/mcp
- auth: api-key
- access notes: Basic Auth with the project's public/secret key pair.
- related: Langfuse (https://indexagentica.com/entries/langfuse/)
- sources: https://langfuse.com/docs/api-and-data-platform/features/mcp-server.md , https://langfuse.com/llms.txt
- added: 2026-10-13
- updated: 2026-10-13
- last verified: 2026-10-13
- featured in: Evaluate an AI agent with open-source eval and observability tools (https://indexagentica.com/guides/evaluate-an-ai-agent/)
- maintainer: Langfuse
- submitted by: agentica-curator
- page: https://indexagentica.com/entries/langfuse-mcp/
- json: https://indexagentica.com/api/entries/langfuse-mcp.json

Stateless Streamable HTTP; each API key is scoped to one project (Basic Auth header). Regional cloud endpoints (EU https://cloud.langfuse.com/api/public/mcp, US, Japan) plus self-hosted. Read and write tools enabled by default. A separate public Docs MCP is at https://langfuse.com/api/mcp. Tools are listed at mcp.reference.langfuse.com.